250 lines
14 KiB
HTML
250 lines
14 KiB
HTML
|
|
||
|
|
<!DOCTYPE html>
|
||
|
|
|
||
|
|
<html xmlns="http://www.w3.org/1999/xhtml">
|
||
|
|
<head>
|
||
|
|
<meta charset="utf-8" />
|
||
|
|
<title>urllib.error — Exception classes raised by urllib.request — Python 3.7.4 documentation</title>
|
||
|
|
<link rel="stylesheet" href="../_static/pydoctheme.css" type="text/css" />
|
||
|
|
<link rel="stylesheet" href="../_static/pygments.css" type="text/css" />
|
||
|
|
|
||
|
|
<script type="text/javascript" id="documentation_options" data-url_root="../" src="../_static/documentation_options.js"></script>
|
||
|
|
<script type="text/javascript" src="../_static/jquery.js"></script>
|
||
|
|
<script type="text/javascript" src="../_static/underscore.js"></script>
|
||
|
|
<script type="text/javascript" src="../_static/doctools.js"></script>
|
||
|
|
<script type="text/javascript" src="../_static/language_data.js"></script>
|
||
|
|
|
||
|
|
<script type="text/javascript" src="../_static/sidebar.js"></script>
|
||
|
|
|
||
|
|
<link rel="search" type="application/opensearchdescription+xml"
|
||
|
|
title="Search within Python 3.7.4 documentation"
|
||
|
|
href="../_static/opensearch.xml"/>
|
||
|
|
<link rel="author" title="About these documents" href="../about.html" />
|
||
|
|
<link rel="index" title="Index" href="../genindex.html" />
|
||
|
|
<link rel="search" title="Search" href="../search.html" />
|
||
|
|
<link rel="copyright" title="Copyright" href="../copyright.html" />
|
||
|
|
<link rel="next" title="urllib.robotparser — Parser for robots.txt" href="urllib.robotparser.html" />
|
||
|
|
<link rel="prev" title="urllib.parse — Parse URLs into components" href="urllib.parse.html" />
|
||
|
|
<link rel="shortcut icon" type="image/png" href="../_static/py.png" />
|
||
|
|
<link rel="canonical" href="https://docs.python.org/3/library/urllib.error.html" />
|
||
|
|
|
||
|
|
<script type="text/javascript" src="../_static/copybutton.js"></script>
|
||
|
|
<script type="text/javascript" src="../_static/switchers.js"></script>
|
||
|
|
|
||
|
|
|
||
|
|
|
||
|
|
<style>
|
||
|
|
@media only screen {
|
||
|
|
table.full-width-table {
|
||
|
|
width: 100%;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
</style>
|
||
|
|
|
||
|
|
|
||
|
|
</head><body>
|
||
|
|
|
||
|
|
<div class="related" role="navigation" aria-label="related navigation">
|
||
|
|
<h3>Navigation</h3>
|
||
|
|
<ul>
|
||
|
|
<li class="right" style="margin-right: 10px">
|
||
|
|
<a href="../genindex.html" title="General Index"
|
||
|
|
accesskey="I">index</a></li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="../py-modindex.html" title="Python Module Index"
|
||
|
|
>modules</a> |</li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="urllib.robotparser.html" title="urllib.robotparser — Parser for robots.txt"
|
||
|
|
accesskey="N">next</a> |</li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="urllib.parse.html" title="urllib.parse — Parse URLs into components"
|
||
|
|
accesskey="P">previous</a> |</li>
|
||
|
|
<li><img src="../_static/py.png" alt=""
|
||
|
|
style="vertical-align: middle; margin-top: -1px"/></li>
|
||
|
|
<li><a href="https://www.python.org/">Python</a> »</li>
|
||
|
|
<li>
|
||
|
|
<span class="language_switcher_placeholder">en</span>
|
||
|
|
<span class="version_switcher_placeholder">3.7.4</span>
|
||
|
|
<a href="../index.html">Documentation </a> »
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li>
|
||
|
|
<li class="nav-item nav-item-2"><a href="internet.html" accesskey="U">Internet Protocols and Support</a> »</li>
|
||
|
|
<li class="right">
|
||
|
|
|
||
|
|
|
||
|
|
<div class="inline-search" style="display: none" role="search">
|
||
|
|
<form class="inline-search" action="../search.html" method="get">
|
||
|
|
<input placeholder="Quick search" type="text" name="q" />
|
||
|
|
<input type="submit" value="Go" />
|
||
|
|
<input type="hidden" name="check_keywords" value="yes" />
|
||
|
|
<input type="hidden" name="area" value="default" />
|
||
|
|
</form>
|
||
|
|
</div>
|
||
|
|
<script type="text/javascript">$('.inline-search').show(0);</script>
|
||
|
|
|
|
||
|
|
</li>
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
</div>
|
||
|
|
|
||
|
|
<div class="document">
|
||
|
|
<div class="documentwrapper">
|
||
|
|
<div class="bodywrapper">
|
||
|
|
<div class="body" role="main">
|
||
|
|
|
||
|
|
<div class="section" id="module-urllib.error">
|
||
|
|
<span id="urllib-error-exception-classes-raised-by-urllib-request"></span><h1><a class="reference internal" href="#module-urllib.error" title="urllib.error: Exception classes raised by urllib.request."><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.error</span></code></a> — Exception classes raised by urllib.request<a class="headerlink" href="#module-urllib.error" title="Permalink to this headline">¶</a></h1>
|
||
|
|
<p><strong>Source code:</strong> <a class="reference external" href="https://github.com/python/cpython/tree/3.7/Lib/urllib/error.py">Lib/urllib/error.py</a></p>
|
||
|
|
<hr class="docutils" />
|
||
|
|
<p>The <a class="reference internal" href="#module-urllib.error" title="urllib.error: Exception classes raised by urllib.request."><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.error</span></code></a> module defines the exception classes for exceptions
|
||
|
|
raised by <a class="reference internal" href="urllib.request.html#module-urllib.request" title="urllib.request: Extensible library for opening URLs."><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.request</span></code></a>. The base exception class is <a class="reference internal" href="#urllib.error.URLError" title="urllib.error.URLError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">URLError</span></code></a>.</p>
|
||
|
|
<p>The following exceptions are raised by <a class="reference internal" href="#module-urllib.error" title="urllib.error: Exception classes raised by urllib.request."><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.error</span></code></a> as appropriate:</p>
|
||
|
|
<dl class="exception">
|
||
|
|
<dt id="urllib.error.URLError">
|
||
|
|
<em class="property">exception </em><code class="descclassname">urllib.error.</code><code class="descname">URLError</code><a class="headerlink" href="#urllib.error.URLError" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>The handlers raise this exception (or derived exceptions) when they run into
|
||
|
|
a problem. It is a subclass of <a class="reference internal" href="exceptions.html#OSError" title="OSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a>.</p>
|
||
|
|
<dl class="attribute">
|
||
|
|
<dt id="urllib.error.URLError.reason">
|
||
|
|
<code class="descname">reason</code><a class="headerlink" href="#urllib.error.URLError.reason" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>The reason for this error. It can be a message string or another
|
||
|
|
exception instance.</p>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<div class="versionchanged">
|
||
|
|
<p><span class="versionmodified changed">Changed in version 3.3: </span><a class="reference internal" href="#urllib.error.URLError" title="urllib.error.URLError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">URLError</span></code></a> has been made a subclass of <a class="reference internal" href="exceptions.html#OSError" title="OSError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">OSError</span></code></a> instead
|
||
|
|
of <a class="reference internal" href="exceptions.html#IOError" title="IOError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">IOError</span></code></a>.</p>
|
||
|
|
</div>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="exception">
|
||
|
|
<dt id="urllib.error.HTTPError">
|
||
|
|
<em class="property">exception </em><code class="descclassname">urllib.error.</code><code class="descname">HTTPError</code><a class="headerlink" href="#urllib.error.HTTPError" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>Though being an exception (a subclass of <a class="reference internal" href="#urllib.error.URLError" title="urllib.error.URLError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">URLError</span></code></a>), an
|
||
|
|
<a class="reference internal" href="#urllib.error.HTTPError" title="urllib.error.HTTPError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">HTTPError</span></code></a> can also function as a non-exceptional file-like return
|
||
|
|
value (the same thing that <a class="reference internal" href="urllib.request.html#urllib.request.urlopen" title="urllib.request.urlopen"><code class="xref py py-func docutils literal notranslate"><span class="pre">urlopen()</span></code></a> returns). This
|
||
|
|
is useful when handling exotic HTTP errors, such as requests for
|
||
|
|
authentication.</p>
|
||
|
|
<dl class="attribute">
|
||
|
|
<dt id="urllib.error.HTTPError.code">
|
||
|
|
<code class="descname">code</code><a class="headerlink" href="#urllib.error.HTTPError.code" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>An HTTP status code as defined in <span class="target" id="index-0"></span><a class="rfc reference external" href="https://tools.ietf.org/html/rfc2616.html"><strong>RFC 2616</strong></a>. This numeric value corresponds
|
||
|
|
to a value found in the dictionary of codes as found in
|
||
|
|
<a class="reference internal" href="http.server.html#http.server.BaseHTTPRequestHandler.responses" title="http.server.BaseHTTPRequestHandler.responses"><code class="xref py py-attr docutils literal notranslate"><span class="pre">http.server.BaseHTTPRequestHandler.responses</span></code></a>.</p>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="attribute">
|
||
|
|
<dt id="urllib.error.HTTPError.reason">
|
||
|
|
<code class="descname">reason</code><a class="headerlink" href="#urllib.error.HTTPError.reason" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>This is usually a string explaining the reason for this error.</p>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="attribute">
|
||
|
|
<dt id="urllib.error.HTTPError.headers">
|
||
|
|
<code class="descname">headers</code><a class="headerlink" href="#urllib.error.HTTPError.headers" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>The HTTP response headers for the HTTP request that caused the
|
||
|
|
<a class="reference internal" href="#urllib.error.HTTPError" title="urllib.error.HTTPError"><code class="xref py py-exc docutils literal notranslate"><span class="pre">HTTPError</span></code></a>.</p>
|
||
|
|
<div class="versionadded">
|
||
|
|
<p><span class="versionmodified added">New in version 3.4.</span></p>
|
||
|
|
</div>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
<dl class="exception">
|
||
|
|
<dt id="urllib.error.ContentTooShortError">
|
||
|
|
<em class="property">exception </em><code class="descclassname">urllib.error.</code><code class="descname">ContentTooShortError</code><span class="sig-paren">(</span><em>msg</em>, <em>content</em><span class="sig-paren">)</span><a class="headerlink" href="#urllib.error.ContentTooShortError" title="Permalink to this definition">¶</a></dt>
|
||
|
|
<dd><p>This exception is raised when the <a class="reference internal" href="urllib.request.html#urllib.request.urlretrieve" title="urllib.request.urlretrieve"><code class="xref py py-func docutils literal notranslate"><span class="pre">urlretrieve()</span></code></a>
|
||
|
|
function detects that
|
||
|
|
the amount of the downloaded data is less than the expected amount (given by
|
||
|
|
the <em>Content-Length</em> header). The <code class="xref py py-attr docutils literal notranslate"><span class="pre">content</span></code> attribute stores the
|
||
|
|
downloaded (and supposedly truncated) data.</p>
|
||
|
|
</dd></dl>
|
||
|
|
|
||
|
|
</div>
|
||
|
|
|
||
|
|
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div class="sphinxsidebar" role="navigation" aria-label="main navigation">
|
||
|
|
<div class="sphinxsidebarwrapper">
|
||
|
|
<h4>Previous topic</h4>
|
||
|
|
<p class="topless"><a href="urllib.parse.html"
|
||
|
|
title="previous chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.parse</span></code> — Parse URLs into components</a></p>
|
||
|
|
<h4>Next topic</h4>
|
||
|
|
<p class="topless"><a href="urllib.robotparser.html"
|
||
|
|
title="next chapter"><code class="xref py py-mod docutils literal notranslate"><span class="pre">urllib.robotparser</span></code> — Parser for robots.txt</a></p>
|
||
|
|
<div role="note" aria-label="source link">
|
||
|
|
<h3>This Page</h3>
|
||
|
|
<ul class="this-page-menu">
|
||
|
|
<li><a href="../bugs.html">Report a Bug</a></li>
|
||
|
|
<li>
|
||
|
|
<a href="https://github.com/python/cpython/blob/3.7/Doc/library/urllib.error.rst"
|
||
|
|
rel="nofollow">Show Source
|
||
|
|
</a>
|
||
|
|
</li>
|
||
|
|
</ul>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
</div>
|
||
|
|
<div class="clearer"></div>
|
||
|
|
</div>
|
||
|
|
<div class="related" role="navigation" aria-label="related navigation">
|
||
|
|
<h3>Navigation</h3>
|
||
|
|
<ul>
|
||
|
|
<li class="right" style="margin-right: 10px">
|
||
|
|
<a href="../genindex.html" title="General Index"
|
||
|
|
>index</a></li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="../py-modindex.html" title="Python Module Index"
|
||
|
|
>modules</a> |</li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="urllib.robotparser.html" title="urllib.robotparser — Parser for robots.txt"
|
||
|
|
>next</a> |</li>
|
||
|
|
<li class="right" >
|
||
|
|
<a href="urllib.parse.html" title="urllib.parse — Parse URLs into components"
|
||
|
|
>previous</a> |</li>
|
||
|
|
<li><img src="../_static/py.png" alt=""
|
||
|
|
style="vertical-align: middle; margin-top: -1px"/></li>
|
||
|
|
<li><a href="https://www.python.org/">Python</a> »</li>
|
||
|
|
<li>
|
||
|
|
<span class="language_switcher_placeholder">en</span>
|
||
|
|
<span class="version_switcher_placeholder">3.7.4</span>
|
||
|
|
<a href="../index.html">Documentation </a> »
|
||
|
|
</li>
|
||
|
|
|
||
|
|
<li class="nav-item nav-item-1"><a href="index.html" >The Python Standard Library</a> »</li>
|
||
|
|
<li class="nav-item nav-item-2"><a href="internet.html" >Internet Protocols and Support</a> »</li>
|
||
|
|
<li class="right">
|
||
|
|
|
||
|
|
|
||
|
|
<div class="inline-search" style="display: none" role="search">
|
||
|
|
<form class="inline-search" action="../search.html" method="get">
|
||
|
|
<input placeholder="Quick search" type="text" name="q" />
|
||
|
|
<input type="submit" value="Go" />
|
||
|
|
<input type="hidden" name="check_keywords" value="yes" />
|
||
|
|
<input type="hidden" name="area" value="default" />
|
||
|
|
</form>
|
||
|
|
</div>
|
||
|
|
<script type="text/javascript">$('.inline-search').show(0);</script>
|
||
|
|
|
|
||
|
|
</li>
|
||
|
|
|
||
|
|
</ul>
|
||
|
|
</div>
|
||
|
|
<div class="footer">
|
||
|
|
© <a href="../copyright.html">Copyright</a> 2001-2019, Python Software Foundation.
|
||
|
|
<br />
|
||
|
|
The Python Software Foundation is a non-profit corporation.
|
||
|
|
<a href="https://www.python.org/psf/donations/">Please donate.</a>
|
||
|
|
<br />
|
||
|
|
Last updated on Jul 13, 2019.
|
||
|
|
<a href="../bugs.html">Found a bug</a>?
|
||
|
|
<br />
|
||
|
|
Created using <a href="http://sphinx.pocoo.org/">Sphinx</a> 2.0.1.
|
||
|
|
</div>
|
||
|
|
|
||
|
|
</body>
|
||
|
|
</html>
|