Updating pip libraries and fixing linting errors the updates introduced

[stedrow]

Background

Updated all pip libraries and cleaned up pipfile to remove unneeded libraries

Changes

• Switched from nose to nose2
• Updated tests to work with nose2
• Updated code where needed for new recommendations from pylint and mypi:
  • Use of f-strings in place of older {} .format style
  • Adding Optional typing in places where variables were defaulting to None
  • Adding utf8-encoding for open functions
  • Adding timeout params for requests functions
  • Replacing dict() with {} literals
  • Replacing list() with [] literals
  • Adding maxsplit param to string splits
  • Switched one-liner open...read() statements to with open statements for file cleanup (no .close() needed), error handling and overall code readability

Testing

[CLAassistant]

All committers have signed the CLA.