New submission from adamhj:
my system is windows 2k3 sp2, python version is 2.7.6
i found this bug when trying to install the newest setuptools
X:\xxxez_setup.py
Extracting in d:\docume~1\xxx\locals~1\temp\tmpcyxs8s
Now working in d:\docume~1\xxx\locals~1\temp\tmpcyxs8s\setuptools-1.3.2
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
d:\docume~1\xxx\locals~1\temp\tmpcyxs8s\setuptools-1.3.2\setuptools\__init__.py,
line 11, in module
from setuptools.extension import Extension
File
d:\docume~1\xxx\locals~1\temp\tmpcyxs8s\setuptools-1.3.2\setuptools\extension.py,
line 5, in module
from setuptools.dist import _get_unpatched
File
d:\docume~1\xxx\locals~1\temp\tmpcyxs8s\setuptools-1.3.2\setuptools\dist.py,
line 15, in module
from setuptools.compat import numeric_types, basestring
File
d:\docume~1\xxx\locals~1\temp\tmpcyxs8s\setuptools-1.3.2\setuptools\compat.py,
line 19, in module
from SimpleHTTPServer import SimpleHTTPRequestHandler
File D:\Python27\lib\SimpleHTTPServer.py, line 27, in module
class SimpleHTTPRequestHandler(BaseHTTPServer.BaseHTTPRequestHandler):
File D:\Python27\lib\SimpleHTTPServer.py, line 208, in
SimpleHTTPRequestHandler
mimetypes.init() # try to read system mime.types
File D:\Python27\lib\mimetypes.py, line 358, in init
db.read_windows_registry()
File D:\Python27\lib\mimetypes.py, line 258, in read_windows_registry
for subkeyname in enum_types(hkcr):
File D:\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 0xc4 in position 33:
ordinal not in range(128)
Something went wrong during the installation.
See the error message above.
then i see into the code, the exception is raised in this function
def enum_types(mimedb):
i = 0
while True:
try:
ctype = _winreg.EnumKey(mimedb, i)
except EnvironmentError:
break
try:
ctype = ctype.encode(default_encoding) # omit in 3.x!
except UnicodeEncodeError:
pass
else:
yield ctype
i += 1
i checked my registry, there is an key in HKCR whose name is in
Chinese(encoding GBK), which causes this problem(btw, the default_encoding is
'ascii', assigned from sys.getdefaultencoding())
i don't know is it legal to use a non-ascii string as the name of a registry
key in windows, but i think there is some problem in these piece of code. why
the variable ctype need to be decoded here? i checked the _winreg.EnumKey()
function, it returns byte string:
_winreg.EnumKey(key,8911)
'\xbb\xad\xb0\xe5\xa1\xa3\xce\xc4\xb5\xb5'
#this is the problem key which cause the exception
so python tries to encode it(with ascii encoding) first, and then the exception
is raised(and unhandled)
shouldn't we just remove the try..encode..except paragraph?
--
components: Library (Lib)
messages: 202731
nosy: adamhj
priority: normal
severity: normal
status: open
title: mimetypes.init() raise unhandled excption in windows
type: behavior
versions: Python 2.7
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http://bugs.python.org/issue19567
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