UnicodeDecodeError when environment is not utf-8

[gumblex]

• Wheel is installed
• Environment is not UTF-8 (Windows)
• setup.py is UTF-8 and contains Chinese characters
• The installation is successful eventually
• Latest Python 3.5 and pip

C:\Users\Gumble>pip install jieba
Collecting jieba
Using cached jieba-0.37.zip
Building wheels for collected packages: jieba
Running setup.py bdist_wheel for jieba
Complete output from command c:\users\gumble\appdata\local\programs\python\python35\python.exe -c "import setuptools;file='C:\Users\Gumble\AppData\Local\Temp\pip-build-4qaqeq2v\jieba\setup.py';exec(compile(open(file).read().replace('\r\n', '\n'), file, 'exec'))" bdist_wheel -d C:\Users\Gumble\AppData\Local\Temp\tmph6smjszqpip-wheel-:
Traceback (most recent call last):
File "", line 1, in
UnicodeDecodeError: 'cp950' codec can't decode byte 0xe2 in position 90: illegal multibyte sequence

---

Failed building wheel for jieba
Failed to build jieba
Installing collected packages: jieba
Running setup.py install for jieba
Successfully installed jieba-0.37

Original issue: fxsjy/jieba#319

[xavfernandez]

Seems related to #2042

[gumblex]

It seems the same and duplicated problem.