Marius Gedminas <marius@gedmin.as> wrote:
> On Tue, Apr 21, 2020 at 09:39:07PM +0200, Dominique Pellé wrote:
> > However vim built with libpython3 (or libpython) unfortunately
> > gives many warnings. This is explained here:
> > https://github.com/python/cpython/blob/master/Misc/README.valgrind
> >
> > I just avoided the warning in libpython3 by doing this
> > on xubuntu-18.04.4:
> >
> > 1) download and build Python3 source code:
> >
> > $ wget https://www.python.org/ftp/python/3.8.2/Python-3.8.2.tar.xz
> > $ tar xvf Python-3.8.2.tar.xz
> > $ ./configure --with-valgrind--enable-shared
> > $ make -j8
> > $ sudo make install
> > $ sudo lddconfig
> >
> > (note the --with-valgrind option which is needed to avoid valgrind errors)
>
> This seems hard. It's easier to export PYTHONMALLOC=malloc before
> running valgrind. Should work with any Python version >= 3.6.
> Worked for me with Python 3.7 from Ubuntu 19.10.
I had tried that with xubuntu-18.04.4 and export PYTHONMALLOC=malloc
did not suppress valgrind errors. Yet ubuntu-18.04 is using Python-3.6.
> I've also used valgrind --suppressions=valgrind-python.supp, with
> https://github.com/python/cpython/blob/master/Misc/valgrind-python.supp
> modified as instructed to uncomment all those _PyObject_Free/_PyObject_Realloc
> suppressions. It didn't help any: I still got hundreds of errors
> without PYTHONMALLOC.
Same.
My solution to rebuild libpython worked for me at least.
Regards
Dominique
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