Python UnicodeDecodeError : 'ascii' 编解码器无法解码位置 0 中的字节 0xe0：序号不在范围内 (128)
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UnicodeDecodeError : 'ascii' codec can't decode byte 0xe0 in position 0: ordinal not in range(128)
提问by demas
On one of my machines I have the error when I am working with google apps engine or django.
在我的一台机器上，当我使用谷歌应用程序引擎或 django 时出现错误。
For example:
例如：
app.yaml
application: demas1252c version: 1 runtime: python api_version: 1 handlers: - url: /images static_dir: images - url: /css static_dir: css - url: /js static_dir: js - url: /.* script: demas1252c.pydemas1252c.py
import cgi import wsgiref.handlers from google.appengine.ext.webapp import template from google.appengine.ext import webapp class MainPage(webapp.RequestHandler): def get(self): values = {'id' : 10} self.response.out.write(template.render('foto.html', values)) application = webapp.WSGIApplication([('/', MainPage)], debug = True) wsgiref.handlers.CGIHandler().run(application)foto.html
<!DOCTYPE html> <html lang="en"> <head></head> <body>some</body> </html>
应用程序.yaml
application: demas1252c version: 1 runtime: python api_version: 1 handlers: - url: /images static_dir: images - url: /css static_dir: css - url: /js static_dir: js - url: /.* script: demas1252c.pydemas1252c.py
import cgi import wsgiref.handlers from google.appengine.ext.webapp import template from google.appengine.ext import webapp class MainPage(webapp.RequestHandler): def get(self): values = {'id' : 10} self.response.out.write(template.render('foto.html', values)) application = webapp.WSGIApplication([('/', MainPage)], debug = True) wsgiref.handlers.CGIHandler().run(application)foto.html
<!DOCTYPE html> <html lang="en"> <head></head> <body>some</body> </html>
error message:
错误信息：
C:\artefacts\dev\project>"c:\Program Files\Google\google_appengine\dev_appserver.py" foto-hosting
Traceback (most recent call last):
File "c:\Program Files\Google\google_appengine\dev_appserver.py", line 69, in <module>
run_file(__file__, globals())
File "c:\Program Files\Google\google_appengine\dev_appserver.py", line 65, in run_file
execfile(script_path, globals_)
File "c:\Program Files\Google\google_appengine\google\appengine\tools\dev_appserver_main.py", line 92, in <module>
from google.appengine.tools import dev_appserver
File "c:\Program Files\Google\google_appengine\google\appengine\tools\dev_appserver.py", line 140, in <module>
mimetypes.add_type(mime_type, '.' + ext)
File "C:\Python27\lib\mimetypes.py", line 344, in add_type
init()
File "C:\Python27\lib\mimetypes.py", line 355, in init
db.read_windows_registry()
File "C:\Python27\lib\mimetypes.py", line 260, in read_windows_registry
for ctype in enum_types(mimedb):
File "C:\Python27\lib\mimetypes.py", line 250, in enum_types
ctype = ctype.encode(default_encoding) # omit in 3.x!
UnicodeDecodeError: 'ascii' codec can't decode byte 0xe0 in position 0: ordinal not in range(128)
When I am working with static files in django (without gae) I have very similar error (with different stack).
当我在 django（没有 gae）中处理静态文件时，我有非常相似的错误（具有不同的堆栈）。
I tried to find the reason of error and added code to mimetypes.py:
我试图找到错误的原因，并在 mimetypes.py 中添加了代码：
print '====='
print ctype
ctype = ctype.encode(default_encoding) # omit in 3.x!
Then I get next messages in my console:
然后我在控制台中收到下一条消息：
=====
video/x-ms-wvx
=====
video/x-msvideo
=====
р?фшю/AMR
Traceback (most recent call last):
In the registry HKCR/Mime/Database/ContentType/ I have five keys with russian (cyrilic) letters. But how can I fix this error?
在注册表 HKCR/Mime/Database/ContentType/ 我有五个带有俄文（西里尔文）字母的键。但是我该如何解决这个错误呢？
采纳答案by bobince
This is a bug in mimetypes, triggered by bad data in the registry. (р?фшю/AMRis not at all a valid MIME media type.)
这是 中的一个错误mimetypes，由注册表中的错误数据触发。（р?фшю/AMR根本不是有效的 MIME 媒体类型。）
ctypeis a registry key name returned by _winreg.EnumKey, which mimetypesis expecting to be a Unicode string, but it isn't. Unlike _winreg.QueryValueEx, EnumKeyreturns a byte string (direct from the ANSI version of the Windows API; _winregin Python 2 doesn't use the Unicode interfaces even though it returns Unicode strings, so it'll never read non-ANSI characters correctly).
ctype是由 返回的注册表项名称_winreg.EnumKey，它mimetypes期望是一个 Unicode 字符串，但它不是。与_winreg.QueryValueEx,不同，EnumKey返回一个字节字符串（直接来自 Windows API 的 ANSI 版本；_winreg在 Python 2 中，即使它返回 Unicode 字符串也不使用 Unicode 接口，因此它永远不会正确读取非 ANSI 字符）。
So the attempt to .encodeit fails with a Unicode?Decode?Error trying to get a Unicode string before encoding it back to ASCII!
那么尝试.encode使用 Unicode 失败了？解码？在将其编码回 ASCII 之前尝试获取 Unicode 字符串时出错！
try:
ctype = ctype.encode(default_encoding) # omit in 3.x!
except UnicodeEncodeError:
pass
These lines in mimetypesshould simply be removed.
这些行mimetypes应该简单地删除。
ETA: added to bug tracker.
ETA：添加到错误跟踪器。
回答by Codeboy.ru
its a python bug with latin MIME tipes in registry start regedit and inspect "HKEY_CLASSES_ROOT\MIME\Database\Content Type" for non-latin names.
它是在注册表中带有拉丁文 MIME 提示的 python 错误，启动 regedit 并检查“HKEY_CLASSES_ROOT\MIME\Database\Content Type”以获取非拉丁文名称。
回答by newtover
By the way, the main culpit of the problem is QuickTime which adds non-ascii mime types to the windows registry. The easiest way to fix it is to manually find and remove from the registry the subsections of the HKCR/Mime/Database/ContentType/starting with аудио/and видео/.
顺便说一下，问题的罪魁祸首是 QuickTime，它向 Windows 注册表添加了非 ascii mime 类型。修复它的最简单方法是手动查找并从注册表中删除HKCR/Mime/Database/ContentType/以аудио/和开头的小节видео/。
回答by Wangsu
There is a patch:
有一个补丁：
http://bugs.python.org/file18143/9291.patch
http://bugs.python.org/file18143/9291.patch
Works great for me.
对我很有用。
Just replace UnicodeEncodeError to be UnicodeError
只需将 UnicodeEncodeError 替换为 UnicodeError
回答by HaveF
An alternative solution from python issue9291 by Alexandr Zarubkin (me21):
来自Alexandr Zarubkin (me21) 的 python issue9291的替代解决方案：
add file named sitecustomize.py in Lib\site-packages folder.
在 Lib\site-packages 文件夹中添加名为 sitecustomize.py 的文件。
import sys
sys.setdefaultencoding("cp1251")
