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<chapter id="plpython">

<title>PL/Python - Python Procedural Language</title>

New In Python 3.0</ulink> for more information about porting to

Python 3.

</para>

<para>

On most (possibly all) platforms, it is not possible to use

PL/Python based on Python 2 and PL/Python based on Python 3 in the

same session, because the symbols in the dynamic modules will

clash, which will result in crashes of the PostgreSQL server

process. It is possible, however, to use both PL/Python variants

in the same database, from separate sessions.

</para>

</sect1>

<sect1 id="plpython-funcs">