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from selenium.webdriver.common.by import By import selenic.util util = selenic.util.Util(driver) foo = util.find_element((By.CSS_SELECTOR, '...')) with util.local_timeout(10): pass

Mixing implicit and explicit waits

20268396_20269033_12

import rpy2.robjects as robjects data = robjects.r(""" set.seed(1) x <- runif(5) """)

Creating same random number sequence in Python, NumPy and R

22213298_22213400_14

from lxml import etree tree = etree.fromstring(templateXml).getroottree() xmlFileOut = '/Users/User1/Desktop/Python/Done.xml' with open(xmlFileOut, 'w') as f: pass

XML Declaration standalone="yes" lxml

18173983_18174097_13

ls scrapy

Trying to get Scrapy into a project to run Crawl command

4988297_5019817_3

from re import compile as _Re _unicode_chr_splitter = _Re('(?s)((?:[\\ud800-\\udbff][\\udc00-\\udfff])|.)' ).split

How to do a Python split() on languages (like Chinese) that don't use whitespace as word separator?

3797746_3798790_9

import re, sre_parse pattern = ( '(?P<DEF_FUNC>def (?P<NAME_FUNC>\\w+)\\s*\\((.*?)\\):)|(?P<OTHERS>\\w+)') v = sre_parse.parse(pattern)

Pattern associated to a named group

21366290_21366908_14

from werkzeug.routing import FloatConverter as BaseFloatConverter class FloatConverter(BaseFloatConverter): regex = '-?\\d+(\\.\\d+)?'

Flask route giving 404 with floating point numbers in the URL

20639363_20640550_7

Name

Merge multiple rows into 1 row

42038788_42038879_15

print(timeit(setup='import re', stmt= "r = re.search(r'(\\d{1,3}\\.\\d{1,3}.\\d{1,3}.\\d{1,3})', '192.168.1.1 999.999.999.999')" , number=1000000)) print(timeit(setup= "import re; regex = re.compile(r'(\\d{1,3}\\.\\d{1,3}.\\d{1,3}.\\d{1,3})')" , stmt="r = regex.search('192.168.1.1 999.999.999.999')", number=1000000))

Python Regex slower than expected

31164568_31165089_10

enqueue_many_size = SOME_ENQUEUE_MANY_SIZE reader = tf.TFRecordReader(options=tf.python_io.TFRecordOptions(tf. python_io.TFRecordCompressionType.ZLIB)) _, queue_batch = reader.read_up_to(filename_queue, enqueue_many_size)

Benchmark of HowTo: Reading Data

39840323_41769005_9

420 python3 420 420

Python 2to3 tool adds a vowel to my integer

24187248_24187326_10

myapp

Relative importing python module from a subfolder from a different subfolder

14682466_14682555_2

python import tarfile

is_tarfile() returns True for a blank file

3058374_16182764_8

from . import echo from .. import formats

Python: Importing a file from a parent folder

4636976_4637082_5

""" pygame.surfarray.blit_array(screen, pixels) pygame.display.flip() """

Setting Pixels Quickly

7117143_7141077_6

from os.path import join _PYSIDEDIR = 'C:\\Python27\\Lib\\site-packages\\PySide' data_files = [('imageformats', [join(_PYSIDEDIR, 'plugins\\imageformats\\qico4.dll')]), ('.', [join(_PYSIDEDIR, 'shiboken-python2.7.dll'), join(_PYSIDEDIR, 'QtCore4.dll'), join( _PYSIDEDIR, 'QtGui4.dll')])]

PyQt/PySide - icon display

4573995_5643540_8

import cmath dir(cmath)

Python: Is there a way to reflectivly list all attributes of a class

2612257_2613168_6

import io incsv = io.StringIO( """Date,State,City,SalesToday,SalesMTD,SalesYTD 20130320,stA,ctA,20,400,1000 20130320,stA,ctB,30,500,1100 20130320,stB,ctC,10,500,900 20130320,stB,ctD,40,200,1300 20130320,stC,ctF,30,300,800""" )

Pandas Pivot tables row subtotals

15570099_15570546_18

from tabulate import tabulate

Python format tabular output

8356501_24301608_5

import foo as module module_name = module.__name__ import_line = 'from %s import (%%s)' % module_name

Tool to help eliminate wildcard imports

7249488_7254337_15

return import dis

Python: How expensive is to create a small list many times?

2409472_2409523_16

from networkx.utils import powerlaw_sequence pl_sequence = powerlaw_sequence(1000, exponent=2.5) fitted_pl = powerlaw.Fit(pl_sequence) fitted_pl.alpha

Fit a power law to empirical data in Python

18167669_18180954_9

import_line = 'from %s import (%%s)' % module_name length = len(import_line) - 3

Tool to help eliminate wildcard imports

7249488_7254337_16

category

Identifying closest value in a column for each filter using Pandas

39970703_39970921_7

two three four

How to pdb Python code with input?

2764055_2765556_15

app book.py ccg chat chunk

Use NLTK without installing

12166819_12166860_16

enqueue_many_size = SOME_ENQUEUE_MANY_SIZE reader = tf.TFRecordReader(options=tf.python_io.TFRecordOptions(tf. python_io.TFRecordCompressionType.ZLIB))

Benchmark of HowTo: Reading Data

39840323_41769005_8

import random

multiple row selection in multi indexed dataframe

40666466_40666520_9

import Data.STRef.Lazy

How to make ST computation produce lazy result stream (or operate like a co-routine)?

10767736_10768103_4

import notebook_util notebook_util.pick_gpu_lowest_memory()

Tensorflow set CUDA_VISIBLE_DEVICES within jupyter

37893755_37901914_14

from coffin import template from ThrdPartyDjangoLib import djangoTagIWantToUse

Django : How to use 3rd party app templatetags with Jinja 2?

10949388_10979509_7

6.0

Can't delete row from SQLAlchemy due to wrong session

17127922_17225665_7

bin libs

Project directory structure for a multi-language application

25918514_26347358_10

prices orders

Vectorized look-up of values in Pandas dataframe

13893227_13893632_5

s1 = """ import numpy as np a=np.random.randint(0,200,100) b1=np.random.randint(0,100,50) np.intersect1d(b1,a) """

Return values from array based on indices of common values in two other arrays

29631504_29631641_18

fi

Displaying virtualenv

6837514_27949639_5

OrderNum

Pandas cumulative sum of partial elements with groupby

40753863_40754041_8

import sys sys.maxsize type(2 ** 63) type(2 ** 62)

Getting OverflowError: math range error(trying to calculate power of a number)

22400801_22401623_14

from pyftpdlib import servers from pyftpdlib.handlers import FTPHandler address = '0.0.0.0', 21 server = servers.FTPServer(address, FTPHandler)

One line ftp server in python

4994638_7303734_14

lxml

How to add a bootstrap script to tox's virtualenv?

13308498_13320020_18

import yagmail yag = yagmail.SMTP(from_add, password) contents = ['See my attachment below', '/home/bsingh/python_files/file_dict.txt']

Attachments getting attached twice using smptplib in python

30726956_31022959_9

from coffin import template from ThrdPartyDjangoLib import djangoTagIWantToUse register = template.Library()

Django : How to use 3rd party app templatetags with Jinja 2?

10949388_10979509_8

pyximport.install() import limits

Find maximum signed short integer in python

2308247_2308327_11

from pprint import pprint as p remove = ['/usr/lib/python2.7']

pip in virtualenv cannot find ctypes

42683518_42712569_16

fi fi fi

How can a shell function know if it is running within a virtualenv?

15454174_15454475_5

import Data.Array.ST import Control.Monad import Data.List

How to make ST computation produce lazy result stream (or operate like a co-routine)?

10767736_10771055_7

gdb > bt gdb > pystack

Is there a way to attach a debugger to a multi-threaded Python process?

47701_550795_4

movies

NumPy: mismatch in size of old and new data-descriptor

34294742_40599486_2

python - bcrypt arrow redis

Parallel Pip install

11021130_29618322_15

import dis dis.dis(literal) dis.dis(constructor)

Is there a difference between using a dict literal and a dict constructor?

6610606_6610973_18

from selenium.webdriver.common.by import By import selenic.util util = selenic.util.Util(driver) foo = util.find_element((By.CSS_SELECTOR, '...'))

Mixing implicit and explicit waits

20268396_20269033_13

from sphinx.ext.autodoc import ClassLevelDocumenter, InstanceAttributeDocumenter def iad_add_directive_header(self, sig): pass

Sphinx values for attributes reported as None

9153473_42738894_7

import java.io.IOException import java.util.ArrayList import org.apache.commons.io.FileUtils

Comparing two documents using regex

14652826_14653833_19

flags |= O_CREAT append = 1 break

Python file modes detail

654499_656289_12

Parameters

How do I inner join two array in numpy?

17926746_26980850_1

midnight

fuzzy timestamp parsing with Python

1258712_1378134_9

from IPython.core.magic import register_line_magic @register_line_magic def p(line): print(eval(line))

from past import print_statement

20250130_20251772_12

mk

How to make python autocompletion display matches?

4869121_4869496_9

print(timeit(setup='import re', stmt= "r = re.search(r'(\\d{1,3}\\.\\d{1,3}.\\d{1,3}.\\d{1,3})', '192.168.1.1 999.999.999.999')" , number=1000000)) print(timeit(setup= "import re; regex = re.compile(r'(\\d{1,3}\\.\\d{1,3}.\\d{1,3}.\\d{1,3})')" , stmt="r = regex.search('192.168.1.1 999.999.999.999')", number=1000000)) print(timeit(setup= "import re; regex = re.compile(r'((?:\\d{1,3}\\.){3}\\d{1,3})')", stmt= "r = regex.search('192.168.1.1 999.999.999.999')", number=1000000))

Python Regex slower than expected

31164568_31165089_11

python - slugify python - bcrypt arrow redis

Parallel Pip install

11021130_29618322_16

import spyne.const spyne.const.REQUEST_SUFFIX = 'RQ'

Changing Spyne constants

19627445_19636739_5

python import django django.VERSION

Activating a virtual env not working

24011399_39538451_6

Node * next Node * pre

vector assign in Cython

15071786_23681828_14

print(idx) category

Identifying closest value in a column for each filter using Pandas

39970703_39970921_8

uniq

how to control the import paths in Python?

27710350_27945932_5

from localconfig import config config.read("""[one] key = 42 key2 = None""") config.one.key, type(config.one.key) config.one.key2, type(config.one.key2)

Converting ConfigParser values to python data types

6209094_27737092_14

python - slugify python - bcrypt arrow redis psutil

Parallel Pip install

11021130_29618322_17

from Chessnut import Game chessgame = Game(fen= 'rnbq1rk1/ppppp1bp/5np1/5p2/2PP4/2NBPN2/PP3PPP/R1BQK2R b KQ - 4 6')

python: Chess moves validation

2860563_20708090_19

ccg chat chunk

Use NLTK without installing

12166819_12166860_17

void

Named parameters with Python C API?

1884327_1884369_17

import Control.Monad.ST.Lazy import Data.Array.ST import Control.Monad

How to make ST computation produce lazy result stream (or operate like a co-routine)?

10767736_10771055_8

gdb > bt gdb > pystack gdb > detach

Is there a way to attach a debugger to a multi-threaded Python process?

47701_550795_5

from selenium.webdriver.common.by import By import selenic.util util = selenic.util.Util(driver)

Mixing implicit and explicit waits

20268396_20269033_14

from pprint import pprint as p remove = ['/usr/lib/python2.7'] sys.path = [path for path in sys.path if path not in remove] import ctypes

pip in virtualenv cannot find ctypes

42683518_42712569_17

from Selenium2Library import Selenium2Library class CustomSeleniumLibrary(Selenium2Library): pass

Pass existing Webdriver object to custom Python library for Robot Framework

23703870_23704655_18

zero = 1 == 0 and 0 or 1 zero = False and 0 or 1 zero = 0 or 1

Use of OR as branch control in FP

5474514_5474796_13

nan is nan nan == nan

Comparison of collections containing non-reflexive elements

38779705_38779764_9

from werkzeug.routing import FloatConverter as BaseFloatConverter class FloatConverter(BaseFloatConverter): pass

Flask route giving 404 with floating point numbers in the URL

20639363_20640550_8

Parameters

Reductions down a column in Pandas

14542145_14543051_4

INITIALIZATION = ( """import numpy;numpy.random.seed(0);a=numpy.random.randn(1000,200);b=numpy.random.rand(200,1000)""" )

Row Sum of a dot product for huge matrix in python

42690970_42691232_5

derp_r1_sum_select = """ select sum(`derp_related_1`.`amount`) from `derp_related_1` where `derp_related_1`.`fk` = `derp`.`pk` """ derp_r2_sum_select = """ select sum(`derp_related_2`.`amount`) from `derp_related_2` where `derp_related_2`.`fk` = `derp`.`pk`" """

Django aggregation across multiple tables in ModelAdmin queryset

18327790_24312648_17

flags |= O_CREAT append = 1

Python file modes detail

654499_656289_13

log4j.rootLogger = INFO, stdout, logfile log4j.appender.stdout = org.apache.log4j.ConsoleAppender log4j.appender.stdout.layout = org.apache.log4j.PatternLayout

log4j with timestamp per log entry

358225_358641_9

from django.db.models import Max, Case, When, IntegerField qs = MyObject.objects.all() a_priority = Case(When(a='A', then=1), When(a='S', then=2), When(a='Q', then=3), output_field=IntegerField())

Maximum of an annotation after a group by

40318163_40418387_9

from sphinx.ext.autodoc import ClassLevelDocumenter, InstanceAttributeDocumenter def iad_add_directive_header(self, sig): ClassLevelDocumenter.add_directive_header(self, sig)

Sphinx values for attributes reported as None

9153473_42738894_8

idf

Pandas rolling median for duplicate time series data

9762193_9762583_5

print(timeit(setup= "import re; regex = re.compile(r'(\\d{1,3}\\.\\d{1,3}.\\d{1,3}.\\d{1,3})')" , stmt="r = regex.search('192.168.1.1 999.999.999.999')", number=1000000)) print(timeit(setup= "import re; regex = re.compile(r'((?:\\d{1,3}\\.){3}\\d{1,3})')", stmt= "r = regex.search('192.168.1.1 999.999.999.999')", number=1000000))

Python Regex slower than expected

31164568_31165089_12

++p continue

Default encoding of exception messages

1369089_1369357_8

import matplotlib.mlab as mlab regions = mlab.contiguous_regions(ser_orig == manual_mode) for i, (start, end) in enumerate(regions): pass

Finding contiguous, non-unique slices in Pandas series without iterating

35491426_35491719_10

check_vim create_dirs pull_sources

Any pointers on using Ropevim? Is it a usable library?

4843493_5082394_11

from ThrdPartyDjangoLib import djangoTagIWantToUse register = template.Library()

Django : How to use 3rd party app templatetags with Jinja 2?

10949388_10979509_9

from types import NoneType class InvalidKeyNone(NoneType): pass foo = InvalidKeyNone()

How to inherit from Python None

17424516_17424702_10

python << _EOF_ import vim print('arg is ' + vim.eval('a:arg')) _EOF_

How to pass arguments from vimscript functions to python interface?

27901211_27901437_13

void initthemodule(void)

Named parameters with Python C API?

1884327_1884369_18

Parent

Import module from subfolder

8953844_41893589_0

module_name = module.__name__ import_line = 'from %s import (%%s)' % module_name length = len(import_line) - 3

Tool to help eliminate wildcard imports

7249488_7254337_17

import cmath, math z = -1 + 0j cmath.phase(z)

Numpy - square root of -1 leaves a small real part

6290222_6293302_9

lngDiv.innerHtml = lng

Get the parameters of a JavaScript function with Scrapy

22011481_26852052_12

import dis dis.dis(literal)

Is there a difference between using a dict literal and a dict constructor?

6610606_6610973_19

import matplotlib.mlab as mlab regions = mlab.contiguous_regions(ser_orig == manual_mode) for i, (start, end) in enumerate(regions): ser_orig[start:end] = new_manual_mode_text.format(i)

Finding contiguous, non-unique slices in Pandas series without iterating

35491426_35491719_11