pip install codepage error (sqlalchemy,windows)

[Goblenus]

I have changed code page in my cmd to 65001 (it's utf-8), and while installing sqlalchemy by pip:

c:\Program Files\Python35\Scripts>pip3.exe install sqlalchemy

I obtained next error:

Collecting sqlalchemy
  Using cached SQLAlchemy-1.1.3.tar.gz
Installing collected packages: sqlalchemy
  Running setup.py install for sqlalchemy ... error
Exception:
Traceback (most recent call last):
  File "c:\program files\python35\lib\site-packages\pip\compat\__init__.py", line 73, in console_to_str
    return s.decode(sys.__stdout__.encoding)
  File "c:\program files\python35\lib\encodings\cp65001.py", line 17, in decode
    return codecs.code_page_decode(65001, input, errors, True)
UnicodeDecodeError: 'CP_UTF8' codec can't decode bytes in position 0--1: No mapping for the Unicode character exists in the target code page.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "c:\program files\python35\lib\site-packages\pip\basecommand.py", line 215, in main
    status = self.run(options, args)
  File "c:\program files\python35\lib\site-packages\pip\commands\install.py", line 342, in run
    prefix=options.prefix_path,
  File "c:\program files\python35\lib\site-packages\pip\req\req_set.py", line 784, in install
    **kwargs
  File "c:\program files\python35\lib\site-packages\pip\req\req_install.py", line 878, in install
    spinner=spinner,
  File "c:\program files\python35\lib\site-packages\pip\utils\__init__.py", line 676, in call_subprocess
    line = console_to_str(proc.stdout.readline())
  File "c:\program files\python35\lib\site-packages\pip\compat\__init__.py", line 75, in console_to_str
    return s.decode('utf_8')
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xed in position 34: invalid continuation byte

To solve this, change you code page to 866

chcp 866

And try to install sqlalchemy once again.

Issue on sqlalchemy: https://bitbucket.org/zzzeek/sqlalchemy/issues/3851/pip-install-error-windows-10

[sakurai-youhei]

+1 for fix; I've seen many (now pysandbox) recently because of code page 932 on my Windows...

C:\Users\sakurai>python --version
Python 3.6.0

C:\Users\sakurai>python -m pip --version
pip 9.0.1 from C:\Python36\lib\site-packages (python 3.6)

[xavfernandez]

Related to #4251

[AraHaan]

I seen this issue also happen with packages that have cython extension modules (aiohttp, yarl) in packages on 3.6 when they did not have wheels for 3.6 on PyPi. Note this bug does not appear when pip installing bdist_wheel's even if there are no c/cython extension modules.