Spaces:
Runtime error
Runtime error
File size: 4,493 Bytes
0496554 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 |
import streamlit as st
import pickle
import pandas as pd
import json
import base64
import uuid
import re
import importlib.util
def import_from_file(module_name: str, filepath: str):
"""
Imports a module from file.
Args:
module_name (str): Assigned to the module's __name__ parameter (does not
influence how the module is named outside of this function)
filepath (str): Path to the .py file
Returns:
The module
"""
spec = importlib.util.spec_from_file_location(module_name, filepath)
module = importlib.util.module_from_spec(spec)
spec.loader.exec_module(module)
return module
def notebook_header(text):
"""
Insert section header into a jinja file, formatted as notebook cell.
Leave 2 blank lines before the header.
"""
return f"""# # {text}
"""
def code_header(text):
"""
Insert section header into a jinja file, formatted as Python comment.
Leave 2 blank lines before the header.
"""
seperator_len = (75 - len(text)) / 2
seperator_len_left = math.floor(seperator_len)
seperator_len_right = math.ceil(seperator_len)
return f"# {'-' * seperator_len_left} {text} {'-' * seperator_len_right}"
def to_notebook(code):
"""Converts Python code to Jupyter notebook format."""
notebook = jupytext.reads(code, fmt="py")
return jupytext.writes(notebook, fmt="ipynb")
def open_link(url, new_tab=True):
"""Dirty hack to open a new web page with a streamlit button."""
# From: https://discuss.streamlit.io/t/how-to-link-a-button-to-a-webpage/1661/3
if new_tab:
js = f"window.open('{url}')" # New tab or window
else:
js = f"window.location.href = '{url}'" # Current tab
html = '<img src onerror="{}">'.format(js)
div = Div(text=html)
st.bokeh_chart(div)
def download_button(object_to_download, download_filename, button_text):
"""
Generates a link to download the given object_to_download.
From: https://discuss.streamlit.io/t/a-download-button-with-custom-css/4220
Params:
------
object_to_download: The object to be downloaded.
download_filename (str): filename and extension of file. e.g. mydata.csv,
some_txt_output.txt download_link_text (str): Text to display for download
link.
button_text (str): Text to display on download button (e.g. 'click here to download file')
pickle_it (bool): If True, pickle file.
Returns:
-------
(str): the anchor tag to download object_to_download
Examples:
--------
download_link(your_df, 'YOUR_DF.csv', 'Click to download data!')
download_link(your_str, 'YOUR_STRING.txt', 'Click to download text!')
"""
# if:
if isinstance(object_to_download, bytes):
pass
elif isinstance(object_to_download, pd.DataFrame):
object_to_download = object_to_download.to_csv(index=False)
# Try JSON encode for everything else
else:
object_to_download = json.dumps(object_to_download)
try:
# some strings <-> bytes conversions necessary here
b64 = base64.b64encode(object_to_download.encode()).decode()
except AttributeError as e:
b64 = base64.b64encode(object_to_download).decode()
button_uuid = str(uuid.uuid4()).replace("-", "")
button_id = re.sub("\d+", "", button_uuid)
custom_css = f"""
<style>
#{button_id} {{
display: inline-flex;
align-items: center;
justify-content: center;
background-color: rgb(255, 255, 255);
color: rgb(38, 39, 48);
padding: .25rem .75rem;
position: relative;
text-decoration: none;
border-radius: 4px;
border-width: 1px;
border-style: solid;
border-color: rgb(230, 234, 241);
border-image: initial;
}}
#{button_id}:hover {{
border-color: rgb(246, 51, 102);
color: rgb(246, 51, 102);
}}
#{button_id}:active {{
box-shadow: none;
background-color: rgb(246, 51, 102);
color: white;
}}
</style> """
dl_link = (
custom_css
+ f'<a download="{download_filename}" id="{button_id}" href="data:file/txt;base64,{b64}">{button_text}</a><br><br>'
)
st.markdown(dl_link, unsafe_allow_html=True)
|