Error during install attempt via pip
Distro: Ubuntu 16.04 Python: 3.5.2 (Also tried 2.7.12, same error) Pip: 8.1.2
Pip installation fails with the following error:
~$ sudo -H pip3 install umobj
Collecting umobj
Using cached umobj-1.3.5.tar.gz
Collecting boto (from umobj)
Using cached boto-2.42.0-py2.py3-none-any.whl
Collecting filechunkio (from umobj)
Using cached filechunkio-1.8.tar.gz
Collecting progressbar (from umobj)
Using cached progressbar-2.3.tar.gz
Complete output from command python setup.py egg_info:
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "/tmp/pip-build-de2o42vu/progressbar/setup.py", line 5, in <module>
import progressbar
File "/tmp/pip-build-de2o42vu/progressbar/progressbar/__init__.py", line 59, in <module>
from progressbar.widgets import *
File "/tmp/pip-build-de2o42vu/progressbar/progressbar/widgets.py", line 121, in <module>
class FileTransferSpeed(Widget):
File "/usr/lib/python3.5/abc.py", line 133, in __new__
cls = super().__new__(mcls, name, bases, namespace)
ValueError: 'format' in __slots__ conflicts with class variable
----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in /tmp/pip-build-de2o42vu/progressbar