05-14-2019
Yes I am well aware of the differences between py2 and py3 lol I have had to convert a handful of python scripts from 2 to 3 in the past. As far as I know neither the Linux OS or the DOS OS has any dependencies on Python. No I just need to temporarily move from py3 to py2 so that I can compile an older program and I would like to do it with update-alternatives so that I can easily change back after I compile the program.
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LEARN ABOUT DEBIAN
pycentral
PYCENTRAL() PYCENTRAL()
NAME
pycentral - register and build utility for Python packages
SYNOPSIS
pycentral [-h] [-v] <cmd> [<cmd options>] [<args>]
DESCRIPTION
pycentral
provides support for installing python modules independent
of the current installed Python version and handling
byte-compilation and -removal tasks in installation scripts.
OPTIONS
-v, --version
Limit the output to the version numbers of the python versions.
-h, --help
Print a help text.
pycentral has the following sub commands. For fine grained help, call: pycentral <cmd>.
bccompile
Byte compile .py files in a package.
bcremove
Remove the byte compiled .py files.
list List all managed files.
pkginstall
Make a package available for all supported runtimes.
pkgprepare
Prepare a package for all supported runtimes.
pkgremove
Remove a package installed for all supported runtimes.
pkglist
List pycentral-managed files of a package for all supported runtimes.
rtinstall
Make installed packages available for this runtime.
rtremove
Remove packages installed for this runtime.
updatedefault
Update the default python version.
debhelper
move files to pycentral locaation, variable substitutions (called by dh_pycentral).
pycentraldir <package>
Show the installation directory used by pycentral for <package>.
showdefault
Show default python version number. Deprecated, use pyversions(1)
showsupported
Show the supported python versions. Deprecated, use pyversions(1)
showversions
Show version numbers of supported python versions. Deprecated, use pyversions(1) dh_pycentral, should not be called directly).
version
Show the pycentral version.
FILES
/etc/python/debian_config is searched for the attribute overwrite-local. If set to 1, or True, existing files in
/usr/lib/pythonX.Y/*-packages are overwritten with symbolic links to the pycentral install area. The default is to abort the installation
of a package, when files already exist. This behaviour may be useful, when python libraries were manually installed into this directory.
The attribute byte-compile can be set to a comma separated list of the values standard and optimze to indicate how files should be byte-
compiled.
SEE ALSO
pyversions(1), Python policy.
AUTHOR
Matthias Klose
PYCENTRAL()