py3versions - print python3 version information

       Matthias Klose

                                                                                                  PY3VERSIONS(1)

py3versions  prints  information  about  installed,  supported python3 runtimes, the default runtime, and
       parses the information of the PythonVersion fields in the package control file for Python3.

       py3versions - print python3 version information

-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[<versionstring>|<controlfile>]
              Reads the value of the X-Python3-Version field in the source section of a control file  and  shows
              all matching python3 versions.  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 versions 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, --supported option.

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

       --min-supported
              Show the minimum supported python3 version.

       --max-supported
              Show the maximum supported python3 version.

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

       -h,--help
              Print a help text.

       Python policy.

py3versions[-h][-v][<options>]