Merge pull request #32 from apoorv2404/master

Sets Implemented
PyDict Extended
Merge remote-tracking branch 'myrepo/master'
PyDict Implemented
Bug fixes
Merge remote-tracking branch 'upstream/master'
Multi Assign Implemented
Fixes
Bug Fixes
Bug Fixes
Multi target assign in for loops + guard variable optimizations
Minor Fix
Merge remote-tracking branch 'upstream/master'
Default parameters implemeted + Extensive Code restructuring
Zip Partially Implemented
Zip Partially Implemented