upstream/ipython Files · IPython/nbconvert/templates/html/full.tpl

Reset the interactive namespace __warningregistry__ before executing code...

Reset the interactive namespace __warningregistry__ before executing code Fixes . Idea: Right now, people often don't see important warnings when running code in IPython, because (to a first approximation) any given warning will only issue once per session. Blink and you'll miss it! This is a very common contributor to confused emails to numpy-discussion. E.g.: In [5]: 1 / my_array_with_random_contents /home/njs/.user-python2.7-64bit-3/bin/ipython:1: RuntimeWarning: divide by zero encountered in divide #!/home/njs/.user-python2.7-64bit-3/bin/python Out[5]: array([ 1.77073316, -2.29765021, -2.01800811, ..., 1.13871243, -1.08302964, -8.6185091 ]) Oo, right, guess I gotta be careful of those zeros -- thanks, numpy, for giving me that warning! A few days later: In [592]: 1 / some_other_array Out[592]: array([ 3.07735763, 0.50769289, 0.83984078, ..., -0.67563917, -0.85736257, -1.36511271]) Oops, it turns out that this array had a zero in it too, and that's going to bite me later. But no warning this time! The effect of this commit is to make it so that warnings triggered by the code in cell 5 do *not* suppress warnings triggered by the code in cell 592. Note that this only applies to warnings triggered *directly* by code entered interactively -- if somepkg.foo() calls anotherpkg.bad_func() which issues a warning, then this warning will still only be displayed once, even if multiple cells call somepkg.foo(). But if cell 5 and cell 592 both call anotherpkg.bad_func() directly, then both will get warnings. (Important exception: if foo() is defined *interactively*, and calls anotherpkg.bad_func(), then every cell that calls foo() will display the warning again. This is unavoidable without fixes to CPython upstream.) Explanation: Python's warning system has some weird quirks. By default, it tries to suppress duplicate warnings, where "duplicate" means the same warning message triggered twice by the same line of code. This requires determining which line of code is responsible for triggering a warning, and this is controlled by the stacklevel= argument to warnings.warn. Basically, though, the idea is that if foo() calls bar() which calls baz() which calls some_deprecated_api(), then baz() will get counted as being "responsible", and the warning system will make a note that the usage of some_deprecated_api() inside baz() has already been warned about and doesn't need to be warned about again. So far so good. To accomplish this, obviously, there has to be a record of somewhere which line this was. You might think that this would be done by recording the filename:linenumber pair in a dict inside the warnings module, or something like that. You would be wrong. What actually happens is that the warnings module will use stack introspection to reach into baz()'s execution environment, create a global (module-level) variable there named __warningregistry__, and then, inside this dictionary, record just the line number. Basically, it assumes that any given module contains only one line 1, only one line 2, etc., so storing the filename is irrelevant. Obviously for interactive code this is totally wrong -- all cells share the same execution environment and global namespace, and they all contain a new line 1. Currently the warnings module treats these as if they were all the same line. In fact they are not the same line; once we have executed a given chunk of code, we will never see those particular lines again. As soon as a given chunk of code finishes executing, its line number labels become meaningless, and the corresponding warning registry entries become meaningless as well. Therefore, with this patch we delete the __warningregistry__ each time we execute a new block of code.

Brian E. Granger - - Load All Authors

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r15733:67701c01


                r18548:61431d7d

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             full.tpl
        
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                | application/vnd.groove-tool-template
            
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             / IPython / nbconvert / templates / html / full.tpl
          
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        Thomas Kluyver
    
Move html templates into separate folder

              r14047
            
      {%- extends 'basic.tpl' -%}

        damianavila
    
Changed name of file from math to mathjax.

              r14154
            
      {% from 'mathjax.tpl' import mathjax %}

        Matthias BUSSONNIER
    
null template

              r8997
            
        damianavila
    
Redo of fixing templates structure.

              r11770
            
      {%- block header -%}

      <!DOCTYPE html>

        Matthias BUSSONNIER
    
null template

              r8997
            
      <html>

      <head>

        damianavila
    
Some changes to improve readibility.

              r12889
            
        damianavila
    
Added closing slash to meta.

              r12890
            
      <meta charset="utf-8" />

        damianavila
    
Added title to full_html and slides.

              r12891
            
      <title>{{resources['metadata']['name']}}</title>

        damianavila
    
Some changes to improve readibility.

              r12889
            
        Jonathan Frederic
    
https

              r15731
            
      <script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>

      <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>

        Jonathan Frederic
    
CDN JS resources

              r15727
            
        Matthias BUSSONNIER
    
move html header out

              r9490
            
      {% for css in resources.inlining.css -%}

        damianavila
    
Redo of fixing templates structure.

              r11770
            
          <style type="text/css">

          {{ css }}

          </style>

        Matthias BUSSONNIER
    
modularize inlining

              r9048
            
      {% endfor %}

        damianavila
    
Fixed css in reveal template and move static_html css to full_html template.

              r9563
            
      <style type="text/css">

      /* Overrides of notebook CSS for static HTML export */

      body {

        overflow: visible;

        padding: 8px;

      }

        Jonathan Frederic
    
Added code to prevent print page breaks in cells, output_wrapper, and output.

              r15370
            
        Jonathan Frederic
    
Moved CSS into <style>

              r15722
            
      div#notebook {

        overflow: visible;

        border-top: none;

      }

        Jonathan Frederic
    
Added code to prevent print page breaks in cells, output_wrapper, and output.

              r15370
            
      @media print {

        div.cell {

          display: block;

          page-break-inside: avoid;

        } 

        div.output_wrapper { 

          display: block;

          page-break-inside: avoid; 

        }

        div.output { 

          display: block;

          page-break-inside: avoid; 

        }

      }

        damianavila
    
Fixed css in reveal template and move static_html css to full_html template.

              r9563
            
      </style>

        damianavila
    
Added (to full_html and reveal templates) the possbility to read a custom.css file for tweaking the final html.

              r11247
            
      <!-- Custom stylesheet, it must be in the same directory as the html file -->

      <link rel="stylesheet" href="custom.css">

        damianavila
    
Added a math jinja macro containing the scripts to load mathjax.

              r14150
            
      <!-- Loading mathjax macro -->

        damianavila
    
Added missing braces.

              r14151
            
      {{ mathjax() }}

        damianavila
    
Added a math jinja macro containing the scripts to load mathjax.

              r14150
            
        Matthias BUSSONNIER
    
null template

              r8997
            
      </head>

      {%- endblock header -%}

      {% block body %}

        damianavila
    
Redo of fixing templates structure.

              r11770
            
      <body>

        Jonathan Frederic
    
Removed notebook specific divs,...

              r15725
            
        <div tabindex="-1" id="notebook" class="border-box-sizing">

          <div class="container" id="notebook-container">

        damianavila
    
Redo of fixing templates structure.

              r11770
            
      {{ super() }}

        Jonathan Frederic
    
Make nbconvert html full output like notebook's html....

              r15713
            
          </div>

        </div>

        Matthias BUSSONNIER
    
svgoutput

              r9039
            
      </body>

      {%- endblock body %}

        Matthias BUSSONNIER
    
null template

              r8997
            
      {% block footer %}

        damianavila
    
Redo of fixing templates structure.

              r11770
            
      </html>

        Thomas Kluyver
    
Move html templates into separate folder

              r14047
            
      {% endblock footer %}

	Site-wide shortcuts
/	Use quick search box
g h	Goto home page
g g	Goto my private gists page
g G	Goto my public gists page
g 0-9	Goto bookmarked items from 0-9
n r	New repository page
n g	New gist page

	Repositories
g s	Goto summary page
g c	Goto changelog page
g f	Goto files page
g F	Goto files page with file search activated
g p	Goto pull requests page
g o	Goto repository settings
g O	Goto repository access permissions settings
t s	Toggle sidebar on some pages

Thomas Kluyver Move html templates into separate folder	r14047	{%- extends 'basic.tpl' -%}
damianavila Changed name of file from math to mathjax.	r14154	{% from 'mathjax.tpl' import mathjax %}
Matthias BUSSONNIER null template	r8997
damianavila Redo of fixing templates structure.	r11770
		{%- block header -%}
		<!DOCTYPE html>
Matthias BUSSONNIER null template	r8997	<html>
		<head>
damianavila Some changes to improve readibility.	r12889
damianavila Added closing slash to meta.	r12890	<meta charset="utf-8" />
damianavila Added title to full_html and slides.	r12891	<title>{{resources['metadata']['name']}}</title>
damianavila Some changes to improve readibility.	r12889
Jonathan Frederic https	r15731	<script src="https://cdnjs.cloudflare.com/ajax/libs/require.js/2.1.10/require.min.js"></script>
		<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
Jonathan Frederic CDN JS resources	r15727
Matthias BUSSONNIER move html header out	r9490	{% for css in resources.inlining.css -%}
damianavila Redo of fixing templates structure.	r11770	<style type="text/css">
		{{ css }}
		</style>
Matthias BUSSONNIER modularize inlining	r9048	{% endfor %}
damianavila Fixed css in reveal template and move static_html css to full_html template.	r9563
		<style type="text/css">
		/* Overrides of notebook CSS for static HTML export */
		body {
		overflow: visible;
		padding: 8px;
		}
Jonathan Frederic Added code to prevent print page breaks in cells, output_wrapper, and output.	r15370
Jonathan Frederic Moved CSS into <style>	r15722	div#notebook {
		overflow: visible;
		border-top: none;
		}

Jonathan Frederic Added code to prevent print page breaks in cells, output_wrapper, and output.	r15370	@media print {
		div.cell {
		display: block;
		page-break-inside: avoid;
		}
		div.output_wrapper {
		display: block;
		page-break-inside: avoid;
		}
		div.output {
		display: block;
		page-break-inside: avoid;
		}
		}
damianavila Fixed css in reveal template and move static_html css to full_html template.	r9563	</style>

damianavila Added (to full_html and reveal templates) the possbility to read a custom.css file for tweaking the final html.	r11247	<!-- Custom stylesheet, it must be in the same directory as the html file -->
		<link rel="stylesheet" href="custom.css">

damianavila Added a math jinja macro containing the scripts to load mathjax.	r14150	<!-- Loading mathjax macro -->
damianavila Added missing braces.	r14151	{{ mathjax() }}
damianavila Added a math jinja macro containing the scripts to load mathjax.	r14150
Matthias BUSSONNIER null template	r8997	</head>
		{%- endblock header -%}

		{% block body %}
damianavila Redo of fixing templates structure.	r11770	<body>
Jonathan Frederic Removed notebook specific divs,...	r15725	<div tabindex="-1" id="notebook" class="border-box-sizing">
		<div class="container" id="notebook-container">
damianavila Redo of fixing templates structure.	r11770	{{ super() }}
Jonathan Frederic Make nbconvert html full output like notebook's html....	r15713	</div>
		</div>
Matthias BUSSONNIER svgoutput	r9039	</body>
		{%- endblock body %}
Matthias BUSSONNIER null template	r8997
		{% block footer %}
damianavila Redo of fixing templates structure.	r11770	</html>
Thomas Kluyver Move html templates into separate folder	r14047	{% endblock footer %}