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‎plotly/offline/__init__.py

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"""
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offline
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======
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This module provides offline functionality.
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"""
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from . offline import (
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download_plotlyjs,
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init_notebook_mode,
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iplot
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)

‎plotly/offline/offline.py

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""" Plotly Offline
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A module to use Plotly's graphing library with Python
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without connecting to a public or private plotly enterprise
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server.
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"""
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from __future__ import absolute_import
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import uuid
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import json
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import os
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import requests
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import plotly.plotly as py
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from plotly import utils
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from plotly import tools
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from plotly.exceptions import PlotlyError
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_PLOTLY_OFFLINE_DIRECTORY = plotlyjs_path = os.path.expanduser(
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os.path.join(*'~/.plotly/plotlyjs'.split('/')))
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_PLOTLY_OFFLINE_BUNDLE = os.path.join(_PLOTLY_OFFLINE_DIRECTORY,
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'plotly-ipython-offline-bundle.js')
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__PLOTLY_OFFLINE_INITIALIZED = False
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def download_plotlyjs(download_url):
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if not os.path.exists(plotlyjs_path):
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os.makedirs(plotlyjs_path)
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res = requests.get(download_url)
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res.raise_for_status()
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with open(_PLOTLY_OFFLINE_BUNDLE, 'wb') as f:
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f.write(res.content)
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print('\n'.join([
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'Success! Now start an IPython notebook and run the following ' +
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'code to make your first offline graph:',
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'',
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'import plotly',
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'plotly.offline.init_notebook_mode() '
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'# run at the start of every ipython notebook',
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'plotly.offline.iplot([{"x": [1, 2, 3], "y": [3, 1, 6]}])'
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]))
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def init_notebook_mode():
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"""
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Initialize Plotly Offline mode in an IPython Notebook.
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Run this function at the start of an IPython notebook
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to load the necessary javascript files for creating
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Plotly graphs with plotly.offline.iplot.
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"""
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if not tools._ipython_imported:
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raise ImportError('`iplot` can only run inside an IPython Notebook.')
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from IPython.display import HTML, display
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if not os.path.exists(_PLOTLY_OFFLINE_BUNDLE):
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raise PlotlyError('Plotly Offline source file at {source_path} '
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'is not found.\n'
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'If you have a Plotly Offline license, then try '
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'running plotly.offline.download_plotlyjs(url) '
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'with a licensed download url.\n'
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"Don't have a Plotly Offline license? "
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'Contact [email protected] learn more about licensing.\n'
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'Questions? [email protected].'
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.format(source_path=_PLOTLY_OFFLINE_BUNDLE))
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global __PLOTLY_OFFLINE_INITIALIZED
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__PLOTLY_OFFLINE_INITIALIZED = True
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display(HTML('<script type="text/javascript">' +
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open(_PLOTLY_OFFLINE_BUNDLE).read() + '</script>'))
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def iplot(figure_or_data, show_link=True, link_text='Export to plot.ly'):
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"""
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Draw plotly graphs inside an IPython notebook without
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connecting to an external server.
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To save the chart to Plotly Cloud or Plotly Enterprise, use
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`plotly.plotly.iplot`.
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To embed an image of the chart, use `plotly.image.ishow`.
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figure_or_data -- a plotly.graph_objs.Figure or plotly.graph_objs.Data or
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dict or list that describes a Plotly graph.
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See https://plot.ly/python/ for examples of
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graph descriptions.
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Keyword arguments:
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show_link (default=True) -- display a link in the bottom-right corner of
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of the chart that will export the chart to
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Plotly Cloud or Plotly Enterprise
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link_text (default='Export to plot.ly') -- the text of export link
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Example:
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```
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from plotly.offline import init_notebook_mode, iplot
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init_notebook_mode()
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iplot([{'x': [1, 2, 3], 'y': [5, 2, 7]}])
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```
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"""
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if not __PLOTLY_OFFLINE_INITIALIZED:
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raise PlotlyError('\n'.join([
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'Plotly Offline mode has not been initialized in this notebook. '
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'Run: ',
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'',
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'import plotly',
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'plotly.offline.init_notebook_mode() '
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'# run at the start of every ipython notebook',
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]))
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if not tools._ipython_imported:
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raise ImportError('`iplot` can only run inside an IPython Notebook.')
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from IPython.display import HTML, display
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if isinstance(figure_or_data, dict):
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data = figure_or_data['data']
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layout = figure_or_data.get('layout', {})
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else:
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data = figure_or_data
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layout = {}
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width = layout.get('width', '100%')
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height = layout.get('height', 525)
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try:
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float(width)
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except (ValueError, TypeError):
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pass
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else:
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width = str(width) + 'px'
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try:
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float(width)
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except (ValueError, TypeError):
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pass
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else:
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width = str(width) + 'px'
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plotdivid = uuid.uuid4()
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jdata = json.dumps(data, cls=utils.PlotlyJSONEncoder)
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jlayout = json.dumps(layout, cls=utils.PlotlyJSONEncoder)
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if show_link is False:
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link_text = ''
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plotly_platform_url = py.get_config().get('plotly_domain',
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'https://plot.ly')
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if (plotly_platform_url != 'https://plot.ly' and
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link_text == 'Export to plot.ly'):
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link_domain = plotly_platform_url\
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.replace('https://', '')\
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.replace('http://', '')
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link_text = link_text.replace('plot.ly', link_domain)
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display(HTML(
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'<script type="text/javascript">'
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'window.PLOTLYENV={"BASE_URL": "' + plotly_platform_url + '"};'
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'Plotly.LINKTEXT = "' + link_text + '";'
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'</script>'
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))
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script = '\n'.join([
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'Plotly.plot("{id}", {data}, {layout}).then(function() {{',
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' $(".{id}.loading").remove();',
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'}})'
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]).format(id=plotdivid,
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data=jdata,
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layout=jlayout,
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link_text=link_text)
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display(HTML(''
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'<div class="{id} loading" style="color: rgb(50,50,50);">'
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'Drawing...</div>'
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'<div id="{id}" style="height: {height}; width: {width};" '
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'class="plotly-graph-div">'
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'</div>'
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'<script type="text/javascript">'
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'{script}'
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'</script>'
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''.format(id=plotdivid, script=script,
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height=height, width=width)))
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def plot():
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""" Configured to work with localhost Plotly graph viewer
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"""
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raise NotImplementedError

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