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<chapter id="plpython">

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

execution environment, further restricts it to prevent the use of

the file <function>open</> call, and allows only modules from a

specific list to be imported. Presently, that list includes:

<literal>array</>, <>bisect</>, <>binascii</>, <>calendar</>,

<>cmath</>, <>codecs</>, <>errno</>, <>marshal</>, <>math</>,

<>md5</>, <>mpz</>, <>operator</>, <>pcre</>, <>pickle</>,

<>random</>, <>re</>, <>regex</>, <>sre</>, <>sha</>, <>string</>,

<>StringIO</>, <>struct</>, <>time</>, <>whrandom</>, and

<>zlib</>.

<literal>array</>, <literal>bisect</>, <literal>binascii</>,

<literal>calendar</>, <literal>cmath</>, <literal>codecs</>,

<literal>errno</>, <literal>marshal</>, <literal>math</>, <literal>md5</>,

<literal>mpz</>, <literal>operator</>, <literal>pcre</>,

<literal>pickle</>, <literal>random</>, <literal>re</>, <literal>regex</>,

<literal>sre</>, <literal>sha</>, <literal>string</>, <literal>StringIO</>,

<literal>struct</>, <literal>time</>, <literal>whrandom</>, and

<literal>zlib</>.

</para>

</sect1>