Python问题分享：IndentationError: unexpected indent

背景：安装Paramiko过程中遇到IndentationError: unexpected indent
错误信息如下：
Traceback (most recent call last):
  File "C:\Python27\lib\runpy.py", line 162, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "C:\Python27\lib\runpy.py", line 72, in _run_code
    exec code in run_globals
  File "C:\Python27\Scripts\pip.exe\__main__.py", line 5, in <module>
  File "C:\Python27\lib\site-packages\pip\__init__.py", line 15, in <module>
    from pip.vcs import git, mercurial, subversion, bazaar  # noqa
  File "C:\Python27\lib\site-packages\pip\vcs\mercurial.py", line 10, in <module>
    from pip.download import path_to_url
  File "C:\Python27\lib\site-packages\pip\download.py", line 34, in <module>
    from pip.utils.logging import indent_log
  File "C:\Python27\lib\site-packages\pip\utils\logging.py", line 9
    import threading
    ^
过程回顾：
   1. 查看最后一个错误点logging.py文件
   2. 行数为9的代码中如下所示
   
   
  注：可以看出上述第8行try那里多了个py，删掉即可