Ich installierte pip mit get-pip.pydanach pip freezeunter Fehler auslöst Exception: Traceback (most recent call last): File "/usr/lib/python2.7/dist-packages/pip/basecommand.py", line 122, in main status = self.run(options, args) File "/usr/lib/python2.7/dist-packages/pip/commands/freeze.py", line...