def is_venv(self, new_dir, old_dir):
""" useful as a post-hook for "cd" commands. it might be
a good idea to call this after the "jump" command or
after "pushd" as well, but that's not implemented.
"""
if self.announce_on_cd and is_venv(new_dir):
self.report('directory is a python virtualenv.')
self.report('use `venv_activate .` to activate it')
def test_is_venv(self):
self.assertTrue(venv.is_venv(self.venv1))
