"It's not statically typed, which can make working on a large codebase with more people more painful. It also forces you to write more unit testing code coverage to make up for the lack of a static compiler checking things for you."

I never missed static typing on large code bases but I had numerous bugs caused by python's implicit type conversions - string to iterable of characters ["h", "e", "l", "l", "o"], None to False, string "no" to True, 0 to False, "" to False, etc.

A lot of this mirrors C's infuriating implicit type conversions.