TypeError upon executing any verb

[gavanderhoorn]

Receiving a TypeError upon executing any very or plain bugzoo (v 2.1.24):

bugzoo build --help
Traceback (most recent call last):
  File "/home/user/bugzoo_venv/bin/bugzoo", line 6, in <module>
    from bugzoo.cli.app import main
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/__init__.py", line 2, in <module>
    from bugzoo.client import Client
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/client/__init__.py", line 4, in <module>
    from .bug import BugManager
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/client/bug.py", line 5, in <module>
    from ..core.bug import Bug
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/core/__init__.py", line 1, in <module>
    from .bug import Bug
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/core/bug.py", line 12, in <module>
    from .coverage import CoverageInstructions
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/core/coverage.py", line 29, in <module>
    class CoverageInstructions(object):
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/bugzoo/core/coverage.py", line 42, in CoverageInstructions
    ) -> Optional[Type['CoverageInstructions']]:
  File "/usr/lib/python3.5/typing.py", line 649, in __getitem__
    return Union[arg, type(None)]
  File "/usr/lib/python3.5/typing.py", line 552, in __getitem__
    dict(self.__dict__), parameters, _root=True)
  File "/usr/lib/python3.5/typing.py", line 512, in __new__
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/usr/lib/python3.5/typing.py", line 512, in <genexpr>
    for t2 in all_params - {t1} if not isinstance(t2, TypeVar)):
  File "/usr/lib/python3.5/typing.py", line 1077, in __subclasscheck__
    if super().__subclasscheck__(cls):
  File "/home/user/bugzoo_venv/lib/python3.5/abc.py", line 225, in __subclasscheck__
    for scls in cls.__subclasses__():
TypeError: descriptor '__subclasses__' of 'type' object needs an argument

Installed on an Ubuntu Xenial (16.04, amd64) machine "with the latest updates" using the following commands:

sudo apt install python3-dev
virtualenv --python=python3 $HOME/bugzoo_venv
source $HOME/bugzoo_venv/bin/activate
pip3 install bugzoo

[gavanderhoorn]

Tried v2.1.16, just to see if this is something with the latest release only. But then I get:

Traceback (most recent call last):
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/urllib3/connectionpool.py", line 600, in urlopen
    chunked=chunked)
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/urllib3/connectionpool.py", line 354, in _make_request
    conn.request(method, url, **httplib_request_kw)
  File "/usr/lib/python3.5/http/client.py", line 1106, in request
    self._send_request(method, url, body, headers)
  File "/usr/lib/python3.5/http/client.py", line 1151, in _send_request
    self.endheaders(body)
  File "/usr/lib/python3.5/http/client.py", line 1102, in endheaders
    self._send_output(message_body)
  File "/usr/lib/python3.5/http/client.py", line 934, in _send_output
    self.send(msg)
  File "/usr/lib/python3.5/http/client.py", line 877, in send
    self.connect()
  File "/home/user/bugzoo_venv/lib/python3.5/site-packages/docker/transport/unixconn.py", line 42, in connect
    sock.connect(self.unix_socket)
PermissionError: [Errno 13] Permission denied

and a bunch more of those. Not sure what is going on.

On this machine my user is not a member of the docker group. Could that be related somehow?

---

Edit: related? #274.

[gavanderhoorn]

2.1.19: Permission denied
2.1.20: TypeError

[ChrisTimperley]

Do you mind sharing your $ pip list with me?

[gavanderhoorn]

With the venv active, or not?

[gavanderhoorn]

With venv active:

Package          Version   
---------------- ----------
attrs            18.2.0    
bugzoo           2.1.24    
cement           3.0.2     
certifi          2018.11.29
chardet          3.0.4     
Click            7.0       
docker           3.7.0     
docker-pycreds   0.4.0     
dockerpty        0.4.1     
Flask            1.0.2     
gitdb2           2.0.5     
GitPython        2.1.11    
idna             2.8       
itsdangerous     1.1.0     
Jinja2           2.10      
MarkupSafe       1.1.0     
mypy-extensions  0.4.1     
pip              19.0.1    
pkg-resources    0.0.0     
psutil           5.5.0     
PyYAML           3.13      
requests         2.21.0    
setuptools       40.8.0    
six              1.12.0    
smmap2           2.0.5     
tabulate         0.8.3     
urllib3          1.24.1    
websocket-client 0.54.0    
Werkzeug         0.14.1    
wheel            0.32.3    

[gavanderhoorn]

Just tried a different system (also Ubuntu Xenial (16.04, amd64) with the same procedure, and 2.1.24 also throws a TypeError.

[gavanderhoorn]

Ok, just found Optional[Type[Foo]] raises TypeError in Python 3.5.2 on SO:

This is a bug in Python 3.5.2.

and sure enough:

$ python3 --version
Python 3.5.2

[gavanderhoorn]

Installed Python 3.6 (from this ppa; couldn't quickly find any more sanctioned way to upgrade the 3.5.x Xenial comes with) the normal installation steps result in a venv with a working BugZoo.

Or at least: I now get a (probably expected) Permission denied error ($USER is not a member of docker group).

@ChrisTimperley: are you on Xenial on not using Ubuntu at all?

[gavanderhoorn]

Seeing as this is a bug in Python and not BugZoo, I'll close this.

@ChrisTimperley: might be something to mention in the documentation / readme?