title: Python 'FATAL ERROR' on Windows
body: <p>I installed Python 3.5 previously in my PC. But somehow, maybe a Windows 10 update messed up my Python installation. Can you solve this?</p>
  
  <p>Here's my python info:</p>
  
  <pre><code>C:\WINDOWS\system32&gt;python --version
  Python 3.5.4
  
  C:\WINDOWS\system32&gt;python
  Fatal Python error: Py_Initialize: unable to load the file system codec
    File "C:\Python27\Lib\encodings\__init__.py", line 123
      raise CodecRegistryError,\
                              ^
  SyntaxError: invalid syntax
  
  Current thread 0x00002c30 (most recent call first):
  
  C:\WINDOWS\system32&gt;set | findstr /i python
  
  Path=C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Users\rodrigo\AppData\Local\Programs\Python\Python35\Scripts\;C:\Users\rodrigo\AppData\Local\Programs\Python\Python35\;C:\Users\rodrigo\AppData\Local\Microsoft\WindowsApps;C:\Program Files\snap\bin
  PYTHONPATH=C:\Python27\Lib;C:\Python27;C:\Program Files\Anaconda2\Lib\site-packages\pythonwin\pywin;C:\Program Files\Anaconda2\Lib\site-packages\pywin32_system32
  </code></pre>