Type hint _Array on Python 3.9, ..., 3.11

[JamesParrott]

Describe the feature request

Is there a way to avoid the current 'type: ignore, and limit the generic variable to int and float?

pyshp/src/shapefile.py

Line 361 in 19010df

class _Array(array.array, Generic[ARR_TYPE]): # type: ignore[type-arg]

This would justify typing-extensions, if that would help

Contributions

• I am interested in implementing the described feature request and submit as a PR.

[JamesParrott]

Investigated in #404
_Array is needed for its list-like repr

The simplest thing to do is when Python 3.9 is dropped, replace the class definition with class _Array(array.array[ARR_TYPE]):