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Not directly, it wasn’t:

  >>> open('foo') * 3
  Traceback (most recent call last):
    File "<stdin>", line 1, in <module>
  TypeError: unsupported operand type(s) for *: '_io.TextIOWrapper' and 'int'
You have to go to some length to get Python to mix types so badly.


Won't prevent you from shipping this in prod. The stack trace you shown only appearing when you execute the code.


Or run mypy etc., because you care about your code.


Tests will, however.


Sure but that's not what we were talking about. Plus I don't need to add tests like this in my code for it to be valid once compiled




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