"from plumbum.cmd import" does not work on python 3.3

[blin]

When trying to import any command in python 3.3 following exception occurs

>>> from plumbum.cmd import wc
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<frozen importlib._bootstrap>", line 1597, in _handle_fromlist
  File "/usr/lib/python3.3/site-packages/plumbum/local_machine.py", line 537, in __getitem__
    return LocalCommand(self.which(cmd))
  File "/usr/lib/python3.3/site-packages/plumbum/local_machine.py", line 508, in which
    raise CommandNotFound(progname, list(cls.env.path))
plumbum.commands.CommandNotFound: ('__path__', [<LocalPath /usr/local/bin>, <LocalPath /usr/bin>, <LocalPath /bin>, <LocalPath /usr/local/sbin>, <LocalPath /usr/sbin>, <LocalPath /sbin>, <LocalPath ~/bin>, <LocalPath /usr/bin/vendor_perl>, <LocalPath /usr/bin/core_perl>, <LocalPath /usr/lib/qt4/bin>, <LocalPath /home/blin/bin>, <LocalPath /home/blin/bin>])

This seems to be due to http://docs.python.org/3/whatsnew/3.3.html#importlib

What happens is that

__import__('plumbum.cmd', fromlist=('wc')

eventually calls

hasattr(plumbum.cmd, '__path__')

which calls

plumbum.local_machine.local.__getitem__('__path__').

which fails.

Proposed solution is to replace

__getattr__ = local.__getitem__

in cmd with

def __getattr__(self, name):
    if name != '__path__':
        return local.__getitem__(name)
    else:
        pass

[tomerfiliba]

did you test it on the master branch or on the 1.1 release? i have a faint memory of fixing this already, but of course i might be wrong. anyhow, thanks for reporting!

[tomerfiliba]

here: https://github.com/tomerfiliba/plumbum/blob/master/plumbum/__init__.py#L59

does it not solve the issue?

[blin]

I've tested it on 1.1 relesase.

This indeed solves the issue. It is a small change, but maybe you can release it as 1.1.1?

I guess i'll contact arch linux package maintainer for plumbum and ask him to include a patch until official release.

Thank you for a grate project!