-----> Python app detected
       Using supported version of Python 3.6 (python-3.6.6)
-----> Installing python-3.6.6
-----> Installing pip
-----> Installing SQLite3
-----> Installing requirements with pip
       Invalid requirement: 'import datetime'
       Traceback (most recent call last):
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/packaging/requirements.py", line 92, in __init__
           req = REQUIREMENT.parseString(requirement_string)
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1617, in parseString
           raise exc
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1607, in parseString
           loc, tokens = self._parse( instring, 0 )
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1379, in _parseNoCache
           loc,tokens = self.parseImpl( instring, preloc, doActions )
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 3376, in parseImpl
           loc, exprtokens = e._parse( instring, loc, doActions )
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 1383, in _parseNoCache
           loc,tokens = self.parseImpl( instring, preloc, doActions )
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/pyparsing.py", line 3164, in parseImpl
           raise ParseException(instring, loc, self.errmsg, self)
       pip._vendor.pyparsing.ParseException: Expected stringEnd (at char 7), (line:1, col:8)

       During handling of the above exception, another exception occurred:

       Traceback (most recent call last):
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/req/req_install.py", line 82, in __init__
           req = Requirement(req)
         File "/app/.heroku/python/lib/python3.6/site-packages/pip/_vendor/packaging/requirements.py", line 96, in __init__
           requirement_string[e.loc:e.loc + 8]))
       pip._vendor.packaging.requirements.InvalidRequirement: Invalid requirement, parse error at "'datetime'"

 !     Push rejected, failed to compile Python app.
 !     Push failed