Python：操作系统环境exp后键错误

Question

为什么python在导出后不能获取evironment变量？ 怎么解决这个问题？在

λ: export AUTOTEST=/home/anton/eltx/scripts/gitlab/
~
λ: python
Python 2.7.12 (default, Dec  4 2017, 14:50:18) 
[GCC 5.4.0 20160609] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import os
>>> os.environ['AUTOTEST']
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/usr/lib/python2.7/UserDict.py", line 40, in __getitem__
    raise KeyError(key)
KeyError: 'AUTOTEST'
>>> 
>>> os.environ.get('AUTOTEST', 'none_value')
'none_value'
>>>

Answer 1

我发现了错误。有一个运行python的别名