Getting Error after migrating from python 3.4.1 to python 3.6.6 ( Failed to import the site module )

[sandeep.bayi6 at gmail.com]

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Error code:
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Traceback (most recent call last):
  File "C:\Users\sandeep\AppData\Local\Programs\Python\Python36-32\Lib\site.py", line 73, in <module
    import os
  File "C:\Users\sandeep\AppData\Local\Programs\Python\Python36-32\Lib\os.py", line 652, in <module>
    from _collections_abc import MutableMapping
  File "C:\Users\sandeep\AppData\Local\Programs\Python\Python36-32\Lib\_collections_abc.py", line 58
    async def _coro(): pass
            ^
SyntaxError: invalid syntax
Failed to import the site module

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After migrating from python 3.4.1 to python 3.6.1
while Executing my project, I'm facing this issue and not able to resolve it