UnicodeDecodeError when install in Windows 7

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Originally reported by: tkdchen (Bitbucket: tkdchen, GitHub: tkdchen)

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Install version 2.0.1 in Windows 7, Python 2.7.6 64bit. This error happened again when installing by running ez_setup.py downloaded from this repo.

#!python

Extracting in c:\users\chen\appdata\local\temp\tmprpne9d
Now working in c:\users\chen\appdata\local\temp\tmprpne9d\setuptools-2.0.1
Installing Setuptools
Traceback (most recent call last):
  File "setup.py", line 17, in <module>
    exec(init_file.read(), command_ns)
  File "<string>", line 8, in <module>
  File "c:\users\chen\appdata\local\temp\tmprpne9d\setuptools-2.0.1\setuptools\__init__.py", line 11, in <module>
    from setuptools.extension import Extension
  File "c:\users\chen\appdata\local\temp\tmprpne9d\setuptools-2.0.1\setuptools\extension.py", line 5, in <module>
    from setuptools.dist import _get_unpatched
  File "c:\users\chen\appdata\local\temp\tmprpne9d\setuptools-2.0.1\setuptools\dist.py", line 15, in <module>
    from setuptools.compat import numeric_types, basestring
  File "c:\users\chen\appdata\local\temp\tmprpne9d\setuptools-2.0.1\setuptools\compat.py", line 19, in <module>
    from SimpleHTTPServer import SimpleHTTPRequestHandler
  File "c:\Python27\lib\SimpleHTTPServer.py", line 27, in <module>
    class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
  File "c:\Python27\lib\SimpleHTTPServer.py", line 208, in SimpleHTTPRequestHandler
    mimetypes.init() # try to read system mime.types
  File "c:\Python27\lib\mimetypes.py", line 358, in init
    db.read_windows_registry()
  File "c:\Python27\lib\mimetypes.py", line 258, in read_windows_registry
    for subkeyname in enum_types(hkcr):
  File "c:\Python27\lib\mimetypes.py", line 249, in enum_types
    ctype = ctype.encode(default_encoding) # omit in 3.x!
UnicodeDecodeError: 'ascii' codec can't decode byte 0xb0 in position 1: ordinal not in range(128)
Something went wrong during the installation.
See the error message above.

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• Bitbucket: https://bitbucket.org/pypa/setuptools/issue/127

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Based on the traceback, it looks like there's an error in your environment that's preventing mimetypes from initializing. I suspect if you do this:

python -c "import mimetypes; mimetypes.init()"

you will get the same traceback. Indeed, this bug has been reported upstream.

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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This bug applies to Python, not setuptools.

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Original comment by tkdchen (Bitbucket: tkdchen, GitHub: tkdchen):

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Thanks for that information. :)

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Original comment by hugleecool (Bitbucket: hugleecool, GitHub: hugleecool):

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HELLO! I come here by Google. I notice that the asker is a Chinese, the same to me. So, maybe we face the same problem. Then I register this website.
Oh, sorry for my bad English!

I HAVE FIND THE RIGHT ANSWER!

It is because when Python install some packages, it will check the Windows Registry, some Chinese software like Aliwangwang import 'gbk' value to the HKEY_CLASSES_ROOT. So Python doesn't work.

It can be solved like this:

open C:\Python27\Lib\ mimetypes.py with Notepad ++ or other editor, then search the line " default_encoding = sys.getdefaultencoding()". add codes to the line above like this:

if sys.getdefaultencoding() != 'gbk':
reload(sys)
sys.setdefaultencoding('gbk')
default_encoding = sys.getdefaultencoding()

简单来说，就是有些国内软件修改注册表导致python无法安装库，要改下lib目录下的代码。

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Issue #146 was marked as a duplicate of this issue.

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Issue #147 was marked as a duplicate of this issue.

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Original comment by captals (Bitbucket: captals, GitHub: captals):

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Thanks to hugleecool!I resolve the problem.

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Original comment by atuxp (Bitbucket: atuxp, GitHub: atuxp):

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多谢hugleecool，帮了大忙

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Original comment by marco_chan (Bitbucket: marco_chan, GitHub: Unknown):

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I got error when adding the line :
if sys.getdefaultencoding() != 'gbk': reload(sys) sys.setdefaultencoding('gbk')
to mimetypes.py

Traceback (most recent call last):
File "", line 1, in
File "C:\Python27\lib\mimetypes.py", line 256
reload(sys) sys.setdefaultencoding('gbk')
^
SyntaxError: invalid syntax

I am newbie, pls help

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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marco_chan: you need for the code to be proper Python syntax:

if sys.getdefaultencoding() != 'gbk':
  reload(sys)
  sys.setdefaultencoding('gbk')

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Original comment by marco_chan (Bitbucket: marco_chan, GitHub: Unknown):

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Thanks Jason! My PC is traditional Chinese, whre gbk is simplified Chinese.

To share with other people using traditional, the codes needed will be:

    if sys.getdefaultencoding() != 'big5':
        reload(sys)
        sys.setdefaultencoding('big5')

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Original comment by jaraco (Bitbucket: jaraco, GitHub: jaraco):

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Issue #166 was marked as a duplicate of this issue.

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Original comment by erickmendonca (Bitbucket: erickmendonca, GitHub: erickmendonca):

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I'm Brazilian and found the same issue on my system. The workaround fixed it for now. Thanks.

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Original comment by athruncole (Bitbucket: athruncole, GitHub: Unknown):

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Thanks to hugleecool ！！！！！ you so cool!!!!!