Re: PYTHON_EXT_SUFFIX value for shared libraries, pyc files and others

Michael Zhilin wrote:
> Hi,
> 
> I have a problem with PYTHON_EXT_SUFFIX when I try to build ports 
> (including python) with the option WITH_DEBUG.
> 
> I want to build subset of ports with WITH_DEBUG by poudriere, but 
> several python package builds have failed on phase "package" due to 
> missing artifacts. The root cause of failure is that ports uses same 
> macro PYTHON_EXT_SUFFIX for shared libraries and pyc files, but actual 
> file names have different suffixes:
>   - pyc files have the suffix ".cpython-39" as expected.
>   - so files have the suffix ".cpython-39d".
> 
> The "d" is ${PYTHON_ABIVER} and actual ABI flags of Python build. 
> According to Python specifications, all pyc files must have a suffix 
> without ABI flags. Shared libraries have suffixes with ABI flags, but I 
> didn't find any spec about it.
> 
PEP-3147 for byte compilation files (.pyc) and PEP-3149 for extension 
module files (.so).
> The first idea came to me is to add an extra suffix PYTHON_EXTSO_SUFFIX 
> with value ".cpython-${PYTHON_SUFFIX}${PYTHON_ABIVER}". It's easy to add 
> it and replace all occurrences in pkg-plist and Makefile, but it may be 
> hard to maintain it in future.
> 
Looks like some unfinished business from PR 252057. In theory, should be 
able to append ${PYTHON_ABIVER} directly to ${PYTHON_EXT_SUFFIX}, since 
${PYTHON_CMD}-config --abiflags returns the correct flags even if empty. 
Because the ABI changes when you build Python itself under 
--with-pydebug (WITH_DEBUG or DEBUG option), you cannot build only a 
subset of Python ports under WITH_DEBUG; it's an all-or-nothing situation.

Byte compilation files are not compiled or installed when the port is 
built under PEP-517. Compiling and installing byte compilation files 
with distutils/setuptools at build/stage-time will be deprecated. A new 
install-time hook is under development to replace this functionality, 
which has the added benefit of less pkg-plist churn and framework 
maintenance.

-- 
Charlie Li
…nope, still don't have an exit line.