py3versions
List installed Python 3 interpreter versions
TLDR
SYNOPSIS
py3versions [options]
DESCRIPTION
py3versions reports information about Python 3 interpreter versions available on Debian and Ubuntu systems. It distinguishes between installed versions, supported versions for the distribution, and the default version used by the system.The tool is part of Debian's python3-minimal package and is primarily used by packaging tools and maintainer scripts to determine which Python versions to compile against or clean up. The -i flag shows installed versions, -s shows supported versions, and -d shows the default. The supported list is ordered lowest to highest with the default version last.
PARAMETERS
-i, --installed
Show installed supported python3 versions.-s, --supported
Show supported python3 versions for this distribution.-d, --default
Show the default python3 version.-r, --requested
Read the X-Python3-Version field from debian/control and show matching versions.-v, --version
Limit output to version numbers only (e.g., 3.10 instead of python3.10).
CAVEATS
Debian/Ubuntu specific. Part of python3-minimal.
HISTORY
py3versions is a Debian utility for Python 3 version management.
SEE ALSO
python3(1), pyversions(1), update-alternatives(1)
