Admittedly, the whole distutils spawn code should be rewritten to use
subprocess.

Regards

Antoine.


On Wed, 26 Feb 2020 17:52:53 -0000
"Elad Lahav" <e2la...@gmail.com> wrote:
> A change to posix_spawnp() fixes the problem for me:
> 
>     diff --git a/Lib/distutils/spawn.py b/Lib/distutils/spawn.py
>     index ceb94945dc..cb69de4242 100644
>     --- a/Lib/distutils/spawn.py
>     +++ b/Lib/distutils/spawn.py
>     @@ -90,7 +90,7 @@ def _spawn_posix(cmd, search_path=1, verbose=0, 
> dry_run=0):
>              return
>          executable = cmd[0]
>          exec_fn = search_path and os.execvp or os.execv
>     -    env = None
>     +    env = os.environ
>          if sys.platform == 'darwin':
>              global _cfg_target, _cfg_target_split
>              if _cfg_target is None:
>     @@ -112,7 +112,7 @@ def _spawn_posix(cmd, search_path=1, verbose=0, 
> dry_run=0):
>                  env = dict(os.environ,
>                             MACOSX_DEPLOYMENT_TARGET=cur_target)
>                  exec_fn = search_path and os.execvpe or os.execve
>     -    pid = os.fork()
>     +    pid = os.posix_spawnp(executable, cmd, env)
>          if pid == 0: # in the child
>              try:
>                  if env is None:
> 
> --Elad


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