tree 4297ccc23bcc264d42ddefe6279c406fb14ae27d
parent 4cf16166c0fd14cafb89a8c2452fe1f21bca1d8c
author Yegor Yefremov <yegorslists@googlemail.com> 1463519955 +0200
committer Thomas Petazzoni <thomas.petazzoni@free-electrons.com> 1464293255 +0200

python/python3: globalize *.pyc files compilation

Currently, each python package (be it the python interpreter package
itself or external python modules) is responsible for compiling its
.py into .pyc files. Unfortunately, this is not ideal as some packages
only install .py files without compiling them into .pyc files. In this
case, if the Buildroot configuration specifies to keep only the .pyc
files, the .py files are removed and lost.

To address this, this commit changes the logic by making the
compilation of .pyc files a global operation: the python interpreter
packages register a target finalize hook that is in charge of
compiling all installed .py files.

The *.pyc generation on a per package basis is disabled in the
python-package infrastructure by passing the "--no-compile" option to
setup.py.

The *.pyc generation for the Python interpreter internal modules is
disabled through --disable-pyc-build configure option.

A small helper script is used to perform the compilation, the purpose
of this script is to abort the compilation process if one of the .py
file cannot be compiled. It has been provided by Samuel Martin and
integrated into this commit.

Signed-off-by: Yegor Yefremov <yegorslists@googlemail.com>
Cc: Samuel Martin <s.martin49@gmail.com>
[Thomas:
 - rework for python 3.5
 - integrate Samuel proposal that allows to detect compilation
   failures.]
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Reviewed-by: Samuel Martin <s.martin49@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>