Hi maintainer,
I am able to reproduce this reliably.
On a clean jessie or sid system (does not happen on wheezy):
root# apt-get install python3 python3-pip
root# pip3 install --upgrade requests
After this, every invocation of pip3 fails:
root# pip3
Traceback (most recent call last):
File "/usr/bin/pip3", line 9, in <module>
load_entry_point('pip==1.5.6', 'console_scripts', 'pip3')()
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 356, in
load_entry_point
return get_distribution(dist).load_entry_point(group, name)
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2476, in
load_entry_point
return ep.load()
File "/usr/lib/python3/dist-packages/pkg_resources.py", line 2190, in load
['__name__'])
File "/usr/lib/python3/dist-packages/pip/__init__.py", line 61, in
<module>
from pip.vcs import git, mercurial, subversion, bazaar # noqa
File "/usr/lib/python3/dist-packages/pip/vcs/mercurial.py", line 9, in
<module>
from pip.download import path_to_url
File "/usr/lib/python3/dist-packages/pip/download.py", line 25, in
<module>
from requests.compat import IncompleteRead
ImportError: cannot import name 'IncompleteRead'
The version of requests which the upgrade installs is currently 2.5.1.
This renders pip unusable for many cases, and can break not just pip but
also other Python packages. In particular, any Python package that
depends on requests which you upgrade using system pip will permanently
break pip.
Thanks for looking into this -- I'm more than happy to help with testing
any fixes!
Happy Friday,
Chris
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