shell.py: Fix warnings caused by overwriting cmd with str, and str too. #623

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3 errors, 2 warnings, and 10 notices

multiple exception types must be parenthesized

multiple exception types must be parenthesized

Name 'upn' is not defined

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: codecov/codecov-action@v3. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

No attribute 'items' on None, In Optional[Any], Called from (traceback):, line 379, in current file, line 173, in add

unsupported operand type(s) for item assignment: bool, No attribute '__setitem__' on bool

unsupported operand type(s) for item assignment: int, No attribute '__setitem__' on int

unsupported operand type(s) for item assignment: float, No attribute '__setitem__' on float

unsupported operand type(s) for item assignment: str, No attribute '__setitem__' on str

unsupported operand type(s) for item assignment: bytes, No attribute '__setitem__' on bytes

unsupported operand type(s) for item assignment: None, No attribute '__setitem__' on None

unsupported operand type(s) for item assignment: tuple, No attribute '__setitem__' on tuple

unsupported operand type(s) for item assignment: datetime.datetime, No attribute '__setitem__' on datetime.datetime

unsupported operand type(s) for item assignment: xmlrpc.client.DateTime, No attribute '__setitem__' on xmlrpc.client.DateTime

unsupported operand type(s) for item assignment: xmlrpc.client.Binary, No attribute '__setitem__' on xmlrpc.client.Binary