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<H2><A NAME="SECTION008120000000000000000"></A>
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6.1.2 File Object Creation 
</H2>

<P>
These functions create new file objects.

<P>
<dl><dt><b><a name="l2h-891"><tt class=function>fdopen</tt></a></b> (<var>fd</var><big>[</big><var>, mode</var><big>[</big><var>, bufsize</var><big>]</big><big>]</big>)
<dd>
Return an open file object connected to the file descriptor <var>fd</var>.
The <var>mode</var> and <var>bufsize</var> arguments have the same meaning as
the corresponding arguments to the built-in <tt class=function>open()</tt>
function.
Availability: Macintosh, Unix, Windows.
</dl>

<P>
<dl><dt><b><a name="l2h-892"><tt class=function>popen</tt></a></b> (<var>command</var><big>[</big><var>, mode</var><big>[</big><var>, bufsize</var><big>]</big><big>]</big>)
<dd>
Open a pipe to or from <var>command</var>.  The return value is an open
file object connected to the pipe, which can be read or written
depending on whether <var>mode</var> is <tt>'r'</tt> (default) or <tt>'w'</tt>.
The <var>bufsize</var> argument has the same meaning as the corresponding
argument to the built-in <tt class=function>open()</tt> function.  The exit status of
the command (encoded in the format specified for <tt class=function>wait()</tt>) is
available as the return value of the <tt class=method>close()</tt> method of the file
object, except that when the exit status is zero (termination without
errors), <tt>None</tt> is returned.
Availability: Unix, Windows.
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