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Document which Python environment variables affect PL/Python

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Peter Eisentraut 2010-08-05 18:36:31 +00:00
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doc/src/sgml/plpython.sgml
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<!-- $PostgreSQL: pgsql/doc/src/sgml/plpython.sgml,v 1.51 2010/07/08 18:42:12 petere Exp $ --> <!-- $PostgreSQL: pgsql/doc/src/sgml/plpython.sgml,v 1.51.2.1 2010/08/05 18:36:31 petere Exp $ -->
<chapter id="plpython"> <chapter id="plpython">
<title>PL/Python - Python Procedural Language</title> <title>PL/Python - Python Procedural Language</title>
@ -958,4 +958,64 @@ $$ LANGUAGE plpythonu;
</para> </para>
</sect1> </sect1>
<sect1 id="plpython-envar">
<title>Environment Variables</title>
<para>
Some of the environment variables that are accepted by the Python
interpreter can also be used to affect PL/Python behavior. They
would need to be set in the environment of the main PostgreSQL
server process, for example in a start script. The available
environment variables depend on the version of Python; see the
Python documentation for details. At the time of this writing, the
following environment variables have an affect on PL/Python,
assuming an adequate Python version:
<itemizedlist>
<listitem>
<para><envar>PYTHONHOME</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONPATH</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONY2K</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONOPTIMIZE</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONDEBUG</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONVERBOSE</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONCASEOK</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONDONTWRITEBYTECODE</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONIOENCODING</envar></para>
</listitem>
<listitem>
<para><envar>PYTHONUSERBASE</envar></para>
</listitem>
</itemizedlist>
(It appears to be a Python implementation detail beyond the control
of PL/Python that some of the environment variables listed on
the <command>python</command> man page are only effective in a
command-line interpreter and not an embedded Python interpreter.)
</para>
</sect1>
</chapter> </chapter>