[Python-Dev] package imports, sys.path and os.chdir()

Benjamin Peterson benjamin at python.org
Sat Apr 28 15:35:41 CEST 2012

2012/4/28 Nick Coghlan <ncoghlan at gmail.com>:
> On Sat, Apr 28, 2012 at 6:00 AM, Brett Cannon <brett at python.org> wrote:
>> I'm personally in favour of changing the insertion of '' to sys.path to
>> inserting the cwd when the interpreter is launched.
> I'm not, because it breaks importing from the interactive prompt if
> you change directory after starting the session.
> The existing workaround for applications is pretty trivial:
>  # Somewhere in your initialisation code
>  for i, entry in enumerate(sys.path):
>      sys.path[i] = os.path.abspath(i)
> The fix for the import system is similarly trivial: call
> os.path.abspath when calculating __file__ (just as runpy now does and
> the import emulation in pkgutil always has).

I thought __file__ was required to be absolute in Python 3.


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