initial commit on complete rewrite

pytube/__init__.py

@@ -1,21 +1,2 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
 # flake8: noqa
-__title__ = 'pytube'
-__version__ = '6.4.3'
-__author__ = 'Nick Ficano'
-__license__ = 'MIT License'
-__copyright__ = 'Copyright 2017 Nick Ficano'
-
-from .api import YouTube
-
-# Set default logging handler to avoid "No handler found" warnings.
-import logging
-try:  # Python 2.7+
-    from logging import NullHandler
-except ImportError:
-    class NullHandler(logging.Handler):
-        def emit(self, record):
-            pass
-
-logging.getLogger(__name__).addHandler(NullHandler())
+from pytube.__main__ import YouTube

pytube/__main__.py

@@ -1,150 +1,92 @@
-#!/usr/bin/env python
 # -*- coding: utf-8 -*-
-from __future__ import print_function
-
-import argparse
-import os
-import sys
-from pprint import pprint
-
-from . import YouTube
-from .exceptions import PytubeError
-from .utils import FullPaths
-from .utils import print_status
-
-
-def main():
-    parser = argparse.ArgumentParser(description='YouTube video downloader')
-    parser.add_argument(
-        'url',
-        help='The URL of the Video to be downloaded',
-    )
-    parser.add_argument(
-        '--extension',
-        '-e',
-        dest='ext',
-        help='The requested format of the video',
-    )
-    parser.add_argument(
-        '--resolution',
-        '-r',
-        dest='res',
-        help='The requested resolution',
-    )
-    parser.add_argument(
-        '--path',
-        '-p',
-        action=FullPaths,
-        default=os.getcwd(),
-        dest='path',
-        help='The path to save the video to.',
-    )
-    parser.add_argument(
-        '--filename',
-        '-f',
-        dest='filename',
-        help='The filename, without extension, to save the video in.',
-    )
-    parser.add_argument(
-        '--show_available',
-        '-s',
-        action='store_true',
-        dest='show_available',
-        help='Prints a list of available formats for download.',
-    )
-
-    args = parser.parse_args()
-
-    try:
-        yt = YouTube(args.url)
-        videos = []
-        for i, video in enumerate(yt.get_videos()):
-            ext = video.extension
-            res = video.resolution
-            videos.append((ext, res))
-    except PytubeError:
-        print('Incorrect video URL.')
-        sys.exit(1)
-
-    if args.show_available:
-        print_available_vids(videos)
-        sys.exit(0)
-
-    if args.filename:
-        yt.set_filename(args.filename)
-
-    if args.ext or args.res:
-        if not all([args.ext, args.res]):
-            print(
-                'Make sure you give either of the below specified '
-                'format/resolution combination.',
-            )
-            print_available_vids(videos)
-            sys.exit(1)
-
-    if args.ext and args.res:
-        # There's only ope video that matches both so get it
-        vid = yt.get(args.ext, args.res)
-        # Check if there's a video returned
-        if not vid:
-            print(
-                "There's no video with the specified format/resolution "
-                'combination.',
+"""
+pytube.__main__
+~~~~~~~~~~~~~~~
+
+This module implements the core interface for pytube.
+
+"""
+import json
+
+from pytube import download
+from pytube import extract
+from pytube import mixins
+from pytube.query import StreamQuery
+from pytube.streams import Stream
+
+
+class YouTube:
+    def __init__(
+        self, url=None, defer_init=False, on_progress_callback=None,
+        on_complete_callback=None,
+    ):
+        self.js = None
+        self.js_url = None
+        self.vid_info = None
+        self.vid_info_url = None
+        self.watch_html = None
+        self.player_config = None
+        self.fmt_streams = []
+        self.video_id = extract.video_id(url)
+        self.watch_url = extract.watch_url(self.video_id)
+        self.shared_stream_state = {
+            'on_progress': on_progress_callback,
+            'on_complete': on_complete_callback,
+        }
+
+        if url and not defer_init:
+            self.init()
+
+    def init(self):
+        self.prefetch()
+        self.vid_info = extract.decode_video_info(self.vid_info)
+
+        trad_fmts = 'url_encoded_fmt_stream_map'
+        dash_fmts = 'adaptive_fmts'
+        mixins.apply_fmt_decoder(self.vid_info, trad_fmts)
+        mixins.apply_fmt_decoder(self.vid_info, dash_fmts)
+        mixins.apply_fmt_decoder(self.player_config['args'], trad_fmts)
+        mixins.apply_fmt_decoder(self.player_config['args'], dash_fmts)
+        mixins.apply_cipher(self.player_config['args'], trad_fmts, self.js)
+        mixins.apply_cipher(self.player_config['args'], dash_fmts, self.js)
+        mixins.apply(self.player_config['args'], 'player_response', json.loads)
+        self.build_stream_objects(trad_fmts)
+        self.build_stream_objects(dash_fmts)
+
+    def prefetch(self):
+        self.watch_html = download.get(url=self.watch_url)
+        self.vid_info_url = extract.video_info_url(
+            video_id=self.video_id,
+            watch_url=self.watch_url,
+            watch_html=self.watch_html,
+        )
+        self.js_url = extract.js_url(self.watch_html)
+        self.js = download.get(url=self.js_url)
+        self.vid_info = download.get(url=self.vid_info_url)
+        self.player_config = extract.get_ytplayer_config(self.watch_html)
+
+    def build_stream_objects(self, fmt):
+        streams = self.player_config['args'][fmt]
+        for stream in streams:
+            video = Stream(
+                stream=stream,
+                player_config=self.player_config,
+                shared_stream_state=self.shared_stream_state,
             )
-            pprint(videos)
-            sys.exit(1)
-
-    elif args.ext:
-        # There are several videos with the same extension
-        videos = yt.filter(extension=args.ext)
-        # Check if we have a video
-        if not videos:
-            print('There are no videos in the specified format.')
-            sys.exit(1)
-        # Select the highest resolution one
-        vid = max(videos)
-    elif args.res:
-        # There might be several videos in the same resolution
-        videos = yt.filter(resolution=args.res)
-        # Check if we have a video
-        if not videos:
-            print(
-                'There are no videos in the specified in the specified '
-                'resolution.',
-            )
-            sys.exit(1)
-        # Select the highest resolution one
-        vid = max(videos)
-    else:
-        # If nothing is specified get the highest resolution one
-        print_available_vids(videos)
-        while True:
-            try:
-                choice = int(input('Enter choice: '))
-                vid = yt.get(*videos[choice])
-                break
-            except (ValueError, IndexError):
-                print('Requires an integer in range 0-{}'
-                      .format(len(videos) - 1))
-            except KeyboardInterrupt:
-                sys.exit(2)
-
-    try:
-        vid.download(path=args.path, on_progress=print_status)
-    except KeyboardInterrupt:
-        print('Download interrupted.')
-        sys.exit(1)
+            self.fmt_streams.append(video)
 
+    @property
+    def streams(self):
+        """Interface to query non-dash streams."""
+        return StreamQuery([s for s in self.fmt_streams if not s.is_dash])
 
-def print_available_vids(videos):
-    formatString = '{:<2} {:<15} {:<15}'
-    print(formatString.format('', 'Resolution', 'Extension'))
-    print('-' * 28)
-    print('\n'.join([
-        formatString.format(index, *formatTuple)
-        for index, formatTuple in enumerate(videos)
-    ]))
+    @property
+    def dash_streams(self):
+        """Interface to query dash streams."""
+        return StreamQuery([s for s in self.fmt_streams if s.is_dash])
 
+    def register_on_progress_callback(self, fn):
+        self.shared_stream_state['on_progress'] = fn
 
-if __name__ == '__main__':
-    main()
+    def register_on_complete_callback(self, fn):
+        self.shared_stream_state['on_complete'] = fn

pytube/api.py

@@ -1,475 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-from __future__ import absolute_import
-
-import json
-import logging
-import re
-import warnings
-from collections import defaultdict
-
-from .compat import parse_qs
-from .compat import unquote
-from .compat import urlopen
-from .compat import urlparse
-from .exceptions import AgeRestricted
-from .exceptions import CipherError
-from .exceptions import DoesNotExist
-from .exceptions import MultipleObjectsReturned
-from .exceptions import PytubeError
-from .jsinterp import JSInterpreter
-from .models import Video
-from .utils import safe_filename
-
-log = logging.getLogger(__name__)
-
-# YouTube quality and codecs id map.
-QUALITY_PROFILES = {
-    # flash
-    5: ('flv', '240p', 'Sorenson H.263', 'N/A', '0.25', 'MP3', '64'),
-
-    # 3gp
-    17: ('3gp', '144p', 'MPEG-4 Visual', 'Simple', '0.05', 'AAC', '24'),
-    36: ('3gp', '240p', 'MPEG-4 Visual', 'Simple', '0.17', 'AAC', '38'),
-
-    # webm
-    43: ('webm', '360p', 'VP8', 'N/A', '0.5', 'Vorbis', '128'),
-    100: ('webm', '360p', 'VP8', '3D', 'N/A', 'Vorbis', '128'),
-
-    # mpeg4
-    18: ('mp4', '360p', 'H.264', 'Baseline', '0.5', 'AAC', '96'),
-    22: ('mp4', '720p', 'H.264', 'High', '2-2.9', 'AAC', '192'),
-    82: ('mp4', '360p', 'H.264', '3D', '0.5', 'AAC', '96'),
-    83: ('mp4', '240p', 'H.264', '3D', '0.5', 'AAC', '96'),
-    84: ('mp4', '720p', 'H.264', '3D', '2-2.9', 'AAC', '152'),
-    85: ('mp4', '1080p', 'H.264', '3D', '2-2.9', 'AAC', '152'),
-
-    160: ('mp4', '144p', 'H.264', 'Main', '0.1', '', ''),
-    133: ('mp4', '240p', 'H.264', 'Main', '0.2-0.3', '', ''),
-    134: ('mp4', '360p', 'H.264', 'Main', '0.3-0.4', '', ''),
-    135: ('mp4', '480p', 'H.264', 'Main', '0.5-1', '', ''),
-    136: ('mp4', '720p', 'H.264', 'Main', '1-1.5', '', ''),
-    298: ('mp4', '720p HFR', 'H.264', 'Main', '3-3.5', '', ''),
-
-    137: ('mp4', '1080p', 'H.264', 'High', '2.5-3', '', ''),
-    299: ('mp4', '1080p HFR', 'H.264', 'High', '5.5', '', ''),
-    264: ('mp4', '2160p-2304p', 'H.264', 'High', '12.5-16', '', ''),
-    266: ('mp4', '2160p-4320p', 'H.264', 'High', '13.5-25', '', ''),
-
-    242: ('webm', '240p', 'vp9', 'n/a', '0.1-0.2', '', ''),
-    243: ('webm', '360p', 'vp9', 'n/a', '0.25', '', ''),
-    244: ('webm', '480p', 'vp9', 'n/a', '0.5', '', ''),
-    247: ('webm', '720p', 'vp9', 'n/a', '0.7-0.8', '', ''),
-    248: ('webm', '1080p', 'vp9', 'n/a', '1.5', '', ''),
-    271: ('webm', '1440p', 'vp9', 'n/a', '9', '', ''),
-    278: ('webm', '144p 15 fps', 'vp9', 'n/a', '0.08', '', ''),
-    302: ('webm', '720p HFR', 'vp9', 'n/a', '2.5', '', ''),
-    303: ('webm', '1080p HFR', 'vp9', 'n/a', '5', '', ''),
-    308: ('webm', '1440p HFR', 'vp9', 'n/a', '10', '', ''),
-    313: ('webm', '2160p', 'vp9', 'n/a', '13-15', '', ''),
-    315: ('webm', '2160p HFR', 'vp9', 'n/a', '20-25', '', ''),
-}
-
-# The keys corresponding to the quality/codec map above.
-QUALITY_PROFILE_KEYS = (
-    'extension',
-    'resolution',
-    'video_codec',
-    'profile',
-    'video_bitrate',
-    'audio_codec',
-    'audio_bitrate',
-)
-
-
-class YouTube(object):
-    """Class representation of a single instance of a YouTube session.
-    """
-
-    def __init__(self, url=None):
-        """Initializes YouTube API wrapper.
-
-        :param str url:
-            The url to the YouTube video.
-        """
-        self._filename = None
-        self._video_url = None
-        self._js_cache = None
-        self._videos = []
-        if url:
-            self.from_url(url)
-
-    @property
-    def url(self):
-        """Gets the video url."""
-        return self._video_url
-
-    @url.setter
-    def url(self, url):
-        """Sets the url for the video (This method is deprecated. Use
-        `from_url()` instead).
-
-        :param str url:
-            The url to the YouTube video.
-        """
-        warnings.warn(
-            'url setter deprecated, use `from_url()` '
-            'instead.', DeprecationWarning,
-        )
-        self.from_url(url)
-
-    @property
-    def video_id(self):
-        """Gets the video id by parsing and extracting it from the url."""
-        parts = urlparse(self._video_url)
-        qs = getattr(parts, 'query')
-        if qs:
-            video_id = parse_qs(qs).get('v')
-            if video_id:
-                return video_id.pop()
-
-    @property
-    def filename(self):
-        """Gets the filename of the video.  If it hasn't been defined by the
-        user, the title will instead be used.
-        """
-        if not self._filename:
-            self._filename = safe_filename(self.title)
-            log.debug("generated 'safe' filename: %s", self._filename)
-        return self._filename
-
-    @filename.setter
-    def filename(self, filename):
-        """Sets the filename (This method is deprecated. Use `set_filename()`
-        instead).
-
-        :param str filename:
-            The filename of the video.
-        """
-        warnings.warn(
-            'filename setter deprecated. Use `set_filename()` '
-            'instead.', DeprecationWarning,
-        )
-        self.set_filename(filename)
-
-    def set_filename(self, filename):
-        """Sets the filename of the video.
-
-        :param str filename:
-            The filename of the video.
-        """
-        # TODO: Check if the filename contains the file extension and either
-        # strip it or raise an exception.
-        self._filename = filename
-        if self.get_videos():
-            for video in self.get_videos():
-                video.filename = filename
-        return True
-
-    def get_videos(self):
-        """Gets all videos."""
-        return self._videos
-
-    @property
-    def videos(self):
-        """Gets all videos. (This method is deprecated. Use `get_videos()`
-        instead.
-        """
-        warnings.warn(
-            'videos property deprecated. Use `get_videos()` '
-            'instead.', DeprecationWarning,
-        )
-        return self._videos
-
-    def from_url(self, url):
-        """Sets the url for the video.
-
-        :param str url:
-            The url to the YouTube video.
-        """
-        self._video_url = url
-
-        # Reset the filename and videos list in case the same instance is
-        # reused.
-        self._filename = None
-        self._videos = []
-
-        # Get the video details.
-        video_data = self.get_video_data()
-
-        # Set the title from the title.
-        self.title = video_data.get('args', {}).get('title')
-
-        # Rewrite and add the url to the javascript file, we'll need to fetch
-        # this if YouTube doesn't provide us with the signature.
-        js_partial_url = video_data.get('assets', {}).get('js')
-        if js_partial_url.startswith('//'):
-            js_url = 'http:' + js_partial_url
-        elif js_partial_url.startswith('/'):
-            js_url = 'https://youtube.com' + js_partial_url
-
-        # Just make these easily accessible as variables.
-        stream_map = video_data.get('args', {}).get('stream_map')
-        video_urls = stream_map.get('url')
-
-        # For each video url, identify the quality profile and add it to list
-        # of available videos.
-        for i, url in enumerate(video_urls):
-            log.debug('attempting to get quality profile from url: %s', url)
-            try:
-                itag, quality_profile = self._get_quality_profile_from_url(url)
-                if not quality_profile:
-                    log.warn('unable to identify profile for itag=%s', itag)
-                    continue
-            except (TypeError, KeyError) as e:
-                log.exception('passing on exception %s', e)
-                continue
-
-            # Check if we have the signature, otherwise we'll need to get the
-            # cipher from the js.
-            if 'signature=' not in url:
-                log.debug(
-                    'signature not in url, attempting to resolve the '
-                    'cipher.',
-                )
-                signature = self._get_cipher(stream_map['s'][i], js_url)
-                url = '{0}&signature={1}'.format(url, signature)
-            self._add_video(url, self.filename, **quality_profile)
-        # Clear the cached js. Make sure to keep this at the end of
-        # `from_url()` so we can mock inject the js in unit tests.
-        self._js_cache = None
-
-    def get(self, extension=None, resolution=None, profile=None):
-        """Gets a single video given a file extention (and/or resolution
-        and/or quality profile).
-
-        :param str extention:
-            The desired file extention (e.g.: mp4, flv).
-        :param str resolution:
-            The desired video broadcasting standard (e.g.: 720p, 1080p)
-        :param str profile:
-            The desired quality profile (this is subjective, I don't recommend
-            using it).
-        """
-        result = []
-        for v in self.get_videos():
-            if extension and v.extension != extension:
-                continue
-            elif resolution and v.resolution != resolution:
-                continue
-            elif profile and v.profile != profile:
-                continue
-            else:
-                result.append(v)
-        matches = len(result)
-        if matches <= 0:
-            raise DoesNotExist('No videos met this criteria.')
-        elif matches == 1:
-            return result[0]
-        else:
-            raise MultipleObjectsReturned('Multiple videos met this criteria.')
-
-    def filter(self, extension=None, resolution=None, profile=None):
-        """Gets a filtered list of videos given a file extention and/or
-        resolution and/or quality profile.
-
-        :param str extention:
-            The desired file extention (e.g.: mp4, flv).
-        :param str resolution:
-            The desired video broadcasting standard (e.g.: 720p, 1080p)
-        :param str profile:
-            The desired quality profile (this is subjective, I don't recommend
-            using it).
-        """
-        results = []
-        for v in self.get_videos():
-            if extension and v.extension != extension:
-                continue
-            elif resolution and v.resolution != resolution:
-                continue
-            elif profile and v.profile != profile:
-                continue
-            else:
-                results.append(v)
-        return results
-
-    def get_video_data(self):
-        """Gets the page and extracts out the video data."""
-        # Reset the filename incase it was previously set.
-        self.title = None
-        response = urlopen(self.url)
-        if not response:
-            raise PytubeError('Unable to open url: {0}'.format(self.url))
-
-        html = response.read()
-        if isinstance(html, str):
-            restriction_pattern = 'og:restrictions:age'
-        else:
-            restriction_pattern = bytes('og:restrictions:age', 'utf-8')
-
-        if restriction_pattern in html:
-            raise AgeRestricted(
-                'Age restricted video. Unable to download '
-                'without being signed in.',
-            )
-
-        # Extract out the json data from the html response body.
-        json_object = self._get_json_data(html)
-
-        # Here we decode the stream map and bundle it into the json object. We
-        # do this just so we just can return one object for the video data.
-        encoded_stream_map = json_object.get('args', {}).get(
-            'url_encoded_fmt_stream_map',
-        )
-        json_object['args']['stream_map'] = self._parse_stream_map(
-            encoded_stream_map,
-        )
-        return json_object
-
-    def _parse_stream_map(self, blob):
-        """A modified version of `urlparse.parse_qs` that's able to decode
-        YouTube's stream map.
-
-        :param str blob:
-            An encoded blob of text containing the stream map data.
-        """
-        dct = defaultdict(list)
-
-        # Split the comma separated videos.
-        videos = blob.split(',')
-
-        # Unquote the characters and split to parameters.
-        videos = [video.split('&') for video in videos]
-
-        # Split at the equals sign so we can break this key value pairs and
-        # toss it into a dictionary.
-        for video in videos:
-            for kv in video:
-                key, value = kv.split('=')
-                dct[key].append(unquote(value))
-        log.debug('decoded stream map: %s', dct)
-        return dct
-
-    def _get_json_data(self, html):
-        """Extract the json out from the html.
-
-        :param str html:
-            The raw html of the page.
-        """
-        # 18 represents the length of "ytplayer.config = ".
-        if isinstance(html, str):
-            json_start_pattern = 'ytplayer.config = '
-        else:
-            json_start_pattern = bytes('ytplayer.config = ', 'utf-8')
-        pattern_idx = html.find(json_start_pattern)
-        # In case video is unable to play
-        if(pattern_idx == -1):
-            raise PytubeError('Unable to find start pattern.')
-        start = pattern_idx + 18
-        html = html[start:]
-
-        offset = self._get_json_offset(html)
-        if not offset:
-            raise PytubeError('Unable to extract json.')
-        if isinstance(html, str):
-            json_content = json.loads(html[:offset])
-        else:
-            json_content = json.loads(html[:offset].decode('utf-8'))
-
-        return json_content
-
-    def _get_json_offset(self, html):
-        """Find where the json object starts.
-
-        :param str html:
-            The raw html of the YouTube page.
-        """
-        unmatched_brackets_num = 0
-        index = 1
-        for i, ch in enumerate(html):
-            if isinstance(ch, int):
-                ch = chr(ch)
-            if ch == '{':
-                unmatched_brackets_num += 1
-            elif ch == '}':
-                unmatched_brackets_num -= 1
-                if unmatched_brackets_num == 0:
-                    break
-        else:
-            raise PytubeError('Unable to determine json offset.')
-        return index + i
-
-    def _get_cipher(self, signature, url):
-        """Gets the signature using the cipher.
-
-        :param str signature:
-            The url signature.
-        :param str url:
-            The url of the javascript file.
-        """
-        reg_exp = re.compile(r'"signature",\s?([a-zA-Z0-9$]+)\(')
-        # Cache the js since `_get_cipher()` will be called for each video.
-        if not self._js_cache:
-            response = urlopen(url)
-            if not response:
-                raise PytubeError('Unable to open url: {0}'.format(self.url))
-            self._js_cache = response.read().decode()
-        try:
-            matches = reg_exp.search(self._js_cache)
-            if matches:
-                # Return the first matching group.
-                func = next(g for g in matches.groups() if g is not None)
-            # Load js into JS Python interpreter.
-            jsi = JSInterpreter(self._js_cache)
-            initial_function = jsi.extract_function(func)
-            return initial_function([signature])
-        except Exception as e:
-            raise CipherError("Couldn't cipher the signature. Maybe YouTube "
-                              'has changed the cipher algorithm. Notify this '
-                              'issue on GitHub: {0}'.format(e))
-        return False
-
-    def _get_quality_profile_from_url(self, video_url):
-        """Gets the quality profile given a video url. Normally we would just
-        use `urlparse` since itags are represented as a get parameter, but
-        YouTube doesn't pass a properly encoded url.
-
-        :param str video_url:
-            The malformed url-encoded video_url.
-        """
-        reg_exp = re.compile('itag=(\d+)')
-        itag = reg_exp.findall(video_url)
-        if itag and len(itag) == 1:
-            itag = int(itag[0])
-            # Given an itag, refer to the YouTube quality profiles to get the
-            # properties (media type, resolution, etc.) of the video.
-            quality_profile = QUALITY_PROFILES.get(itag)
-            if not quality_profile:
-                return itag, None
-            # Here we just combine the quality profile keys to the
-            # corresponding quality profile, referenced by the itag.
-            return itag, dict(list(zip(QUALITY_PROFILE_KEYS, quality_profile)))
-        if not itag:
-            raise PytubeError('Unable to get encoding profile, no itag found.')
-        elif len(itag) > 1:
-            log.warn('Multiple itags found: %s', itag)
-            raise PytubeError(
-                'Unable to get encoding profile, multiple itags '
-                'found.',
-            )
-        return False
-
-    def _add_video(self, url, filename, **kwargs):
-        """Adds new video object to videos.
-
-        :param str url:
-            The signed url to the video.
-        :param str filename:
-            The filename for the video.
-        :param kwargs:
-            Additional properties to set for the video object.
-        """
-        video = Video(url, filename, **kwargs)
-        self._videos.append(video)
-        self._videos.sort()
-        return True

pytube/cipher.py

@@ -0,0 +1,162 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.cipher
+~~~~~~~~~~~~~
+
+"""
+import re
+from itertools import chain
+
+from pytube.helpers import memoize
+
+
+def get_initial_function_name(js):
+    """Extracts the name of the function responsible for computing the signature.
+    """
+    # c&&d.set("signature", EE(c));
+    pattern = r'"signature",\s?([a-zA-Z0-9$]+)\('
+    regex = re.compile(pattern)
+    return (
+        regex
+        .search(js)
+        .group(1)
+    )
+
+
+def get_transform_plan(js):
+    """Extracts the "transform plan", that is, the functions the original
+    signature is passed through to decode the actual signature.
+
+    Sample Output:
+    ~~~~~~~~~~~~~~
+    ['DE.AJ(a,15)',
+     'DE.VR(a,3)',
+     'DE.AJ(a,51)',
+     'DE.VR(a,3)',
+     'DE.kT(a,51)',
+     'DE.kT(a,8)',
+     'DE.VR(a,3)',
+     'DE.kT(a,21)']
+    """
+    name = re.escape(get_initial_function_name(js))
+    pattern = r'%s=function\(\w\){[a-z=\.\(\"\)]*;(.*);(?:.+)}' % name
+    regex = re.compile(pattern)
+    return (
+        regex
+        .search(js)
+        .group(1)
+        .split(';')
+    )
+
+
+def get_transform_object(js, var):
+    """Extracts the "transform object" which contains the function definitions
+    referenced in the "transform plan". The ``var`` argument is the obfuscated
+    variable name which contains these functions, for example, given the
+    function call ``DE.AJ(a,15)`` returned by the transform plan, "DE" would be
+    the var.
+
+    Sample Output:
+    ~~~~~~~~~~~~~~
+    ['AJ:function(a){a.reverse()}',
+     'VR:function(a,b){a.splice(0,b)}',
+     'kT:function(a,b){var c=a[0];a[0]=a[b%a.length];a[b]=c}']
+
+    """
+    pattern = r'var %s={(.*?)};' % re.escape(var)
+    regex = re.compile(pattern, re.DOTALL)
+    return (
+        regex
+        .search(js)
+        .group(1)
+        .replace('\n', ' ')
+        .split(', ')
+    )
+
+
+def get_transform_map(js, var):
+    transform_object = get_transform_object(js, var)
+    mapper = {}
+    for obj in transform_object:
+        # AJ:function(a){a.reverse()} => AJ, function(a){a.reverse()}
+        name, function = obj.split(':', 1)
+        fn = map_functions(function)
+        mapper[name] = fn
+    return mapper
+
+
+def reverse(arr, b):
+    """Immutable equivalent to function(a){a.reverse()}.
+
+    Example usage:
+    ~~~~~~~~~~~~~~
+    >>> reverse([1, 2, 3, 4])
+    [4, 3, 2, 1]
+    """
+    return arr[::-1]
+
+
+def splice(arr, b):
+    """Immutable equivalent to function(a,b){a.splice(0,b)}.
+
+    Example usage:
+    ~~~~~~~~~~~~~~
+    >>> splice([1, 2, 3, 4], 2)
+    [1, 2]
+    """
+    return arr[:b] + arr[b * 2:]
+
+
+def swap(arr, b):
+    """Immutable equivalent to:
+    function(a,b){var c=a[0];a[0]=a[b%a.length];a[b]=c}.
+
+    Example usage:
+    ~~~~~~~~~~~~~~
+    >>> swap([1, 2, 3, 4], 2)
+    [3, 2, 1, 4]
+    """
+    r = b % len(arr)
+    return list(chain([arr[r]], arr[1:r], [arr[0]], arr[r + 1:]))
+
+
+def map_functions(js_func):
+    """Maps the javascript function to its Python equivalent.
+    """
+    mapper = (
+        # function(a){a.reverse()}
+        ('{\w\.reverse\(\)}', reverse),
+        # function(a,b){a.splice(0,b)}
+        ('{\w\.splice\(0,\w\)}', splice),
+        # function(a,b){var c=a[0];a[0]=a[b%a.length];a[b]=c}
+        ('{var\s\w=\w\[0\];\w\[0\]=\w\[\w\%\w.length\];\w\[\w\]=\w}', swap),
+    )
+
+    for pattern, fn in mapper:
+        if re.search(pattern, js_func):
+            return fn
+    # TODO(nficano): raise error
+
+
+def parse_function(js_func):
+    pattern = r'\w+\.(\w+)\(\w,(\d+)\)'
+    regex = re.compile(pattern)
+    return (
+        regex
+        .search(js_func)
+        .groups()
+    )
+
+
+@memoize
+def get_signature(js, signature):
+    tplan = get_transform_plan(js)
+    # DE.AJ(a,15) => DE, AJ(a,15)
+    var, _ = tplan[0].split('.')
+    tmap = get_transform_map(js, var)
+    signature = [s for s in signature]
+
+    for js_func in tplan:
+        name, argument = parse_function(js_func)
+        signature = tmap[name](signature, int(argument))
+    return ''.join(signature)

pytube/cli.py

@@ -0,0 +1,92 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.cli
+~~~~~~~~~~
+
+A simple command line application to download youtube videos.
+
+"""
+from __future__ import print_function
+
+import argparse
+import os
+import sys
+
+from youtube import YouTube
+
+
+def main():
+    """A simple command line application to download youtube videos."""
+    parser = argparse.ArgumentParser(description=main.__doc__)
+    parser.add_argument('url', help='The YouTube /watch url', nargs='?')
+    parser.add_argument(
+        '--itag', type=int, help=(
+            'The itag for the desired stream'
+        ),
+    )
+    parser.add_argument(
+        '-l', '--list', action='store_true', help=(
+            'The list option causes pytube cli to return a list of streams '
+            'available to download'
+        ),
+    )
+    args = parser.parse_args()
+    if not args.url:
+        parser.print_help()
+        exit(1)
+    if args.list:
+        display_streams(args.url)
+    elif args.itag:
+        download(args.url, args.itag)
+
+
+def _get_terminal_size():
+    """Returns the terminal size in rows and columns."""
+    rows, columns = os.popen('stty size', 'r').read().split()
+    return int(rows), int(columns)
+
+
+def _render_progress_bar(bar, percent):
+    text = ' ↳ |{bar}| {percent}%\r'.format(bar=bar, percent=percent)
+    sys.stdout.write(text)
+    sys.stdout.flush()
+
+
+def display_progress_bar(count, total, ch='█', scale=0.55):
+    _, columns = _get_terminal_size()
+    max_width = int(columns * scale)
+
+    filled = int(round(max_width * count / float(total)))
+    remaining = max_width - filled
+    bar = ch * filled + ' ' * remaining
+    percent = round(100.0 * count / float(total), 1)
+    _render_progress_bar(bar, percent)
+
+
+def on_progress(stream, file_handle, bytes_remaining):
+    total = stream.filesize
+    count = total - bytes_remaining
+    display_progress_bar(count, total)
+
+
+def download(url, itag):
+    # TODO(nficano): allow download target to be specified
+    # TODO(nficano): allow dash itags to be selected
+    yt = YouTube(url, on_progress_callback=on_progress)
+    stream = yt.streams.get(itag)
+    print('\n{fn} | {fs} bytes'.format(
+        fn=stream.default_filename,
+        fs=stream.filesize,
+    ))
+    stream.download()
+    sys.stdout.write('\n')
+
+
+def display_streams(url):
+    yt = YouTube(url)
+    for stream in yt.streams.all():
+        print(stream)
+
+
+if __name__ == '__main__':
+    main()

pytube/compat.py

@@ -1,14 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-# flake8: noqa
-import sys
-
-PY2 = sys.version_info[0] == 2
-PY3 = sys.version_info[0] == 3
-
-if PY2:
-    from urllib2 import urlopen
-    from urlparse import urlparse, parse_qs, unquote
-if PY3:
-    from urllib.parse import urlparse, parse_qs, unquote
-    from urllib.request import urlopen

pytube/download.py

@@ -0,0 +1,28 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.download
+~~~~~~~~~~~~~~~
+
+"""
+from urllib.request import urlopen
+
+import requests
+
+
+def get(url):
+    response = requests.get(url)
+    return response.text
+
+
+def headers(url):
+    response = urlopen(url)
+    return dict(response.info().items())
+
+
+def stream(url, chunk_size=8 * 1024):
+    response = urlopen(url)
+    while True:
+        buf = response.read(chunk_size)
+        if not buf:
+            break
+        yield buf

pytube/exceptions.py

@@ -1,33 +0,0 @@
-class MultipleObjectsReturned(Exception):
-    """The query returned multiple objects when only one was expected.
-    """
-    pass
-
-
-class ExtractorError(Exception):
-    """Something specific to the js parser failed.
-    """
-
-
-class PytubeError(Exception):
-    """Something specific to the wrapper failed.
-    """
-    pass
-
-
-class CipherError(Exception):
-    """The _cipher method returned an error.
-    """
-    pass
-
-
-class DoesNotExist(Exception):
-    """The requested video does not exist.
-    """
-    pass
-
-
-class AgeRestricted(Exception):
-    """The requested video has an age restriction.
-    """
-    pass

pytube/extract.py

@@ -0,0 +1,58 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.extract
+~~~~~~~~~~~~~~
+
+"""
+import json
+import re
+from urllib.parse import parse_qsl
+from urllib.parse import quote
+from urllib.parse import urlencode
+
+from pytube.helpers import memoize
+
+
+def video_id(url):
+    pattern = re.compile(r'.*(?:v=|/v/|^)(?P<id>[^&]*)')
+    return pattern.search(url).group(1)
+
+
+def watch_url(video_id):
+    return (
+        'http://www.youtube.com/watch?v={video_id}'
+        .format(video_id=video_id)
+    )
+
+
+def video_info_url(video_id, watch_url, watch_html):
+    # TODO(nficano): not sure what t represents.
+    t = re.compile('\W[\'"]?t[\'"]?: ?[\'"](.+?)[\'"]')
+    params = urlencode({
+        'video_id': video_id,
+        'el': '$el',
+        'ps': 'default',
+        'eurl': quote(watch_url),
+        'hl': 'en_US',
+        't': quote(t.search(watch_html).group(0)),
+    })
+    return (
+        'https://www.youtube.com/get_video_info?{params}'
+        .format(params=params)
+    )
+
+
+def js_url(watch_html):
+    ytplayer_config = get_ytplayer_config(watch_html)
+    base_js = ytplayer_config['assets']['js']
+    return 'https://youtube.com{base_js}'.format(base_js=base_js)
+
+
+@memoize
+def get_ytplayer_config(watch_html):
+    pattern = re.compile(r';ytplayer\.config\s*=\s*({.*?});')
+    return json.loads(pattern.search(watch_html).group(1))
+
+
+def decode_video_info(video_info):
+    return {k: v for k, v in parse_qsl(video_info)}

pytube/helpers.py

@@ -0,0 +1,51 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.helpers
+~~~~~~~~~~~~~~
+
+Various helper functions implemented by pytube.
+
+"""
+import functools
+import re
+
+
+def truncate(text, max_length=200):
+    return text[:max_length].rsplit(' ', 0)[0]
+
+
+def safe_filename(text, max_length=200):
+    """Sanitizes filenames for many operating systems."""
+    output_text = text
+
+    output_text = (
+        text
+        .replace('_', ' ')
+        .replace(':', ' -')
+    )
+
+    # NTFS forbids filenames containing characters in range 0-31 (0x00-0x1F)
+    ntfs_illegal_chars = [chr(i) for i in range(0, 31)]
+
+    # Removing these SHOULD make most filename safe for a wide range of
+    # operating systems.
+    misc_illegal_chars = [
+        '\"', '\#', '\$', '\%', '\'', '\*', '\,', '\.', '\/', '\:',
+        '\;', '\<', '\>', '\?', '\\', '\^', '\|', '\~', '\\\\',
+    ]
+    pattern = '|'.join(ntfs_illegal_chars + misc_illegal_chars)
+    forbidden_chars = re.compile(pattern, re.UNICODE)
+    filename = forbidden_chars.sub('', output_text)
+    return truncate(filename)
+
+
+def memoize(func):
+    cache = func.cache = {}
+
+    @functools.wraps(func)
+    def wrapper(*args, **kwargs):
+        key = str(args) + str(kwargs)
+        if key not in cache:
+            cache[key] = func(*args, **kwargs)
+        return cache[key]
+    return wrapper

pytube/itags.py

@@ -0,0 +1,100 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.itags
+~~~~~~~~~~~~
+
+"""
+
+ITAGS = {
+    5: ('240p', '64kbps', 'H.263', None, 30),
+    6: ('270p', '64kbps', 'H.263', None, 30),
+    13: ('144p', None, 'mp4v', None, 30),
+    17: ('144p', '24kbps', 'mp4v', None, 30),
+    18: ('360p', '96kbps', 'H.264', None, 30),
+    22: ('720p', '192kbps', 'H.264', None, 30),
+    34: ('360p', '128kbps', 'H.264', None, 30),
+    35: ('480p', '128kbps', 'H.264', None, 30),
+    36: ('240p', None, 'mp4v', None, 30),
+    37: ('1080p', '192kbps', 'H.264', None, 30),
+    38: ('3072p', '192kbps', 'H.264', None, 30),
+    43: ('360p', '128kbps', 'VP8', None, 30),
+    44: ('480p', '128kbps', 'VP8', None, 30),
+    45: ('720p', '192kbps', 'VP8', None, 30),
+    46: ('1080p', '192kbps', 'VP8', None, 30),
+    59: ('480p', '128kbps', 'H.264', None, 30),
+    78: ('480p', '128kbps', 'H.264', None, 30),
+    82: ('360p', '128kbps', 'H.264', '3D', 30),
+    83: ('480p', '128kbps', 'H.264', '3D', 30),
+    84: ('720p', '192kbps', 'H.264', '3D', 30),
+    85: ('1080p', '192kbps', 'H.264', '3D', 30),
+    91: ('144p', '48kbps', 'H.264', 'HLS', 30),
+    92: ('240p', '48kbps', 'H.264', 'HLS', 30),
+    93: ('360p', '128kbps', 'H.264', 'HLS', 30),
+    94: ('480p', '128kbps', 'H.264', 'HLS', 30),
+    95: ('720p', '256kbps', 'H.264', 'HLS', 30),
+    96: ('1080p', '256kbps', 'H.264', 'HLS', 30),
+    100: ('360p', '128kbps', 'VP8', '3D', 30),
+    101: ('480p', '192kbps', 'VP8', '3D', 30),
+    102: ('720p', '192kbps', 'VP8', '3D', 30),
+    132: ('240p', '48kbps', 'H.264', 'HLS', 30),
+    151: ('720p', '24kbps', 'H.264', 'HLS', 30),
+
+    # DASH Video
+    133: ('240p', None, 'H.264', 'video', 30),
+    134: ('360p', None, 'H.264', 'video', 30),
+    135: ('480p', None, 'H.264', 'video', 30),
+    136: ('720p', None, 'H.264', 'video', 30),
+    137: ('1080p', None, 'H.264', 'video', 30),
+    138: ('2160p', None, 'H.264', 'video', 30),
+    160: ('144p', None, 'H.264', 'video', 30),
+    167: ('360p', None, 'VP8', 'video', 30),
+    168: ('480p', None, 'VP8', 'video', 30),
+    169: ('720p', None, 'VP8', 'video', 30),
+    170: ('1080p', None, 'VP8', 'video', 30),
+    212: ('480p', None, 'H.264', 'video', 30),
+    218: ('480p', None, 'VP8', 'video', 30),
+    219: ('480p', None, 'VP8', 'video', 30),
+    242: ('240p', None, 'VP9', 'video', 30),
+    243: ('360p', None, 'VP9', 'video', 30),
+    244: ('480p', None, 'VP9', 'video', 30),
+    245: ('480p', None, 'VP9', 'video', 30),
+    246: ('480p', None, 'VP9', 'video', 30),
+    247: ('720p', None, 'VP9', 'video', 30),
+    248: ('1080p', None, 'VP9', 'video', 30),
+    264: ('144p', None, 'H.264', 'video', 30),
+    266: ('2160p', None, 'H.264', 'video', 30),
+    271: ('144p',  None, 'VP9', 'video', 30),
+    272: ('2160p', None, 'VP9', 'video', 30),
+    278: ('144p', None, 'VP9', 'video', 30),
+    298: ('720p', None, 'H.264', 'video', 60),
+    299: ('1080p', None, 'H.264', 'video', 60),
+    302: ('720p', None, 'VP9', 'video', 60),
+    303: ('1080p', None, 'VP9', 'video', 60),
+    308: ('1440p', None, 'VP9', 'video', 60),
+    313: ('2160p', None, 'VP9', 'video', 30),
+    315: ('2160p', None, 'VP9', 'video', 60),
+
+    # DASH Audio
+    139: (None, '48kbps', None, 'audio', None),
+    140: (None, '128kbps', None, 'audio', None),
+    141: (None, '256kbps', None, 'audio', None),
+    171: (None, '128kbps', None, 'audio', None),
+    172: (None, '256kbps', None, 'audio', None),
+    249: (None, '50kbps', None, 'audio', None),
+    250: (None, '70kbps', None, 'audio', None),
+    251: (None, '160kbps', None, 'audio', None),
+    256: (None, None, None, 'audio', None),
+    258: (None, None, None, 'audio', None),
+    325: (None, None, None, 'audio', None),
+    328: (None, None, None, 'audio', None),
+}
+
+
+def get_format_profile(itag):
+    res, bitrate, vcodec, note, fps = ITAGS[int(itag)]
+    return {
+        'resolution': res,
+        'abr': bitrate,
+        'fmt_note': note,
+        'fps': fps,
+    }

pytube/jsinterp.py

@@ -1,281 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-import json
-import operator
-import re
-
-from .exceptions import ExtractorError
-
-_OPERATORS = [
-    ('|', operator.or_),
-    ('^', operator.xor),
-    ('&', operator.and_),
-    ('>>', operator.rshift),
-    ('<<', operator.lshift),
-    ('-', operator.sub),
-    ('+', operator.add),
-    ('%', operator.mod),
-    ('/', operator.truediv),
-    ('*', operator.mul),
-]
-_ASSIGN_OPERATORS = [(op + '=', opfunc) for op, opfunc in _OPERATORS]
-_ASSIGN_OPERATORS.append(('=', lambda cur, right: right))
-
-_NAME_RE = r'[a-zA-Z_$][a-zA-Z_$0-9]*'
-
-
-class JSInterpreter(object):
-    def __init__(self, code, objects=None):
-        if objects is None:
-            objects = {}
-        self.code = code
-        self._functions = {}
-        self._objects = objects
-
-    def interpret_statement(self, stmt, local_vars, allow_recursion=100):
-        if allow_recursion < 0:
-            raise ExtractorError('Recursion limit reached')
-
-        should_abort = False
-        stmt = stmt.lstrip()
-        stmt_m = re.match(r'var\s', stmt)
-        if stmt_m:
-            expr = stmt[len(stmt_m.group(0)):]
-        else:
-            return_m = re.match(r'return(?:\s+|$)', stmt)
-            if return_m:
-                expr = stmt[len(return_m.group(0)):]
-                should_abort = True
-            else:
-                # Try interpreting it as an expression
-                expr = stmt
-
-        v = self.interpret_expression(expr, local_vars, allow_recursion)
-        return v, should_abort
-
-    def interpret_expression(self, expr, local_vars, allow_recursion):
-        expr = expr.strip()
-
-        if expr == '':  # Empty expression
-            return None
-
-        if expr.startswith('('):
-            parens_count = 0
-            for m in re.finditer(r'[()]', expr):
-                if m.group(0) == '(':
-                    parens_count += 1
-                else:
-                    parens_count -= 1
-                    if parens_count == 0:
-                        sub_expr = expr[1:m.start()]
-                        sub_result = self.interpret_expression(
-                            sub_expr, local_vars, allow_recursion,
-                        )
-                        remaining_expr = expr[m.end():].strip()
-                        if not remaining_expr:
-                            return sub_result
-                        else:
-                            expr = json.dumps(sub_result) + remaining_expr
-                        break
-            else:
-                raise ExtractorError('Premature end of parens in %r' % expr)
-
-        for op, opfunc in _ASSIGN_OPERATORS:
-            m = re.match(
-                r'''(?x)
-                (?P<out>%s)(?:\[(?P<index>[^\]]+?)\])?
-                \s*%s
-                (?P<expr>.*)$''' % (_NAME_RE, re.escape(op)), expr,
-            )
-            if not m:
-                continue
-            right_val = self.interpret_expression(
-                m.group('expr'), local_vars, allow_recursion - 1,
-            )
-
-            if m.groupdict().get('index'):
-                lvar = local_vars[m.group('out')]
-                idx = self.interpret_expression(
-                    m.group('index'), local_vars, allow_recursion,
-                )
-                assert isinstance(idx, int)
-                cur = lvar[idx]
-                val = opfunc(cur, right_val)
-                lvar[idx] = val
-                return val
-            else:
-                cur = local_vars.get(m.group('out'))
-                val = opfunc(cur, right_val)
-                local_vars[m.group('out')] = val
-                return val
-
-        if expr.isdigit():
-            return int(expr)
-
-        var_m = re.match(
-            r'(?!if|return|true|false)(?P<name>%s)$' % _NAME_RE,
-            expr,
-        )
-        if var_m:
-            return local_vars[var_m.group('name')]
-
-        try:
-            return json.loads(expr)
-        except ValueError:
-            pass
-
-        m = re.match(
-            r'(?P<var>%s)\.(?P<member>[^(]+)'
-            '(?:\(+(?P<args>[^()]*)\))?$' % _NAME_RE,
-            expr,
-        )
-        if m:
-            variable = m.group('var')
-            member = m.group('member')
-            arg_str = m.group('args')
-
-            if variable in local_vars:
-                obj = local_vars[variable]
-            else:
-                if variable not in self._objects:
-                    self._objects[variable] = self.extract_object(variable)
-                obj = self._objects[variable]
-
-            if arg_str is None:
-                # Member access
-                if member == 'length':
-                    return len(obj)
-                return obj[member]
-
-            assert expr.endswith(')')
-            # Function call
-            if arg_str == '':
-                argvals = tuple()
-            else:
-                argvals = tuple([
-                    self.interpret_expression(v, local_vars, allow_recursion)
-                    for v in arg_str.split(',')
-                ])
-
-            if member == 'split':
-                assert argvals == ('',)
-                return list(obj)
-            if member == 'join':
-                assert len(argvals) == 1
-                return argvals[0].join(obj)
-            if member == 'reverse':
-                assert len(argvals) == 0
-                obj.reverse()
-                return obj
-            if member == 'slice':
-                assert len(argvals) == 1
-                return obj[argvals[0]:]
-            if member == 'splice':
-                assert isinstance(obj, list)
-                index, howMany = argvals
-                res = []
-                for i in range(index, min(index + howMany, len(obj))):
-                    res.append(obj.pop(index))
-                return res
-
-            return obj[member](argvals)
-
-        m = re.match(
-            r'(?P<in>%s)\[(?P<idx>.+)\]$' % _NAME_RE, expr,
-        )
-        if m:
-            val = local_vars[m.group('in')]
-            idx = self.interpret_expression(
-                m.group('idx'), local_vars, allow_recursion - 1,
-            )
-            return val[idx]
-
-        for op, opfunc in _OPERATORS:
-            m = re.match(r'(?P<x>.+?)%s(?P<y>.+)' % re.escape(op), expr)
-            if not m:
-                continue
-            x, abort = self.interpret_statement(
-                m.group('x'), local_vars, allow_recursion - 1,
-            )
-            if abort:
-                raise ExtractorError(
-                    'Premature left-side return of %s in %r' % (op, expr),
-                )
-            y, abort = self.interpret_statement(
-                m.group('y'), local_vars, allow_recursion - 1,
-            )
-            if abort:
-                raise ExtractorError(
-                    'Premature right-side return of %s in %r' % (op, expr),
-                )
-            return opfunc(x, y)
-
-        m = re.match(
-            r'^(?P<func>%s)\((?P<args>[a-zA-Z0-9_$,]+)\)$' % _NAME_RE, expr,
-        )
-        if m:
-            fname = m.group('func')
-            argvals = tuple([
-                int(v) if v.isdigit() else local_vars[v]
-                for v in m.group('args').split(',')
-            ])
-            if fname not in self._functions:
-                self._functions[fname] = self.extract_function(fname)
-            return self._functions[fname](argvals)
-
-        raise ExtractorError('Unsupported JS expression %r' % expr)
-
-    def extract_object(self, objname):
-        obj = {}
-        obj_m = re.search(
-            (r'(?:var\s+)?%s\s*=\s*\{' % re.escape(objname)) +
-            r'\s*(?P<fields>([a-zA-Z$0-9]+\s*:\s*function\(.*?\)\s*\{.*?\}'
-            r'(?:,\s*)?)*)' + r'\}\s*;',
-            self.code,
-        )
-        fields = obj_m.group('fields')
-        # Currently, it only supports function definitions
-        fields_m = re.finditer(
-            r'(?P<key>[a-zA-Z$0-9]+)\s*:\s*function'
-            r'\((?P<args>[a-z,]+)\){(?P<code>[^}]+)}',
-            fields,
-        )
-        for f in fields_m:
-            argnames = f.group('args').split(',')
-            obj[f.group('key')] = self.build_function(
-                argnames, f.group('code'),
-            )
-
-        return obj
-
-    def extract_function(self, funcname):
-        func_m = re.search(
-            r'''(?x)
-                (?:function\s+%s|[{;,]\s*%s\s*=\s*function|var\s+%s\s*=\s*function)\s*
-                \((?P<args>[^)]*)\)\s*
-                \{(?P<code>[^}]+)\}''' % (
-                re.escape(funcname), re.escape(funcname), re.escape(funcname),
-            ),
-            self.code,
-        )
-        if func_m is None:
-            raise ExtractorError('Could not find JS function %r' % funcname)
-        argnames = func_m.group('args').split(',')
-
-        return self.build_function(argnames, func_m.group('code'))
-
-    def call_function(self, funcname, *args):
-        f = self.extract_function(funcname)
-        return f(args)
-
-    def build_function(self, argnames, code):
-        def resf(args):
-            local_vars = dict(zip(argnames, args))
-            for stmt in code.split(';'):
-                res, abort = self.interpret_statement(stmt, local_vars)
-                if abort:
-                    break
-            return res
-        return resf

pytube/mixins.py

@@ -0,0 +1,31 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.mixins
+~~~~~~~~~~~~~
+
+"""
+from urllib.parse import parse_qsl
+from urllib.parse import unquote
+
+from pytube import cipher
+
+
+def apply(dct, key, fn):
+    dct[key] = fn(dct[key])
+
+
+def apply_cipher(video_info, fmt, js):
+    stream_map = video_info[fmt]
+    for i, stream in enumerate(stream_map):
+        url = stream['url']
+        if 'signature=' in url:
+            continue
+        signature = cipher.get_signature(js, stream['s'])
+        stream_map[i]['url'] = url + '&signature=' + signature
+
+
+def apply_fmt_decoder(video_info, fmt):
+    video_info[fmt] = [
+        {k: unquote(v) for k, v in parse_qsl(i)} for i
+        in video_info[fmt].split(',')
+    ]

pytube/models.py

@@ -1,146 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-import os
-from time import clock
-
-try:
-    from urllib2 import urlopen
-except ImportError:
-    from urllib.request import urlopen
-
-
-class Video(object):
-    """Class representation of a single instance of a YouTube video.
-    """
-
-    def __init__(
-        self, url, filename, extension, resolution=None,
-        video_codec=None, profile=None, video_bitrate=None,
-        audio_codec=None, audio_bitrate=None,
-    ):
-        """Sets-up the video object.
-
-        :param str url:
-            The url of the video. (e.g.: https://youtube.com/watch?v=...)
-        :param str filename:
-            The filename (minus the extention) to save the video.
-        :param str extention:
-            The desired file extention (e.g.: mp4, flv, webm).
-        :param str resolution:
-            *Optional* The broadcasting standard (e.g.: 720p, 1080p).
-        :param str video_codec:
-            *Optional* The codec used to encode the video.
-        :param str profile:
-            *Optional* The arbitrary quality profile.
-        :param str video_bitrate:
-            *Optional* The bitrate of the video over sampling interval.
-        :param str audio_codec:
-            *Optional* The codec used to encode the audio.
-        :param str audio_bitrate:
-            *Optional* The bitrate of the video's audio over sampling interval.
-        """
-        self.url = url
-        self.filename = filename
-        self.extension = extension
-        self.resolution = resolution
-        self.video_codec = video_codec
-        self.profile = profile
-        self.video_bitrate = video_bitrate
-        self.audio_codec = audio_codec
-        self.audio_bitrate = audio_bitrate
-
-    def download(
-        self, path, chunk_size=8 * 1024, on_progress=None,
-        on_finish=None, force_overwrite=False,
-    ):
-        """Downloads the video.
-
-        :param str path:
-            The destination output directory.
-        :param int chunk_size:
-            File size (in bytes) to write to buffer at a time. By default,
-            this is set to 8 bytes.
-        :param func on_progress:
-            *Optional* function to be called every time the buffer is written
-            to. Arguments passed are the bytes recieved, file size, and start
-            datetime.
-        :param func on_finish:
-            *Optional* callback function when download is complete. Arguments
-            passed are the full path to downloaded the file.
-        :param bool force_overwrite:
-            *Optional* force a file overwrite if conflicting one exists.
-        """
-        path = os.path.normpath(path)
-        if not os.path.isdir(path):
-            raise OSError('Make sure path exists.')
-
-        filename = '{0}.{1}'.format(self.filename, self.extension)
-        path = os.path.join(path, filename)
-        # TODO: If it's not a path, this should raise an ``OSError``.
-        # TODO: Move this into cli, this kind of logic probably shouldn't be
-        # handled by the library.
-        if os.path.isfile(path) and not force_overwrite:
-            raise OSError("Conflicting filename:'{0}'".format(self.filename))
-        # TODO: Split up the downloading and OS jazz into separate functions.
-        response = urlopen(self.url)
-        file_size = self.file_size(response)
-        self._bytes_received = 0
-        start = clock()
-        # TODO: Let's get rid of this whole try/except block, let ``OSErrors``
-        # fail loudly.
-        try:
-            with open(path, 'wb') as dst_file:
-                while True:
-                    self._buffer = response.read(chunk_size)
-                    # Check if the buffer is empty (aka no bytes remaining).
-                    if not self._buffer:
-                        if on_finish:
-                            # TODO: We possibly want to flush the
-                            # `_bytes_recieved`` buffer before we call
-                            # ``on_finish()``.
-                            on_finish(path)
-                        break
-
-                    self._bytes_received += len(self._buffer)
-                    dst_file.write(self._buffer)
-                    if on_progress:
-                        on_progress(self._bytes_received, file_size, start)
-
-        except KeyboardInterrupt:
-            # TODO: Move this into the cli, ``KeyboardInterrupt`` handling
-            # should be taken care of by the client. Also you should be allowed
-            # to disable this.
-            os.remove(path)
-            raise KeyboardInterrupt(
-                'Interrupt signal given. Deleting incomplete video.',
-            )
-
-    def file_size(self, response):
-        """Gets the file size from the response
-
-        :param response:
-            Response of a opened url.
-        """
-        meta_data = dict(response.info().items())
-        return int(meta_data.get('Content-Length') or
-                   meta_data.get('content-length'))
-
-    def __repr__(self):
-        """A clean representation of the class instance."""
-        return '<Video: {0} (.{1}) - {2} - {3}>'.format(
-            self.video_codec, self.extension, self.resolution, self.profile,
-        )
-
-    def __lt__(self, other):
-        """The "less than" (lt) method is used for comparing video object to
-        one another. This useful when sorting.
-
-        :param other:
-            The instance of the other video instance for comparison.
-        """
-        if isinstance(other, Video):
-            v1 = '{0} {1}'.format(self.extension, self.resolution)
-            v2 = '{0} {1}'.format(other.extension, other.resolution)
-            return (v1 > v2) - (v1 < v2) < 0

pytube/query.py

@@ -0,0 +1,67 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.query
+~~~~~~~~~~~~
+
+"""
+
+
+class StreamQuery:
+    def __init__(self, fmt_streams):
+        self.fmt_streams = fmt_streams
+        self.itag_index = {int(s.itag): s for s in fmt_streams}
+
+    def filter(
+        self, fps=None, res=None, resolution=None, mime_type=None,
+        type=None, subtype=None, abr=None, bitrate=None,
+        video_codec=None, audio_codec=None,
+        custom_filter_functions=None,
+    ):
+        filters = []
+        if res or resolution:
+            filters.append(lambda s: s.resolution == (res or resolution))
+
+        if fps:
+            filters.append(lambda s: s.fps == fps)
+
+        if mime_type:
+            filters.append(lambda s: s.mime_type == mime_type)
+
+        if type:
+            filters.append(lambda s: s.type == type)
+
+        if subtype:
+            filters.append(lambda s: s.subtype == subtype)
+
+        if abr or bitrate:
+            filters.append(lambda s: s.abr == (abr or bitrate))
+
+        if video_codec:
+            filters.append(lambda s: s.video_codec == video_codec)
+
+        if audio_codec:
+            filters.append(lambda s: s.audio_codec == audio_codec)
+
+        if custom_filter_functions:
+            for fn in custom_filter_functions:
+                filters.append(fn)
+
+        fmt_streams = self.fmt_streams
+        for fn in filters:
+            fmt_streams = list(filter(fn, fmt_streams))
+        return StreamQuery(fmt_streams)
+
+    def get(self, itag):
+        return self.itag_index[itag]
+
+    def first(self):
+        return self.fmt_streams[0]
+
+    def last(self):
+        return self.fmt_streams[-1]
+
+    def count(self):
+        return len(self.fmt_streams)
+
+    def all(self):
+        return self.fmt_streams

pytube/streams.py

@@ -0,0 +1,129 @@
+# -*- coding: utf-8 -*-
+"""
+pytube.streams
+~~~~~~~~~~~~~~
+
+"""
+import os
+import re
+
+from pytube import download
+from pytube.helpers import memoize
+from pytube.helpers import safe_filename
+from pytube.itags import get_format_profile
+
+
+class Stream:
+    def __init__(self, stream, player_config, shared_stream_state):
+        self.shared_stream_state = shared_stream_state
+        self.abr = None
+        self.audio_codec = None
+        self.codecs = None
+        self.fps = None
+        self.itag = None
+        self.mime_type = None
+        self.res = None
+        self.subtype = None
+        self.type = None
+        self.url = None
+        self.video_codec = None
+
+        self.set_attributes_from_dict(stream)
+        self.fmt_profile = get_format_profile(self.itag)
+        self.set_attributes_from_dict(self.fmt_profile)
+
+        self.player_config = player_config
+        self.mime_type, self.codecs = self.parse_type()
+        self.type, self.subtype = self.mime_type.split('/')
+        self.video_codec, self.audio_codec = self.parse_codecs()
+
+    def set_attributes_from_dict(self, dct):
+        for key, val in dct.items():
+            setattr(self, key, val)
+
+    @property
+    def is_dash(self):
+        return len(self.codecs) % 2
+
+    @property
+    def is_audio(self):
+        return self.type == 'audio'
+
+    @property
+    def is_video(self):
+        return self.type == 'video'
+
+    def parse_codecs(self):
+        video = None
+        audio = None
+        if not self.is_dash:
+            video, audio = self.codecs
+        elif self.is_video:
+            video = self.codecs[0]
+        elif self.is_audio:
+            audio = self.codecs[0]
+        return video, audio
+
+    def parse_type(self):
+        regex = re.compile(r'(\w+\/\w+)\;\scodecs=\"([a-zA-Z-0-9.,\s]*)\"')
+        mime_type, codecs = regex.search(self.type).groups()
+        return mime_type, [c.strip() for c in codecs.split(',')]
+
+    @property
+    @memoize
+    def filesize(self):
+        headers = download.headers(self.url)
+        return int(headers['Content-Length'])
+
+    @property
+    def default_filename(self):
+        title = self.player_config['args']['title']
+        filename = safe_filename(title)
+        return '{filename}.{s.subtype}'.format(filename=filename, s=self)
+
+    def on_progress(self, chunk, file_handler, bytes_remaining):
+        file_handler.write(chunk)
+        on_progress = self.shared_stream_state['on_progress']
+        if on_progress:
+            on_progress(self, chunk, bytes_remaining)
+
+    def on_complete(self, fh):
+        on_complete = self.shared_stream_state['on_complete']
+        if on_complete:
+            on_complete(self, fh)
+
+    def download(self, output_path=None):
+        output_path = output_path or os.getcwd()
+        fp = os.path.join(output_path, self.default_filename)
+        bytes_remaining = self.filesize
+        with open(fp, 'wb') as fh:
+            for chunk in download.stream(self.url):
+                bytes_remaining -= len(chunk)
+                self.on_progress(chunk, fh, bytes_remaining)
+
+    def __repr__(self):
+        parts = [
+            'itag="{self.itag}"',
+            'mime_type="{self.mime_type}"',
+        ]
+        if self.is_video:
+            parts.extend([
+                'res="{self.resolution}"',
+                'fps="{self.fps}fps"',
+            ])
+            if not self.is_dash:
+                parts.extend([
+                    'vcodec="{self.video_codec}"',
+                    'acodec="{self.audio_codec}"',
+                ])
+            else:
+                parts.extend([
+                    'vcodec="{self.video_codec}"',
+                ])
+        else:
+            parts.extend([
+                'abr="{self.abr}"',
+                'acodec="{self.audio_codec}"',
+            ])
+        parts = ' '.join(parts)
+        return '<Stream: {parts}>'.format(self=self)

pytube/utils.py

@@ -1,82 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import argparse
-import math
-import re
-from os import path
-from sys import stdout
-from time import clock
-
-
-class FullPaths(argparse.Action):
-    """Expand user- and relative-paths"""
-
-    def __call__(self, parser, namespace, values, option_string=None):
-        setattr(namespace, self.dest, path.abspath(path.expanduser(values)))
-
-
-def truncate(text, max_length=200):
-    return text[:max_length].rsplit(' ', 0)[0]
-
-
-def safe_filename(text, max_length=200):
-    """Sanitizes filenames for many operating systems.
-
-    :params text: The unsanitized pending filename.
-    """
-
-    # Tidy up ugly formatted filenames.
-    text = text.replace('_', ' ')
-    text = text.replace(':', ' -')
-
-    # NTFS forbids filenames containing characters in range 0-31 (0x00-0x1F)
-    ntfs = [chr(i) for i in range(0, 31)]
-
-    # Removing these SHOULD make most filename safe for a wide range of
-    # operating systems.
-    paranoid = [
-        '\"', '\#', '\$', '\%', '\'', '\*', '\,', '\.', '\/', '\:',
-        '\;', '\<', '\>', '\?', '\\', '\^', '\|', '\~', '\\\\',
-    ]
-
-    blacklist = re.compile('|'.join(ntfs + paranoid), re.UNICODE)
-    filename = blacklist.sub('', text)
-    return truncate(filename)
-
-
-def sizeof(byts):
-    """Takes the size of file or folder in bytes and returns size formatted in
-    KB, MB, GB, TB or PB.
-    :params byts:
-        Size of the file in bytes
-    """
-    sizes = ['bytes', 'KB', 'MB', 'GB', 'TB', 'PB']
-    power = int(math.floor(math.log(byts, 1024)))
-    value = int(byts / float(1024**power))
-    suffix = sizes[power] if byts != 1 else 'byte'
-    return '{0} {1}'.format(value, suffix)
-
-
-def print_status(progress, file_size, start):
-    """
-    This function - when passed as `on_progress` to `Video.download` - prints
-    out the current download progress.
-
-    :params progress:
-        The lenght of the currently downloaded bytes.
-    :params file_size:
-        The total size of the video.
-    :params start:
-        The time when started
-    """
-
-    percent_done = int(progress) * 100. / file_size
-    done = int(50 * progress / int(file_size))
-    dt = (clock() - start)
-    if dt > 0:
-        stdout.write('\r  [%s%s][%3.2f%%] %s at %s/s ' %
-                     (
-                         '=' * done, ' ' * (50 - done), percent_done,
-                         sizeof(file_size), sizeof(progress // dt),
-                     ))
-    stdout.flush()

setup.py

@@ -21,7 +21,7 @@ setup(
     license=license,
     entry_points={
         'console_scripts': [
-            'pytube = pytube.__main__:main',
+            'pytube = pytube.cli:main',
         ],
     },
     classifiers=[

tests/conftest.py

@@ -1,24 +0,0 @@
-import mock
-import pytest
-
-from pytube import api
-
-
-@pytest.fixture
-def yt_video():
-    url = 'http://www.youtube.com/watch?v=9bZkp7q19f0'
-    mock_html = None
-    mock_js = None
-
-    with open('tests/mock_data/youtube_gangnam_style.html') as fh:
-        mock_html = fh.read()
-
-    with open('tests/mock_data/youtube_gangnam_style.js') as fh:
-        mock_js = fh.read()
-
-    with mock.patch('pytube.api.urlopen') as urlopen:
-        urlopen.return_value.read.return_value = mock_html
-        yt = api.YouTube()
-        yt._js_cache = mock_js
-        yt.from_url(url)
-        return yt

tests/mock_data/youtube_age_restricted.html

@@ -1,930 +0,0 @@
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-
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-" data-trigger-for="action-panel-share" data-button-toggle="true"><span class="yt-uix-button-content">Share
-</span></button>
-<div class="yt-uix-menu " >  <button class="yt-uix-button yt-uix-button-size-default yt-uix-button-opacity yt-uix-button-has-icon no-icon-markup pause-resume-autoplay yt-uix-menu-trigger yt-uix-tooltip" type="button" onclick=";return false;" title="More actions" aria-pressed="false" id="action-panel-overflow-button" role="button" aria-haspopup="true"><span class="yt-uix-button-content">More</span></button>
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-          <div class="signin-clickcard yt-uix-clickcard-content">
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-
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-    });
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-      'LOADING': "Loading..."    });
-
-      yt.setMsg('SPEEDYG_INFO', "Experiencing interruptions?");
-
-      yt.setMsg({
-    'UNBLOCK_USER': "Are you sure you want to unblock this user?",
-    'BLOCK_USER': "Are you sure you want to block this user?"
-  });
-  yt.setConfig('BLOCK_USER_AJAX_XSRF', 'QUFFLUhqbUVRNm9RcEJoTjBLRmduZE9RRi1fX25pdE4yQXxBQ3Jtc0tub1ZOMUJueXhodlJjVFdrMkU5aEdGa2JjVC1SaTVUZjBEWXRNUWxSdkdoV2ZTcXNCVmt3MnFTclljTExLNU02RmdnaU1Cd0szNlZ2MGlMSHNLUTB0YWVjWjdVWTFSczA1UnNJX3FQYW1GajRyc3J2T2Jpb1VFR28yZ0o0dzZCYVBVWkNuLTlaa0dmSFZKQ3BFaGoyMXpYOTgyUGc=');
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-  });
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-  </script>
-
-
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-    'GUIDED_HELP_LOCALE': "en_US",
-    'GUIDED_HELP_ENVIRONMENT': "prod"
-  });
-yt.setConfig('SPF_SEARCH_BOX', true);yt.setMsg({'ADDTO_CREATE_NEW_PLAYLIST': "Create new playlist\n",'ADDTO_CREATE_PLAYLIST_DYNAMIC_TITLE': "  $dynamic_title_placeholder (create new)\n",'ADDTO_WATCH_LATER': "Watch Later",'ADDTO_WATCH_LATER_ADDED': "Added",'ADDTO_WATCH_LATER_ERROR': "Error",'ADDTO_WATCH_QUEUE': "Watch Queue",'ADDTO_WATCH_QUEUE_ADDED': "Added",'ADDTO_WATCH_QUEUE_ERROR': "Error",'ADDTO_TV_QUEUE': "Queue",'ADS_INSTREAM_FIRST_PLAY': "A video ad is playing.",'ADS_INSTREAM_SKIPPABLE': "Video ad can be skipped.",'ADS_OVERLAY_IMPRESSION': "Ad displayed.",'MASTHEAD_NOTIFICATIONS_LABEL': {"case0": "0 unread notifications.", "case1": "1 unread notification.", "other": "# unread notifications."},'MASTHEAD_NOTIFICATIONS_COUNT_99PLUS': "99+"});    yt.setConfig({
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-    'XSRF_FIELD_NAME': "session_token"
-  });
-
-  yt.setConfig('FEED_PRIVACY_CSS_URL', "\/\/s.ytimg.com\/yts\/cssbin\/www-feedprivacydialog-vflkxdOgv.css");
-
-  yt.setConfig('FEED_PRIVACY_LIGHTBOX_ENABLED', true);
-yt.setConfig({'SBOX_JS_URL': "\/\/s.ytimg.com\/yts\/jsbin\/www-searchbox-vflJyjVvT\/www-searchbox.js",'SBOX_SETTINGS': {"EXPERIMENT_ID":-1,"EXPERIMENT_STR":"","IS_FUSION":false,"PQ":"","PSUGGEST_TOKEN":null,"REQUEST_DOMAIN":"us","HAS_ON_SCREEN_KEYBOARD":false,"REQUEST_LANGUAGE":"en","SESSION_INDEX":null},'SBOX_LABELS': {"SUGGESTION_DISMISS_LABEL":"Remove","SUGGESTION_DISMISSED_LABEL":"Suggestion dismissed"}});  yt.setConfig({
-    'YPC_LOADER_JS': "\/\/s.ytimg.com\/yts\/jsbin\/www-ypc-vflvqGLjW\/www-ypc.js",
-    'YPC_LOADER_CSS': "\/\/s.ytimg.com\/yts\/cssbin\/www-ypc-vflQnp6NN.css",
-    'YPC_SIGNIN_URL': "https:\/\/accounts.google.com\/ServiceLogin?continue=http%3A%2F%2Fwww.youtube.com%2Fsignin%3Fhl%3Den%26app%3Ddesktop%26next%3D%252F%26action_handle_signin%3Dtrue\u0026hl=en\u0026service=youtube\u0026passive=true\u0026uilel=3",
-    'DBLCLK_ADVERTISER_ID': "2542116",
-    'DBLCLK_YPC_ACTIVITY_GROUP': "youtu444",
-    'SUBSCRIPTION_URL': "\/subscription_ajax",
-    'YPC_SWITCH_URL': "\/signin?next=%2F\u0026feature=purchases\u0026skip_identity_prompt=True\u0026action_handle_signin=true",
-    'YPC_GB_LANGUAGE': "en_US",
-    'YPC_GB_URL': "https:\/\/checkout.google.com\/inapp\/lib\/buy.js",
-    'YPC_TRANSACTION_URL': "\/transaction_handler",
-    'YPC_SUBSCRIPTION_URL': "\/ypc_subscription_ajax",
-    'YPC_POST_PURCHASE_URL': "\/ypc_post_purchase_ajax"
-  });
-  yt.setMsg({
-    'YPC_OFFER_OVERLAY': "  \n",
-    'YPC_UNSUBSCRIBE_OVERLAY': "  \n"
-  });
-  yt.setConfig('GOOGLE_HELP_CONTEXT', "watch");
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-  });
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tests/requirements.txt

@@ -1,7 +0,0 @@
-bumpversion==0.5.3
-coveralls==1.0
-flake8==3.3.0
-mock==1.3.0
-pre-commit==0.15.0
-pytest==3.1.3
-pytest-cov==2.4.0

tests/test_pytube.py

@@ -1,130 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-import warnings
-
-import mock
-import pytest
-
-from pytube import api
-from pytube.exceptions import AgeRestricted
-from pytube.exceptions import MultipleObjectsReturned
-from pytube.exceptions import PytubeError
-
-
-def test_video_id(yt_video):
-    """Resolve the video id from url"""
-    assert yt_video.video_id == '9bZkp7q19f0'
-
-
-def test_auto_filename(yt_video):
-    """Generate safe filename based on video title"""
-    expected = u'PSY - GANGNAM STYLE(강남스타일) MV'
-    assert yt_video.filename == expected
-
-
-def test_manual_filename(yt_video):
-    """Manually set a filename"""
-    expected = 'PSY - Gangnam Style'
-    yt_video.set_filename(expected)
-    assert yt_video.filename == expected
-
-
-def test_get_all_videos(yt_video):
-    """Get all videos"""
-    assert len(yt_video.get_videos()) == 6
-
-
-def test_filter_video_by_extension(yt_video):
-    """Filter videos by filetype"""
-    assert len(yt_video.filter('mp4')) == 2
-    assert len(yt_video.filter('3gp')) == 2
-    assert len(yt_video.filter('webm')) == 1
-    assert len(yt_video.filter('flv')) == 1
-
-
-def test_filter_video_by_extension_and_resolution(yt_video):
-    """Filter videos by file extension and resolution"""
-    assert len(yt_video.filter('mp4', '720p')) == 1
-    assert len(yt_video.filter('mp4', '1080p')) == 0
-
-
-def test_filter_video_by_extension_resolution_profile(yt_video):
-    """Filter videos by file extension, resolution, and profile"""
-    assert len(yt_video.filter('mp4', '360p', 'Baseline')) == 1
-
-
-def test_filter_video_by_profile(yt_video):
-    """Filter videos by file profile"""
-    assert len(yt_video.filter(profile='Simple')) == 2
-
-
-def test_filter_video_by_resolution(yt_video):
-    """Filter videos by resolution"""
-    assert len(yt_video.filter(resolution='360p')) == 2
-
-
-def test_get_multiple_items(yt_video):
-    """get(...) cannot return more than one video"""
-    with pytest.raises(MultipleObjectsReturned):
-        yt_video.get(profile='Simple')
-        yt_video.get('mp4')
-        yt_video.get(resolution='240p')
-
-
-def test_age_restricted_video():
-    """Raise exception on age restricted video"""
-    mock_html = None
-
-    with open('tests/mock_data/youtube_age_restricted.html') as fh:
-        mock_html = fh.read()
-
-    with mock.patch('pytube.api.urlopen') as urlopen:
-        urlopen.return_value.read.return_value = mock_html
-        yt = api.YouTube()
-
-        with pytest.raises(AgeRestricted):
-            yt.from_url('http://www.youtube.com/watch?v=nzNgkc6t260')
-
-
-def test_deprecation_warnings_on_url_set(yt_video):
-    """Deprecation warnings get triggered on url set"""
-    with warnings.catch_warnings(record=True) as w:
-        # Cause all warnings to always be triggered.
-        warnings.simplefilter('always')
-        yt_video.url = 'http://www.youtube.com/watch?v=9bZkp7q19f0'
-        assert len(w) == 1
-
-
-def test_deprecation_warnings_on_filename_set(yt_video):
-    """Deprecation warnings get triggered on filename set"""
-    with warnings.catch_warnings(record=True) as w:
-        # Cause all warnings to always be triggered.
-        warnings.simplefilter('always')
-        yt_video.filename = 'Gangnam Style'
-        assert len(w) == 1
-
-
-def test_deprecation_warnings_on_videos_get(yt_video):
-    """Deprecation warnings get triggered on video getter"""
-    with warnings.catch_warnings(record=True) as w:
-        # Cause all warnings to always be triggered.
-        warnings.simplefilter('always')
-        yt_video.videos
-        assert len(w) == 1
-
-
-def test_get_json_offset(yt_video):
-    """Find the offset in the html for where the js starts"""
-    mock_html = None
-
-    with open('tests/mock_data/youtube_gangnam_style.html') as fh:
-        mock_html = fh.read()
-
-    offset = yt_video._get_json_offset(mock_html)
-    assert offset == 312
-
-
-def test_get_json_offset_with_bad_html(yt_video):
-    """Raise exception if json offset cannot be found"""
-    with pytest.raises(PytubeError):
-        yt_video._get_json_offset('asdfasdf')

tests/test_utils.py

@@ -1,33 +0,0 @@
-#!/usr/bin/env python
-# -*- coding: utf-8 -*-
-from __future__ import unicode_literals
-
-from pytube import utils
-
-
-blob = 'Lorem ipsum dolor sit amet, consectetur adipiscing elit'
-
-
-def test_truncate():
-    """Truncate string works as expected"""
-    truncated = utils.truncate(blob, 11)
-    assert truncated == 'Lorem ipsum'
-
-
-def test_safe_filename():
-    """Unsafe characters get stripped from generated filename"""
-    assert utils.safe_filename('abc1245$$') == 'abc1245'
-    assert utils.safe_filename('abc##') == 'abc'
-    assert utils.safe_filename('abc:foo') == 'abc -foo'
-    assert utils.safe_filename('abc_foo') == 'abc foo'
-
-
-def test_sizeof():
-    """Accurately converts the bytes to its humanized equivalent"""
-    assert utils.sizeof(1) == '1 byte'
-    assert utils.sizeof(2) == '2 bytes'
-    assert utils.sizeof(2400) == '2 KB'
-    assert utils.sizeof(2400000) == '2 MB'
-    assert utils.sizeof(2400000000) == '2 GB'
-    assert utils.sizeof(2400000000000) == '2 TB'
-    assert utils.sizeof(2400000000000000) == '2 PB'