On Tue, 16 Feb 2016 at 20:59 Mike Kaplinskiy <mike.kaplins...@gmail.com> wrote:
> Hey folks, > > I hope this is the right list for this sort of thing (python-ideas seemed > more far-fetched). > > For some context: there is currently a issue with pex that causes > sys.modules lookups to stop working for __main__. In turns this makes > unittest.run() & pkg_resources.resource_* fail. The root cause is that pex > uses runpy.run_module with alter_sys=False. The fix should be to just pass > alter_sys=True, but that changes sys.argv[0] and various existing pex files > depend on that being the pex file. You can read more at > https://github.com/pantsbuild/pex/pull/211 . > > Conservatively, I'd like to propose adding an argument to disable this > behavior. The current behavior breaks a somewhat reasonable invariant that > you can restart your program via `os.execv([sys.executable] + sys.argv)`. > Moreover it might be user-friendly to add a `argv=sys.argv[1:]` argument to > set & restore the full arguments to the module, where `argv=None` disables > argv[0] switching. > > What do you think? > This probably is best served as a feature request on bugs.python.org since it's not asking for some massive change or new feature but just a minor tweak to a module.
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