📄 module-repr.html
字号:
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
<html>
<head>
<title>3.21 repr -- Alternate repr() implementation</title>
<META NAME="description" CONTENT="3.21 repr -- Alternate repr() implementation">
<META NAME="keywords" CONTENT="lib">
<META NAME="resource-type" CONTENT="document">
<META NAME="distribution" CONTENT="global">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<link rel="STYLESHEET" href="lib.css" tppabs="http://www.python.org/doc/current/lib/lib.css">
<LINK REL="next" href="module-new.html" tppabs="http://www.python.org/doc/current/lib/module-new.html">
<LINK REL="previous" href="module-pprint.html" tppabs="http://www.python.org/doc/current/lib/module-pprint.html">
<LINK REL="up" href="python.html" tppabs="http://www.python.org/doc/current/lib/python.html">
<LINK REL="next" href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html">
</head>
<body>
<DIV CLASS="navigation"><table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td><A href="PrettyPrinter_Objects.html" tppabs="http://www.python.org/doc/current/lib/PrettyPrinter_Objects.html"><img src="previous.gif" tppabs="http://www.python.org/doc/current/icons/previous.gif" border="0" height="32"
alt="Previous Page" width="32"></A></td>
<td><A href="python.html" tppabs="http://www.python.org/doc/current/lib/python.html"><img src="up.gif" tppabs="http://www.python.org/doc/current/icons/up.gif" border="0" height="32"
alt="Up One Level" width="32"></A></td>
<td><A href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html"><img src="next.gif" tppabs="http://www.python.org/doc/current/icons/next.gif" border="0" height="32"
alt="Next Page" width="32"></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td><A href="contents.html" tppabs="http://www.python.org/doc/current/lib/contents.html"><img src="contents.gif" tppabs="http://www.python.org/doc/current/icons/contents.gif" border="0" height="32"
alt="Contents" width="32"></A></td>
<td><a href="modindex.html" tppabs="http://www.python.org/doc/current/lib/modindex.html" title="Module Index"><img src="modules.gif" tppabs="http://www.python.org/doc/current/icons/modules.gif" border="0" height="32"
alt="Module Index" width="32"></a></td>
<td><A href="genindex.html" tppabs="http://www.python.org/doc/current/lib/genindex.html"><img src="index.gif" tppabs="http://www.python.org/doc/current/icons/index.gif" border="0" height="32"
alt="Index" width="32"></A></td>
</tr></table>
<b class="navlabel">Previous:</b> <a class="sectref" href="PrettyPrinter_Objects.html" tppabs="http://www.python.org/doc/current/lib/PrettyPrinter_Objects.html">3.20.1 PrettyPrinter Objects</A>
<b class="navlabel">Up:</b> <a class="sectref" href="python.html" tppabs="http://www.python.org/doc/current/lib/python.html">3. Python Runtime Services</A>
<b class="navlabel">Next:</b> <a class="sectref" href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html">3.21.1 Repr Objects</A>
<br><hr></DIV>
<!--End of Navigation Panel-->
<H1><A NAME="SECTION0052100000000000000000">
3.21 <tt class="module">repr</tt> --
Alternate <tt class="function">repr()</tt> implementation</A>
</H1>
<P>
<P>
The <tt class="module">repr</tt> module provides a means for producing object
representations with limits on the size of the resulting strings.
This is used in the Python debugger and may be useful in other
contexts as well.
<P>
This module provides a class, an instance, and a function:
<P>
<dl><dt><b><a name='l2h-509'><tt class='class'>Repr</tt></a></b> ()
<dd>
Class which provides formatting services useful in implementing
functions similar to the built-in <tt class="function">repr()</tt>; size limits for
different object types are added to avoid the generation of
representations which are excessively long.
</dl>
<P>
<dl><dt><b><a name='l2h-510'><tt>aRepr</tt></a></b>
<dd>
This is an instance of <tt class="class">Repr</tt> which is used to provide the
<tt class="function">repr()</tt> function described below. Changing the attributes
of this object will affect the size limits used by <tt class="function">repr()</tt>
and the Python debugger.
</dl>
<P>
<dl><dt><b><a name='l2h-511'><tt class='function'>repr</tt></a></b> (<var>obj</var>)
<dd>
This is the <tt class="method">repr()</tt> method of <code>aRepr</code>. It returns a
string similar to that returned by the built-in function of the same
name, but with limits on most sizes.
</dl>
<P>
<p><hr>
<!--Table of Child-Links-->
<A NAME="CHILD_LINKS"><STRONG>Subsections</STRONG></A>
<UL>
<LI><A NAME="tex2html1625"
href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html">3.21.1 Repr Objects </A>
<LI><A NAME="tex2html1626"
href="subclassing-reprs.html" tppabs="http://www.python.org/doc/current/lib/subclassing-reprs.html">3.21.2 Subclassing Repr Objects </A>
</UL>
<!--End of Table of Child-Links-->
<DIV CLASS="navigation"><p><hr><table align="center" width="100%" cellpadding="0" cellspacing="2">
<tr>
<td><A href="PrettyPrinter_Objects.html" tppabs="http://www.python.org/doc/current/lib/PrettyPrinter_Objects.html"><img src="previous.gif" tppabs="http://www.python.org/doc/current/icons/previous.gif" border="0" height="32"
alt="Previous Page" width="32"></A></td>
<td><A href="python.html" tppabs="http://www.python.org/doc/current/lib/python.html"><img src="up.gif" tppabs="http://www.python.org/doc/current/icons/up.gif" border="0" height="32"
alt="Up One Level" width="32"></A></td>
<td><A href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html"><img src="next.gif" tppabs="http://www.python.org/doc/current/icons/next.gif" border="0" height="32"
alt="Next Page" width="32"></A></td>
<td align="center" width="100%">Python Library Reference</td>
<td><A href="contents.html" tppabs="http://www.python.org/doc/current/lib/contents.html"><img src="contents.gif" tppabs="http://www.python.org/doc/current/icons/contents.gif" border="0" height="32"
alt="Contents" width="32"></A></td>
<td><a href="modindex.html" tppabs="http://www.python.org/doc/current/lib/modindex.html" title="Module Index"><img src="modules.gif" tppabs="http://www.python.org/doc/current/icons/modules.gif" border="0" height="32"
alt="Module Index" width="32"></a></td>
<td><A href="genindex.html" tppabs="http://www.python.org/doc/current/lib/genindex.html"><img src="index.gif" tppabs="http://www.python.org/doc/current/icons/index.gif" border="0" height="32"
alt="Index" width="32"></A></td>
</tr></table>
<b class="navlabel">Previous:</b> <a class="sectref" href="PrettyPrinter_Objects.html" tppabs="http://www.python.org/doc/current/lib/PrettyPrinter_Objects.html">3.20.1 PrettyPrinter Objects</A>
<b class="navlabel">Up:</b> <a class="sectref" href="python.html" tppabs="http://www.python.org/doc/current/lib/python.html">3. Python Runtime Services</A>
<b class="navlabel">Next:</b> <a class="sectref" href="Repr-objects.html" tppabs="http://www.python.org/doc/current/lib/Repr-objects.html">3.21.1 Repr Objects</A>
</DIV>
<!--End of Navigation Panel-->
<ADDRESS>
<hr>See <i><a href="about.html" tppabs="http://www.python.org/doc/current/lib/about.html">About this document...</a></i> for information on suggesting changes.
</ADDRESS>
</BODY>
</HTML>
⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -