我有使用Python 2.5和Python 2.7的GAE項目。所以,我應該可以使用這兩個版本。我已經將2個版本安裝到不同的文件夾中(d:\Work\Python25\
和d:\Work\Python27\
)。在它們之間切換的最簡單方法是什麼?如何在一臺PC上同時使用Python 2.5和Python 2.7以及GAE?
我試着使用:
start d:\Work\Python27\python.exe d:\Work\GAE\dev_appserver.py %~dp0
,但如果失敗,出現以下異常:
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)