py3versions Man page



py3versions – print python3 version information


py3versions [-h] [-v] []


py3versions prints information about installed, supported python3 run‐
times, the default runtime, and parses the information of the Python‐
Version fields in the package control file for Python3.


-d, –default
Show the default python3 version.

-s, –supported
Show the supported python3 versions. List is lowest version to
highest version with the default version last (e.g. python3.4
python3.6 python3.5 if python3.4, 3.5, and 3.6 are supported,
but python3.5 is the default python3).

-r, –requested [|] Reads the value of the X-Python3-Version field in the source
section of a control file and shows all matching python3 ver‐
sions. The parameter is interpreted as a version string, if it
is not the name of a file. If the X-Python3-Version field is
missing, it will fall back to list the supported Python3 ver‐
sions after checking debian/control. Versions less than 3 are
ignored. The keyword all is ignored because it covers all
Python2 versions. The former keyword current is not supported
at all in Python3. Uses the same sort order as the -s, –sup‐
ported option.

-i, –installed
Show the installed supported python3 versions.

-v, –version
Limit the output to the version numbers of the python3 versions.

-h, –help
Print a help text.


Python policy.


Matthias Klose


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