##// END OF EJS Templates
Backport PR #4163: Fix for incorrect default encoding on Windows....
Backport PR #4163: Fix for incorrect default encoding on Windows. Whilst trying out rendering notebooks in a flask app under Apache on Windows I got the below error when simply trying to import `SlidesExporter` ```python mod_wsgi (pid=6260): Exception occurred processing WSGI script 'flask_test.wsgi'. Traceback (most recent call last): File "flask_test.py", line 81, in render_notebook from IPython.nbconvert.exporters import SlidesExporter File "c:\\dev\\code\\ipython\\IPython\\__init__.py", line 47, in <module> from .terminal.embed import embed File "c:\\dev\\code\\ipython\\IPython\\terminal\\embed.py", line 32, in <module> from IPython.terminal.interactiveshell import TerminalInteractiveShell File "c:\\dev\\code\\ipython\\IPython\\terminal\\interactiveshell.py", line 25, in <module> from IPython.core.interactiveshell import InteractiveShell, InteractiveShellABC File "c:\\dev\\code\\ipython\\IPython\\core\\interactiveshell.py", line 59, in <module> from IPython.core.prompts import PromptManager File "c:\\dev\\code\\ipython\\IPython\\core\\prompts.py", line 138, in <module> HOME = py3compat.str_to_unicode(os.environ.get("HOME","//////:::::ZZZZZ,,,~~~")) File "c:\\dev\\code\\ipython\\IPython\\utils\\py3compat.py", line 18, in decode return s.decode(encoding, "replace") LookupError: unknown encoding: cp0 ``` A little bit of [googling](http://bugs.python.org/issue6501) suggests that Windows returns 'cp0' to indicate there is no code page. This fix simply looks for this invalid value and replaces it with something valid. With this change it works for me.

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notebook.html
259 lines | 13.6 KiB | text/html | HtmlLexer
{% extends "page.html" %}
{% block stylesheet %}
{% if mathjax_url %}
<script type="text/javascript" src="{{mathjax_url}}?config=TeX-AMS_HTML-full&delayStartupUntil=configured" charset="utf-8"></script>
{% endif %}
<script type="text/javascript">
// MathJax disabled, set as null to distingish from *missing* MathJax,
// where it will be undefined, and should prompt a dialog later.
window.mathjax_url = "{{mathjax_url}}";
</script>
<link rel="stylesheet" href="{{ static_url("components/codemirror/lib/codemirror.css") }}">
{{super()}}
<link rel="stylesheet" href="{{ static_url("notebook/css/override.css") }}" type="text/css" />
{% endblock %}
{% block params %}
data-project={{project}}
data-base-project-url={{base_project_url}}
data-base-kernel-url={{base_kernel_url}}
data-notebook-id={{notebook_id}}
class="notebook_app"
{% endblock %}
{% block header %}
<span id="save_widget" class="nav pull-left">
<span id="notebook_name"></span>
<span id="checkpoint_status"></span>
<span id="autosave_status"></span>
</span>
{% endblock %}
{% block site %}
<div id="menubar-container" class="container">
<div id="menubar">
<div class="navbar">
<div class="navbar-inner">
<div class="container">
<ul id="menus" class="nav">
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">File</a>
<ul class="dropdown-menu">
<li id="new_notebook"><a href="#">New</a></li>
<li id="open_notebook"><a href="#">Open...</a></li>
<!-- <hr/> -->
<li class="divider"></li>
<li id="copy_notebook"><a href="#">Make a Copy...</a></li>
<li id="rename_notebook"><a href="#">Rename...</a></li>
<li id="save_checkpoint"><a href="#">Save and Checkpoint</a></li>
<!-- <hr/> -->
<li class="divider"></li>
<li id="restore_checkpoint" class="dropdown-submenu"><a href="#">Revert to Checkpoint</a>
<ul class="dropdown-menu">
<li><a href="#"></a></li>
<li><a href="#"></a></li>
<li><a href="#"></a></li>
<li><a href="#"></a></li>
<li><a href="#"></a></li>
</ul>
</li>
<li class="divider"></li>
<li class="dropdown-submenu"><a href="#">Download as</a>
<ul class="dropdown-menu">
<li id="download_ipynb"><a href="#">IPython (.ipynb)</a></li>
<li id="download_py"><a href="#">Python (.py)</a></li>
</ul>
</li>
<li class="divider"></li>
<li id="kill_and_exit"><a href="#" >Close and halt</a></li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Edit</a>
<ul class="dropdown-menu">
<li id="cut_cell"><a href="#">Cut Cell</a></li>
<li id="copy_cell"><a href="#">Copy Cell</a></li>
<li id="paste_cell_above" class="disabled"><a href="#">Paste Cell Above</a></li>
<li id="paste_cell_below" class="disabled"><a href="#">Paste Cell Below</a></li>
<li id="paste_cell_replace" class="disabled"><a href="#">Paste Cell &amp; Replace</a></li>
<li id="delete_cell"><a href="#">Delete Cell</a></li>
<li id="undelete_cell" class="disabled"><a href="#">Undo Delete Cell</a></li>
<li class="divider"></li>
<li id="split_cell"><a href="#">Split Cell</a></li>
<li id="merge_cell_above"><a href="#">Merge Cell Above</a></li>
<li id="merge_cell_below"><a href="#">Merge Cell Below</a></li>
<li class="divider"></li>
<li id="move_cell_up"><a href="#">Move Cell Up</a></li>
<li id="move_cell_down"><a href="#">Move Cell Down</a></li>
<li class="divider"></li>
<li id="select_previous"><a href="#">Select Previous Cell</a></li>
<li id="select_next"><a href="#">Select Next Cell</a></li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">View</a>
<ul class="dropdown-menu">
<li id="toggle_header"><a href="#">Toggle Header</a></li>
<li id="toggle_toolbar"><a href="#">Toggle Toolbar</a></li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Insert</a>
<ul class="dropdown-menu">
<li id="insert_cell_above"><a href="#">Insert Cell Above</a></li>
<li id="insert_cell_below"><a href="#">Insert Cell Below</a></li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Cell</a>
<ul class="dropdown-menu">
<li id="run_cell"><a href="#">Run</a></li>
<li id="run_cell_in_place"><a href="#">Run in Place</a></li>
<li id="run_all_cells"><a href="#">Run All</a></li>
<li id="run_all_cells_above"><a href="#">Run All Above</a></li>
<li id="run_all_cells_below"><a href="#">Run All Below</a></li>
<li class="divider"></li>
<li id="change_cell_type" class="dropdown-submenu"><a href="#">Cell Type</a>
<ul class="dropdown-menu">
<li id="to_code"><a href="#">Code</a></li>
<li id="to_markdown"><a href="#">Markdown </a></li>
<li id="to_raw"><a href="#">Raw Text</a></li>
<li id="to_heading1"><a href="#">Heading 1</a></li>
<li id="to_heading2"><a href="#">Heading 2</a></li>
<li id="to_heading3"><a href="#">Heading 3</a></li>
<li id="to_heading4"><a href="#">Heading 4</a></li>
<li id="to_heading5"><a href="#">Heading 5</a></li>
<li id="to_heading6"><a href="#">Heading 6</a></li>
</ul>
</li>
<li class="divider"></li>
<li id="toggle_output"><a href="#">Toggle Current Output</a></li>
<li id="all_outputs" class="dropdown-submenu"><a href="#">All Output</a>
<ul class="dropdown-menu">
<li id="expand_all_output"><a href="#">Expand</a></li>
<li id="scroll_all_output"><a href="#">Scroll Long</a></li>
<li id="collapse_all_output"><a href="#">Collapse</a></li>
<li id="clear_all_output"><a href="#">Clear</a></li>
</ul>
</li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Kernel</a>
<ul class="dropdown-menu">
<li id="int_kernel"><a href="#">Interrupt</a></li>
<li id="restart_kernel"><a href="#">Restart</a></li>
</ul>
</li>
<li class="dropdown"><a href="#" class="dropdown-toggle" data-toggle="dropdown">Help</a>
<ul class="dropdown-menu">
<li><a href="http://ipython.org/documentation.html" target="_blank">IPython Help</a></li>
<li><a href="http://ipython.org/ipython-doc/stable/interactive/notebook.html" target="_blank">Notebook Help</a></li>
<li id="keyboard_shortcuts"><a href="#">Keyboard Shortcuts</a></li>
<li class="divider"></li>
<li><a href="http://docs.python.org" target="_blank">Python</a></li>
<li><a href="http://docs.scipy.org/doc/numpy/reference/" target="_blank">NumPy</a></li>
<li><a href="http://docs.scipy.org/doc/scipy/reference/" target="_blank">SciPy</a></li>
<li><a href="http://matplotlib.org/" target="_blank">Matplotlib</a></li>
<li><a href="http://docs.sympy.org/dev/index.html" target="_blank">SymPy</a></li>
<li><a href="http://pandas.pydata.org/pandas-docs/stable/" target="_blank">pandas</a></li>
</ul>
</li>
</ul>
<div id="notification_area"></div>
</div>
</div>
</div>
</div>
<div id="maintoolbar" class="navbar">
<div class="toolbar-inner navbar-inner navbar-nobg">
<div id="maintoolbar-container" class="container"></div>
</div>
</div>
</div>
<div id="ipython-main-app">
<div id="notebook_panel">
<div id="notebook"></div>
<div id="pager_splitter"></div>
<div id="pager">
<div id='pager_button_area'>
</div>
<div id="pager-container" class="container"></div>
</div>
</div>
</div>
<div id='tooltip' class='ipython_tooltip' style='display:none'></div>
{% endblock %}
{% block script %}
{{super()}}
<script src="{{ static_url("components/codemirror/lib/codemirror.js") }}" charset="utf-8"></script>
<script type="text/javascript">
CodeMirror.modeURL = "{{ static_url("components/codemirror/mode/%N/%N.js") }}";
</script>
<script src="{{ static_url("components/codemirror/addon/mode/loadmode.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/addon/mode/multiplex.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/addon/mode/overlay.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/addon/edit/matchbrackets.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/addon/comment/comment.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/htmlmixed/htmlmixed.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/xml/xml.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/javascript/javascript.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/css/css.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/rst/rst.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/markdown/markdown.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/gfm/gfm.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/codemirror/mode/python/python.js") }}" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/codemirror-ipython.js") }}" charset="utf-8"></script>
<script src="{{ static_url("components/highlight.js/build/highlight.pack.js") }}" charset="utf-8"></script>
<script src="{{ static_url("dateformat/date.format.js") }}" charset="utf-8"></script>
<script src="{{ static_url("base/js/events.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("base/js/utils.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("base/js/dialog.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/layoutmanager.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/mathjaxutils.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/outputarea.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/cell.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/celltoolbar.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/codecell.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/completer.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/textcell.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("services/kernels/js/kernel.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/savewidget.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/quickhelp.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/pager.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/menubar.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/toolbar.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/maintoolbar.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/notebook.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/notificationwidget.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/notificationarea.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/tooltip.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/config.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/main.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/contexthint.js") }}" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/celltoolbarpresets/default.js") }}" type="text/javascript" charset="utf-8"></script>
<script src="{{ static_url("notebook/js/celltoolbarpresets/slideshow.js") }}" type="text/javascript" charset="utf-8"></script>
{% endblock %}