Patch for issue #3051. Supports sympification of lambda
Fixed trailing whitespace issue in sympy_parser
Added test case from issue #3051
Fixed PEP8 violations caused by eariler commits
Added args testsand fixed PEP
Merge branch 'master' into test_lambda
 Added tests for kwargs and keyword errors
Merge pull request #2965 from adityashah30/test_lambda

Patch for issue #3051. Supports sympification of lambda