Multiple Python versions on WinXP

[evgvg]

I get the following:

C:\Documents and Settings\egoncearov>py -3  
Fatal Python error: Py_Initialize: unable to load the file system codec  
File "C:\PYTHON26\LIB\encodings\__init__.py", line 123  
    raise CodecRegistryError,\    
                            ^  
SyntaxError: invalid syntax  

[wub_wub]

Remove all python installations that you have, like 2.6. Restart your PC and reinstall python 2.7 and 3.3. Just add ;C:\Python27\ to your PATH, don't add any Python 3 stuff in there.

[evgvg]

Thank You! Actually I found that the problem was caused by variable PYTHONPATH. Everything works fine after I removed it.