hhb added inline comments.
================
Comment at: lldb/scripts/get_relative_lib_dir.py:26
split_libdir = arch_specific_libdir.split(os.sep)
- lib_re = re.compile(r"^lib.+$")
+ lib_re = re.compile(r"^lib.*$")
----------------
mgorny wrote:
> hhb wrote:
> > mgorny wrote:
> > > hhb wrote:
> > > > mgorny wrote:
> > > > > hhb wrote:
> > > > > > If we go this way, should we always use LLDB_PYTHON_RELATIVE_LIBDIR
> > > > > > in ScriptInterpreterPython.cpp, and add some code to make sure it
> > > > > > is defined? Because all assumption of the path can be wrong.
> > > > > >
> > > > > > After the change here, I think POSIX will always use
> > > > > > LLDB_PYTHON_RELATIVE_LIBDIR. But for windows, the path is still
> > > > > > hard coded to lib/site-packages.
> > > > > >
> > > > > > (maybe finishSwigPythonLLDB.py / make_symlink() can also be updated
> > > > > > to use os.path.relpath? )
> > > > > Actually, I think we can kill all this logic by simply passing `''`
> > > > > as prefix, as I did in the CMake part.
> > > > I'm not sure. On my machine:
> > > >
> > > > $ python3
> > > > Python 3.6.8 (default, Jan 3 2019, 03:42:36)
> > > > [GCC 8.2.0] on linux
> > > > Type "help", "copyright", "credits" or "license" for more information.
> > > > \>>> import distutils.sysconfig
> > > > \>>> distutils.sysconfig.get_python_lib(True, False)
> > > > '/usr/lib/python3/dist-packages'
> > > > \>>> distutils.sysconfig.get_python_lib(True, False, '')
> > > > 'lib/python3/dist-packages'
> > > > \>>> distutils.sysconfig.get_python_lib(True, False, '/src/lib')
> > > > '/src/lib/lib/python3.6/site-packages'
> > > >
> > > Hm, that's interesting. The documentation says:
> > >
> > > > If 'prefix' is supplied, use it instead of sys.base_prefix or
> > > > sys.base_exec_prefix -- i.e., ignore 'plat_specific'.
> > >
> > > So apparently first arg being true is meaningless then. Maybe we should
> > > go for `get_python_lib(False, False, '')`?
> > Well I checked the code. plat_specific IS ignored. But it will test whether
> > prefix "is default".
> >
> > ```
> > is_default_prefix = not prefix or os.path.normpath(prefix) in ('/usr',
> > '/usr/local')
> > ```
> >
> > And do things differently based on that. Sigh..
> I'm looking through the code of CPython and I don't see `dist-packages`
> anywhere. Is this some local distro patching or something?
>
> What I'm really wondering is whether we need to split `.so` and `.py`
> modules. Technically distutils does that but it seems to use the same path
> for both on all platforms I see in `INSTALL_SCHEMES`.
It is an Debian patch.
https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1814653
What make things worse, the path returned by get_python_lib() may not be in
sys.path(). But I guess that's their issue.
https://bugs.launchpad.net/ubuntu/+source/python3-defaults/+bug/1814653
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D67890/new/
https://reviews.llvm.org/D67890
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