Fatal Python error: Py_Initialize: unable to load the file system codec.

Fatal Python error: Py_Initialize: unable to load the file system codec. ImportError: No module named ‘encodings’
 
Problem description: when installing anaconda3 process nearing completion pop-up error Python interface, close not to finish after debugging, but at the end of the command line call Python times the above error, the solution is to find on your computer do you have any other versions of Python, if you have just uninstall deleted, or not to delete, but want to go to their corresponding environment path environment variable to delete, keep the latest installation.

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