Implemented in: https://github.com/python/cpython/pull/27926
We keep using it thou, because this is Python version agnostic.
Once we drop support for anything older than 3.11, we can remove it.
That'll be around ~2030. Assuming the world still exists by then.
- For depth, use sys.getrecursionlimit()
- the default from bytecompile2
- we'll get a RecursionError before it's exceeded, anyway
- Set real_libdir locally
This allows us to maintain our own BuildRoot Policy scripts in an easier way.
This change needs to be coordinated with the removal of the files from redhat-rpm-config.
redhat-rpm-config requires python-srpm-macros, so no change is expected for the packagers.
Avoid using the full path and instead rely on PATH being correctly set
up to find the executable.
This fixes byte compilation for python2.7 when doing flatpak module
builds where python2.7 can be in either /usr/bin or /app/bin, depending
on how it's compiled.
The Python compileall2 module in /usr/lib/rpm/redhat/
can be executed by various different Python interpreters.
We don't want to write several different `*.pyc` files
to this location - in most cases, that's not possible,
but somebody might run this as root.
Resolves: rhbz#1595265
The problem this change is intended to solve is with how `real_libdir`
is calculated. Let's assume we want to recursively byte-compile all
`*.py` files in
`/builddir/build/BUILDROOT/python-scales-1.0.9-250.fc32.x86_64/usr/lib/python3.8`.
Then, `real_libdir` is this path without `$RPM_BUILD_ROOT` with
the filename at the end which displays in the error message like this:
```
Bytecompiling .py files below /builddir/build/BUILDROOT/python-scales-1.0.9-250.fc32.x86_64/usr/lib/python3.8 using /usr/bin/python3.8
*** Error compiling '/builddir/build/BUILDROOT/python-scales-1.0.9-250.fc32.x86_64/usr/lib/python3.8/site-packages/greplin/bar.py'...
File "/usr/lib/python3.8/bar.py", line 1
import sin from math
^
SyntaxError: invalid syntax
```
`/usr/lib/python3.8/bar.py` is obviously wrong.
One of the new features of the `compileall2` module (which will
be available in stdlib in Python 3.9) is that the path byte-compiled to
`*.pyc` files is calculated for each file. This means that by using
`-s` and `-p` we can strip `$RPM_BUILD_ROOT` and prepend `/` for each
file individually which will fix the problem.
```
Bytecompiling .py files below /builddir/build/BUILDROOT/python-scales-1.0.9-250.fc32.x86_64/usr/lib/python3.8 using /usr/bin/python3.8
*** Error compiling '/builddir/build/BUILDROOT/python-scales-1.0.9-250.fc32.x86_64/usr/lib/python3.8/site-packages/greplin/bar.py'...
File "/usr/lib/python3.8/site-packages/greplin/bar.py", line 1
import sin from math
^
SyntaxError: invalid syntax
```
This change has an effect only for Python >= 3.4.
Miro Hrončok
Petr Viktorin
Ben Burton
Kalev Lember
Lumir Balhar
Tomas Orsava