在我的/etc/profile文件中,我将PYTHONPATH设置为某个值。
但是当我执行"source myvirtual-env"命令后,
然后在python中执行以下操作:
但是当我执行"source myvirtual-env"命令后,
然后在python中执行以下操作:
>>> import sys
>>> print sys.path
我找不到我的路径。
>>> import sys
>>> print sys.path
我找不到我的路径。
我在Windows XP上使用Python 2.7和virtualenv 1.7.1.2,并未观察到问题,我怀疑Paul McMillan的答案是错误的。
# PYTHONPATH not set
# output from python -c "import sys; print sys.path" (edited for clarity)
'',
'C:\\Program Files\\python\\2.7\\lib\\site-packages\\pip-1.1-py2.7.egg',
'C:\\WINDOWS\\system32\\python27.zip',
'C:\\Program Files\\python\\2.7\\DLLs',
'C:\\Program Files\\python\\2.7\\lib',
'C:\\Program Files\\python\\2.7\\lib\\plat-win',
'C:\\Program Files\\python\\2.7\\lib\\lib-tk',
'C:\\Program Files\\python\\2.7',
'C:\\Program Files\\python\\2.7\\lib\\site-packages',
'C:\\Program Files\\python\\2.7\\lib\\site-packages\\setuptools-0.6c11-py2.7.egg-info'
# PYTHONPATH not set, virtualenv activated
# output from python -c "import sys; print sys.path" (edited for clarity)
'',
'c:\\python\\virtualenv\\2.7\\lib\\site-packages\\distribute-0.6.24-py2.7.egg',
'c:\\python\\virtualenv\\2.7\\lib\\site-packages\\pip-1.1-py2.7.egg',
'C:\\WINDOWS\\system32\\python27.zip',
'c:\\python\\virtualenv\\2.7\\DLLs',
'c:\\python\\virtualenv\\2.7\\lib',
'c:\\python\\virtualenv\\2.7\\lib\\plat-win',
'c:\\python\\virtualenv\\2.7\\lib\\lib-tk',
'c:\\python\\virtualenv\\2.7\\Scripts',
'C:\\Program Files\\python\\2.7\\Lib',
'C:\\Program Files\\python\\2.7\\DLLs',
'C:\\Program Files\\python\\2.7\\Lib\\lib-tk',
'c:\\python\\virtualenv\\2.7',
'c:\\python\\virtualenv\\2.7\\lib\\site-packages'
# PYTHONPATH set to c:\pythonpath_sample_dir
# output from python -c "import sys; print sys.path" (edited for clarity)
''
'C:\\Program Files\\python\\2.7\\lib\\site-packages\\pip-1.1-py2.7.egg'
'c:\\pythonpath_sample_dir' <--- value from PYTHONPATH
'C:\\WINDOWS\\system32\\python27.zip'
'C:\\Program Files\\python\\2.7\\DLLs'
'C:\\Program Files\\python\\2.7\\lib'
'C:\\Program Files\\python\\2.7\\lib\\plat-win'
'C:\\Program Files\\python\\2.7\\lib\\lib-tk'
'C:\\Program Files\\python\\2.7'
'C:\\Program Files\\python\\2.7\\lib\\site-packages'
'C:\\Program Files\\python\\2.7\\lib\\site-packages\\setuptools-0.6c11-py2.7.egg-info'
# PYTHONPATH set to c:\pythonpath_sample_dir, virtualenv activated
# output from python -c "import sys; print sys.path" (edited for clarity)
''
'c:\\python\\virtualenv\\2.7\\lib\\site-packages\\distribute-0.6.24-py2.7.egg'
'c:\\python\\virtualenv\\2.7\\lib\\site-packages\\pip-1.1-py2.7.egg'
'c:\\pythonpath_sample_dir' <--- value from PYTHONPATH
'C:\\WINDOWS\\system32\\python27.zip'
'c:\\python\\virtualenv\\2.7\\DLLs'
'c:\\python\\virtualenv\\2.7\\lib'
'c:\\python\\virtualenv\\2.7\\lib\\plat-win'
'c:\\python\\virtualenv\\2.7\\lib\\lib-tk'
'c:\\python\\virtualenv\\2.7\\Scripts'
'C:\\Program Files\\python\\2.7\\Lib'
'C:\\Program Files\\python\\2.7\\DLLs'
'C:\\Program Files\\python\\2.7\\Lib\\lib-tk'
'c:\\python\\virtualenv\\2.7'
'c:\\python\\virtualenv\\2.7\\lib\\site-packages'
此外,Python虚拟环境:为什么我在干净/新的虚拟环境中仍然可以导入旧模块似乎证实了PYTHONPATH
在激活虚拟环境时也被用来构建sys.path
。