我有使用Python 2.5和Python 2.7的GAE项目。所以,我应该能够使用这两个版本。我已将2个版本安装到不同的文件夹(d:\Work\Python25\
和d:\Work\Python27\
)中。在它们之间切换的最简单方法是什么?
我试过用:
start d:\Work\Python27\python.exe d:\Work\GAE\dev_appserver.py %~dp0
但如果失败,则出现以下异常:
Traceback (most recent call last):
File "d:\Work\GAE\dev_appserver.py", line 171, in <module>
run_file(__file__, globals())
File "d:\Work\GAE\dev_appserver.py", line 167, in run_file
execfile(script_path, globals_)
File "d:\Work\GAE\google\appengine\tools\dev_appserver_main.py", line 165, in
<module>
from google.appengine.tools import dev_appserver
File "d:\Work\GAE\google\appengine\tools\dev_appserver.py", line 197, in <modu
le>
mimetypes.add_type(mime_type, '.' + ext)
File "d:\Work\Python27\lib\mimetypes.py", line 344, in add_type
init()
File "d:\Work\Python27\lib\mimetypes.py", line 355, in init
db.read_windows_registry()
File "d:\Work\Python27\lib\mimetypes.py", line 259, in read_windows_registry
for ctype in enum_types(mimedb):
File "d:\Work\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 0xe0 in position 0: ordinal
not in range(128)
答案 0 :(得分:1)
我从来没有在Windows PC上试过这个,但在Linux上这种情况下,virtualenv是你的朋友。
答案 1 :(得分:0)
我所描述的问题与两个版本的使用无关,但python 2.7问题 - https://stackoverflow.com/a/4238212/604388。修复之后,我可以使用问题中描述的python 2.7。