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Code Issues Projects Releases Packages Wiki Activity Actions 11

bpo-43283: Rearrange some IDLE doc paragraphs. (GH-24604)

Browse source 
In the Running User Code section, gather together paragraphs about two
processes and the sys.stdstream replacements, preparing to add another.
(cherry picked from commit 4cf7bb8e22)

Co-authored-by: Terry Jan Reedy <tjreedy@udel.edu>
This commit is contained in:
Miss Islington (bot) 2021-02-21 00:07:33 -08:00 • committed by GitHub
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commit 693aeacf88
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2 changed files with 37 additions and 36 deletions
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29
Doc/library/idle.rst
View file

@ -726,28 +726,29 @@ with objects that get input from and send output to the Shell window.
The original values stored in ``sys.__stdin__``, ``sys.__stdout__``, and
``sys.__stderr__`` are not touched, but may be ``None``.
When Shell has the focus, it controls the keyboard and screen. This is
normally transparent, but functions that directly access the keyboard
and screen will not work. These include system-specific functions that
determine whether a key has been pressed and if so, which.
IDLE's standard stream replacements are not inherited by subprocesses
created in the execution process, whether directly by user code or by modules
such as multiprocessing. If such subprocess use ``input`` from sys.stdin
or ``print`` or ``write`` to sys.stdout or sys.stderr,
created in the execution process, whether directly by user code or by
modules such as multiprocessing. If such subprocess use ``input`` from
sys.stdin or ``print`` or ``write`` to sys.stdout or sys.stderr,
IDLE should be started in a command line window. The secondary subprocess
will then be attached to that window for input and output.
The IDLE code running in the execution process adds frames to the call stack
that would not be there otherwise. IDLE wraps ``sys.getrecursionlimit`` and
``sys.setrecursionlimit`` to reduce the effect of the additional stack frames.
If ``sys`` is reset by user code, such as with ``importlib.reload(sys)``,
IDLE's changes are lost and input from the keyboard and output to the screen
will not work correctly.
When user code raises SystemExit either directly or by calling sys.exit, IDLE
returns to a Shell prompt instead of exiting.
When Shell has the focus, it controls the keyboard and screen. This is
normally transparent, but functions that directly access the keyboard
and screen will not work. These include system-specific functions that
determine whether a key has been pressed and if so, which.
The IDLE code running in the execution process adds frames to the call stack
that would not be there otherwise. IDLE wraps ``sys.getrecursionlimit`` and
``sys.setrecursionlimit`` to reduce the effect of the additional stack
frames.
When user code raises SystemExit either directly or by calling sys.exit,
IDLE returns to a Shell prompt instead of exiting.
User output in Shell
^^^^^^^^^^^^^^^^^^^^

44
Lib/idlelib/help.html
View file

@ -5,7 +5,7 @@
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>IDLE &#8212; Python 3.10.0a1 documentation</title>
<title>IDLE &#8212; Python 3.10.0a5 documentation</title>
<link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
@ -18,7 +18,7 @@
<script src="../_static/sidebar.js"></script>
<link rel="search" type="application/opensearchdescription+xml"
title="Search within Python 3.10.0a1 documentation"
title="Search within Python 3.10.0a5 documentation"
href="../_static/opensearch.xml"/>
<link rel="author" title="About these documents" href="../about.html" />
<link rel="index" title="Index" href="../genindex.html" />
@ -32,7 +32,6 @@
<style>
@media only screen {
table.full-width-table {
@ -71,8 +70,8 @@
<li><a href="https://www.python.org/">Python</a> &#187;</li>
<li>
<a href="../index.html">3.10.0a1 Documentation</a> &#187;
<li id="cpython-language-and-version">
<a href="../index.html">3.10.0a5 Documentation</a> &#187;
</li>
<li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> &#187;</li>
@ -285,7 +284,7 @@ Editor window.</p>
<dl class="simple">
<dt>View Last Restart</dt><dd><p>Scroll the shell window to the last Shell restart.</p>
</dd>
<dt>Restart Shell</dt><dd><p>Restart the shell to clean the environment.</p>
<dt>Restart Shell</dt><dd><p>Restart the shell to clean the environment and reset display and exception handling.</p>
</dd>
<dt>Previous History</dt><dd><p>Cycle through earlier commands in history which match the current entry.</p>
</dd>
@ -680,24 +679,25 @@ process, it replaces <code class="docutils literal notranslate"><span class="pre
with objects that get input from and send output to the Shell window.
The original values stored in <code class="docutils literal notranslate"><span class="pre">sys.__stdin__</span></code>, <code class="docutils literal notranslate"><span class="pre">sys.__stdout__</span></code>, and
<code class="docutils literal notranslate"><span class="pre">sys.__stderr__</span></code> are not touched, but may be <code class="docutils literal notranslate"><span class="pre">None</span></code>.</p>
<p>IDLE’s standard stream replacements are not inherited by subprocesses
created in the execution process, whether directly by user code or by
modules such as multiprocessing. If such subprocess use <code class="docutils literal notranslate"><span class="pre">input</span></code> from
sys.stdin or <code class="docutils literal notranslate"><span class="pre">print</span></code> or <code class="docutils literal notranslate"><span class="pre">write</span></code> to sys.stdout or sys.stderr,
IDLE should be started in a command line window. The secondary subprocess
will then be attached to that window for input and output.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">sys</span></code> is reset by user code, such as with <code class="docutils literal notranslate"><span class="pre">importlib.reload(sys)</span></code>,
IDLE’s changes are lost and input from the keyboard and output to the screen
will not work correctly.</p>
<p>When Shell has the focus, it controls the keyboard and screen. This is
normally transparent, but functions that directly access the keyboard
and screen will not work. These include system-specific functions that
determine whether a key has been pressed and if so, which.</p>
<p>IDLE’s standard stream replacements are not inherited by subprocesses
created in the execution process, whether directly by user code or by modules
such as multiprocessing. If such subprocess use <code class="docutils literal notranslate"><span class="pre">input</span></code> from sys.stdin
or <code class="docutils literal notranslate"><span class="pre">print</span></code> or <code class="docutils literal notranslate"><span class="pre">write</span></code> to sys.stdout or sys.stderr,
IDLE should be started in a command line window. The secondary subprocess
will then be attached to that window for input and output.</p>
<p>The IDLE code running in the execution process adds frames to the call stack
that would not be there otherwise. IDLE wraps <code class="docutils literal notranslate"><span class="pre">sys.getrecursionlimit</span></code> and
<code class="docutils literal notranslate"><span class="pre">sys.setrecursionlimit</span></code> to reduce the effect of the additional stack frames.</p>
<p>If <code class="docutils literal notranslate"><span class="pre">sys</span></code> is reset by user code, such as with <code class="docutils literal notranslate"><span class="pre">importlib.reload(sys)</span></code>,
IDLE’s changes are lost and input from the keyboard and output to the screen
will not work correctly.</p>
<p>When user code raises SystemExit either directly or by calling sys.exit, IDLE
returns to a Shell prompt instead of exiting.</p>
<code class="docutils literal notranslate"><span class="pre">sys.setrecursionlimit</span></code> to reduce the effect of the additional stack
frames.</p>
<p>When user code raises SystemExit either directly or by calling sys.exit,
IDLE returns to a Shell prompt instead of exiting.</p>
</div>
<div class="section" id="user-output-in-shell">
<h3>User output in Shell<a class="headerlink" href="#user-output-in-shell" title="Permalink to this headline"></a></h3>
@ -949,8 +949,8 @@ also used for testing.</p>
<li><a href="https://www.python.org/">Python</a> &#187;</li>
<li>
<a href="../index.html">3.10.0a1 Documentation</a> &#187;
<li id="cpython-language-and-version">
<a href="../index.html">3.10.0a5 Documentation</a> &#187;
</li>
<li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> &#187;</li>
@ -974,7 +974,7 @@ also used for testing.</p>
</ul>
</div>
<div class="footer">
&copy; <a href="../copyright.html">Copyright</a> 2001-2020, Python Software Foundation.
&copy; <a href="../copyright.html">Copyright</a> 2001-2021, Python Software Foundation.
<br />
The Python Software Foundation is a non-profit corporation.
@ -982,7 +982,7 @@ also used for testing.</p>
<br />
<br />
Last updated on Oct 20, 2020.
Last updated on Feb 21, 2021.
<a href="https://docs.python.org/3/bugs.html">Found a bug</a>?
<br />