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  <div class="section" id="module-netrc">
<span id="netrc-netrc-file-processing"></span><h1>13.4. <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-mod docutils literal"><span class="pre">netrc</span></tt></a> &#8212; netrc file processing<a class="headerlink" href="#module-netrc" title="Permalink to this headline">¶</a></h1>
<p class="versionadded">
<span class="versionmodified">New in version 1.5.2.</span></p>
<p><strong>Source code:</strong> <a class="reference external" href="http://hg.python.org/cpython/file/2.7/Lib/netrc.py">Lib/netrc.py</a></p>
<hr class="docutils" />
<p>The <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-class docutils literal"><span class="pre">netrc</span></tt></a> class parses and encapsulates the netrc file format used by
the Unix <strong class="program">ftp</strong> program and other FTP clients.</p>
<dl class="class">
<dt id="netrc.netrc">
<em class="property">class </em><tt class="descclassname">netrc.</tt><tt class="descname">netrc</tt><big>(</big><span class="optional">[</span><em>file</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#netrc.netrc" title="Permalink to this definition">¶</a></dt>
<dd><p>A <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-class docutils literal"><span class="pre">netrc</span></tt></a> instance or subclass instance encapsulates data from  a netrc
file.  The initialization argument, if present, specifies the file to parse.  If
no argument is given, the file <tt class="file docutils literal"><span class="pre">.netrc</span></tt> in the user&#8217;s home directory will
be read.  Parse errors will raise <a class="reference internal" href="#netrc.NetrcParseError" title="netrc.NetrcParseError"><tt class="xref py py-exc docutils literal"><span class="pre">NetrcParseError</span></tt></a> with diagnostic
information including the file name, line number, and terminating token.</p>
</dd></dl>

<dl class="exception">
<dt id="netrc.NetrcParseError">
<em class="property">exception </em><tt class="descclassname">netrc.</tt><tt class="descname">NetrcParseError</tt><a class="headerlink" href="#netrc.NetrcParseError" title="Permalink to this definition">¶</a></dt>
<dd><p>Exception raised by the <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-class docutils literal"><span class="pre">netrc</span></tt></a> class when syntactical errors are
encountered in source text.  Instances of this exception provide three
interesting attributes:  <tt class="xref py py-attr docutils literal"><span class="pre">msg</span></tt> is a textual explanation of the error,
<tt class="xref py py-attr docutils literal"><span class="pre">filename</span></tt> is the name of the source file, and <tt class="xref py py-attr docutils literal"><span class="pre">lineno</span></tt> gives the
line number on which the error was found.</p>
</dd></dl>

<div class="section" id="netrc-objects">
<span id="id1"></span><h2>13.4.1. netrc Objects<a class="headerlink" href="#netrc-objects" title="Permalink to this headline">¶</a></h2>
<p>A <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-class docutils literal"><span class="pre">netrc</span></tt></a> instance has the following methods:</p>
<dl class="method">
<dt id="netrc.netrc.authenticators">
<tt class="descclassname">netrc.</tt><tt class="descname">authenticators</tt><big>(</big><em>host</em><big>)</big><a class="headerlink" href="#netrc.netrc.authenticators" title="Permalink to this definition">¶</a></dt>
<dd><p>Return a 3-tuple <tt class="docutils literal"><span class="pre">(login,</span> <span class="pre">account,</span> <span class="pre">password)</span></tt> of authenticators for <em>host</em>.
If the netrc file did not contain an entry for the given host, return the tuple
associated with the &#8216;default&#8217; entry.  If neither matching host nor default entry
is available, return <tt class="docutils literal"><span class="pre">None</span></tt>.</p>
</dd></dl>

<dl class="method">
<dt id="netrc.netrc.__repr__">
<tt class="descclassname">netrc.</tt><tt class="descname">__repr__</tt><big>(</big><big>)</big><a class="headerlink" href="#netrc.netrc.__repr__" title="Permalink to this definition">¶</a></dt>
<dd><p>Dump the class data as a string in the format of a netrc file. (This discards
comments and may reorder the entries.)</p>
</dd></dl>

<p>Instances of <a class="reference internal" href="#module-netrc" title="netrc: Loading of .netrc files."><tt class="xref py py-class docutils literal"><span class="pre">netrc</span></tt></a> have public instance variables:</p>
<dl class="attribute">
<dt id="netrc.netrc.hosts">
<tt class="descclassname">netrc.</tt><tt class="descname">hosts</tt><a class="headerlink" href="#netrc.netrc.hosts" title="Permalink to this definition">¶</a></dt>
<dd><p>Dictionary mapping host names to <tt class="docutils literal"><span class="pre">(login,</span> <span class="pre">account,</span> <span class="pre">password)</span></tt> tuples.  The
&#8216;default&#8217; entry, if any, is represented as a pseudo-host by that name.</p>
</dd></dl>

<dl class="attribute">
<dt id="netrc.netrc.macros">
<tt class="descclassname">netrc.</tt><tt class="descname">macros</tt><a class="headerlink" href="#netrc.netrc.macros" title="Permalink to this definition">¶</a></dt>
<dd><p>Dictionary mapping macro names to string lists.</p>
</dd></dl>

<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Passwords are limited to a subset of the ASCII character set. Versions of
this module prior to 2.3 were extremely limited.  Starting with 2.3, all
ASCII punctuation is allowed in passwords.  However, note that whitespace and
non-printable characters are not allowed in passwords.  This is a limitation
of the way the .netrc file is parsed and may be removed in the future.</p>
</div>
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  <h3><a href="../contents.html">Table Of Contents</a></h3>
  <ul>
<li><a class="reference internal" href="#">13.4. <tt class="docutils literal"><span class="pre">netrc</span></tt> &#8212; netrc file processing</a><ul>
<li><a class="reference internal" href="#netrc-objects">13.4.1. netrc Objects</a></li>
</ul>
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</ul>

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