python.exe was crashed when I run python **.py from windows cmd

if I type python in win cmd, it's ok.But when I run python main.py from cmd it crashed.

The message is:

python.exe has stopped working.

  Problem signature:
  Problem Event Name:   APPCRASH
  Application Name: python.exe
  Application Version:  0.0.0.0
  Application Timestamp:    4c73f7b6
  Fault Module Name:    python26.dll
  Fault Module Version: 2.6.6150.1013
  Fault开发者_C百科 Module Timestamp:   4c73f79a
  Exception Code:   c0000090
  Exception Offset: 000c30a2
  OS Version:   6.1.7600.2.0.0.256.48
  Locale ID:    2052
  Additional Information 1: 0a9e
  Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
  Additional Information 3: 0a9e
  Additional Information 4: 0a9e372d3b4ad19135b953a78882e789

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Post-mortem: the problem was solved inside question comments (re-installing Python fixed the problem; I suspect the Python installation had somehow gotten corrupted).