Describe the issue:

When trying to type hint functions accepting scalars, I get unexpected error messages from my type checker (Pylance). As np.float_ is a subtype of python's native float type, I would expect to be able to pass a variable with type np.float_ when a native float is expected.

Reproduce the code example:

import numpy as np

def idx(x: float) -> float:
    return x

arr = np.arange(5.0, dtype=np.float_)
sum = np.sum(arr)
idx(sum)

Error message:

Argument of type "float_" cannot be assigned to parameter "x" of type "float" in function "idx"
  "float_" is incompatible with "float" Pylance (reportGeneralTypeIssues)

Runtime information:

1.24.1
3.11.0 | packaged by conda-forge | (main, Jan 14 2023, 12:27:40) [GCC 11.3.0]
WARNING: threadpoolctl not found in system! Install it by pip install threadpoolctl. Once installed, try np.show_runtime again for more detailed build information
[{'simd_extensions': {'baseline': ['SSE', 'SSE2', 'SSE3'],
'found': ['SSSE3',
'SSE41',
'POPCNT',
'SSE42',
'AVX',
'F16C',
'FMA3',
'AVX2'],
'not_found': ['AVX512F',
'AVX512CD',
'AVX512_KNL',
'AVX512_KNM',
'AVX512_SKX',
'AVX512_CLX',
'AVX512_CNL',
'AVX512_ICL']}}]
None

Context for the issue:

This issue makes it either impossible or much harder to correctly type hint functions such that they are compatible with numpy.