Conemu: Python 2.7 pip install fails with "Illegal byte sequence"

[zevix]

ConEmu build: 180626 x64
OS version: Windows 10 x64
Used shell version: CMD

Python 2.7's pip fails when CMD runs under ConEmu:

C:\Users\User1>pip install Kivy --upgrade
Collecting Kivy
Downloading https://files.pythonhosted.org/packages/f7/98/d74b2c19eb28dcf36450c979c19676741891ca8
a54af0a7069e445552663/Kivy-1.10.1-cp27-cp27m-win_amd64.whl (4.3MB)
1% |Could not install packages due to an EnvironmentError: [Errno 42] Illegal byte sequence

This can be worked around by adding "--progress-bar off", but inconvenient, and problematic for novice users ...

[Maximus5]

Have you checked that without ConEmu? With the same codepage selected in the console?

[zevix]

Yes, and strangely enough, it happens without ConEmu as well. What's even strange that I'm sure I got this errors only since I installed ConEmu, and trying to reproduce it on a similar configuration (Same win10x64, same codepage - cp862) worked fine.
Any idea how can I find the source?

[Maximus5]

I don't believe that ConEmu may be a source of the problem, because it happens outside of ConEmu (as you said). I think you have either installed some Windows update or other third-party tools which causes the problem.

https://conemu.github.io/en/ThirdPartyProblems.html

Try to compare your environment variables, especially the PATH.
Also, the ProcessMonitor may be useful in your case.

[zevix]

Thanks!

[tmr232]

The bug in the pip repo - https://github.com/pypa/pip/issues/5665

[ophers]

for me changing the code page to ANSI worked. e.g.:
chcp 1255

[g3rzi]

For me:
pip install <package> --progress-bar off

[zevix]

Thanks g3rzi, I'm familiar with this workaround

I actually went for a more profound solution / workaround - I switched to Linux at last :)