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<title>6.25 fnmatch -- Unix filename pattern matching</title>
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<H1><A NAME="SECTION0082500000000000000000">
6.25 <tt class="module">fnmatch</tt> --
         <span class="Unix">Unix</span> filename pattern matching</A>
</H1>

<P>
<A NAME="module-fnmatch"></A>

<P>
<a id='l2h-2345' xml:id='l2h-2345'></a>

<P>
This module provides support for <span class="Unix">Unix</span> shell-style wildcards, which
are <em>not</em> the same as regular expressions (which are documented
in the <tt class="module"><a href="module-re.html">re</a></tt><a id='l2h-2346' xml:id='l2h-2346'></a> module).  The special
characters used in shell-style wildcards are:

<P>
<div class="center"><table class="realtable">
  <thead>
    <tr>
      <th class="center">Pattern</th>
      <th class="left"  >Meaning</th>
      </tr>
    </thead>
  <tbody>
    <tr><td class="center" valign="baseline"><code>*</code></td>
        <td class="left"  >matches everything</td></tr>
    <tr><td class="center" valign="baseline"><code>?</code></td>
        <td class="left"  >matches any single character</td></tr>
    <tr><td class="center" valign="baseline"><code>[<var>seq</var>]</code></td>
        <td class="left"  >matches any character in <var>seq</var></td></tr>
    <tr><td class="center" valign="baseline"><code>[!<var>seq</var>]</code></td>
        <td class="left"  >matches any character not in <var>seq</var></td></tr></tbody>
</table></div>

<P>
Note that the filename separator (<code>'/'</code> on <span class="Unix">Unix</span>) is <em>not</em>
special to this module.  See module
<tt class="module"><a href="module-glob.html">glob</a></tt><a id='l2h-2347' xml:id='l2h-2347'></a> for pathname expansion
(<tt class="module"><a href="module-glob.html">glob</a></tt> uses <tt class="function">fnmatch()</tt> to match pathname
segments).  Similarly, filenames starting with a period are
not special for this module, and are matched by the <code>*</code> and
<code>?</code> patterns.

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-2342' xml:id='l2h-2342' class="function">fnmatch</tt></b>(</nobr></td>
  <td><var>filename, pattern</var>)</td></tr></table></dt>
<dd>
Test whether the <var>filename</var> string matches the <var>pattern</var>
string, returning true or false.  If the operating system is
case-insensitive, then both parameters will be normalized to all
lower- or upper-case before the comparison is performed.  If you
require a case-sensitive comparison regardless of whether that's
standard for your operating system, use <tt class="function">fnmatchcase()</tt>
instead.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-2343' xml:id='l2h-2343' class="function">fnmatchcase</tt></b>(</nobr></td>
  <td><var>filename, pattern</var>)</td></tr></table></dt>
<dd>
Test whether <var>filename</var> matches <var>pattern</var>, returning true or
false; the comparison is case-sensitive.
</dl>

<P>
<dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline">
  <td><nobr><b><tt id='l2h-2344' xml:id='l2h-2344' class="function">filter</tt></b>(</nobr></td>
  <td><var>names, pattern</var>)</td></tr></table></dt>
<dd>
Return the subset of the list of <var>names</var> that match <var>pattern</var>.
It is the same as <code>[n for n in names if fnmatch(n, pattern)]</code>, but
implemented more efficiently.

<span class="versionnote">New in version 2.2.</span>

</dl>

<P>
<div class="seealso">
  <p class="heading">See Also:</p>

  <dl compact="compact" class="seemodule">
    <dt>Module <b><tt class="module"><a href="module-glob.html">glob</a></tt>:</b>
    <dd><span class="Unix">Unix</span> shell-style path expansion.
  </dl>
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<span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span>
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