Chapter 45. PL/Python — Python Procedural Language
Table of Contents
The PL/Python procedural language allows Postgres Pro functions and procedures to be written in the Python language.
To install PL/Python in a particular database, use CREATE EXTENSION plpython3u.
Tip
If a language is installed into template1, all subsequently created databases will have the language installed automatically.
PL/Python is only available as an “untrusted” language, meaning it does not offer any way of restricting what users can do in it and is therefore named plpython3u. A trusted variant plpython might become available in the future if a secure execution mechanism is developed in Python. The writer of a function in untrusted PL/Python must take care that the function cannot be used to do anything unwanted, since it will be able to do anything that could be done by a user logged in as the database administrator. Only superusers can create functions in untrusted languages such as plpython3u.
Note
The plpython3u language is supported in Postgres Pro Standard. The corresponding extension is supplied as a separate pre-built package postgrespro-std-15-plpython3 (for the detailed installation instructions, see Chapter 16).