为什么我在使用环境变量returns时报错?
For what reason when I use environment variables returns error?
我希望两种情况都返回相同的消息,但只有第一种是正确的
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.path.isdir('/home/macabeus/ApenasMeu')
True
>>> os.path.isdir('~/ApenasMeu')
False
为什么第二个不处理~
?如何解决这个问题?
引用os.path
module documentation:
Unlike a unix shell, Python does not do any automatic path expansions. Functions such as expanduser()
and expandvars()
can be invoked explicitly when an application desires shell-like path expansion. (See also the glob
module.)
因此您可以使用这些函数来执行该扩展:
>>> os.path.expanduser('~/ApenasMeu')
'/home/macabeus/ApenasMeu'
>>> os.path.isdir(os.path.expanduser('~/ApenasMeu'))
True
我希望两种情况都返回相同的消息,但只有第一种是正确的
Python 2.7.6 (default, Jun 22 2015, 17:58:13)
[GCC 4.8.2] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.path.isdir('/home/macabeus/ApenasMeu')
True
>>> os.path.isdir('~/ApenasMeu')
False
为什么第二个不处理~
?如何解决这个问题?
引用os.path
module documentation:
Unlike a unix shell, Python does not do any automatic path expansions. Functions such as
expanduser()
andexpandvars()
can be invoked explicitly when an application desires shell-like path expansion. (See also theglob
module.)
因此您可以使用这些函数来执行该扩展:
>>> os.path.expanduser('~/ApenasMeu')
'/home/macabeus/ApenasMeu'
>>> os.path.isdir(os.path.expanduser('~/ApenasMeu'))
True