You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
85 lines
2.1 KiB
Python
85 lines
2.1 KiB
Python
"""Tools for testing implementations of __array_function__ and ufunc overrides
|
|
|
|
|
|
"""
|
|
|
|
import numpy._core.umath as _umath
|
|
from numpy import ufunc as _ufunc
|
|
from numpy._core.overrides import ARRAY_FUNCTIONS as _array_functions
|
|
|
|
|
|
def get_overridable_numpy_ufuncs():
|
|
"""List all numpy ufuncs overridable via `__array_ufunc__`
|
|
|
|
Parameters
|
|
----------
|
|
None
|
|
|
|
Returns
|
|
-------
|
|
set
|
|
A set containing all overridable ufuncs in the public numpy API.
|
|
"""
|
|
ufuncs = {obj for obj in _umath.__dict__.values()
|
|
if isinstance(obj, _ufunc)}
|
|
return ufuncs
|
|
|
|
|
|
def allows_array_ufunc_override(func):
|
|
"""Determine if a function can be overridden via `__array_ufunc__`
|
|
|
|
Parameters
|
|
----------
|
|
func : callable
|
|
Function that may be overridable via `__array_ufunc__`
|
|
|
|
Returns
|
|
-------
|
|
bool
|
|
`True` if `func` is overridable via `__array_ufunc__` and
|
|
`False` otherwise.
|
|
|
|
Notes
|
|
-----
|
|
This function is equivalent to ``isinstance(func, np.ufunc)`` and
|
|
will work correctly for ufuncs defined outside of Numpy.
|
|
|
|
"""
|
|
return isinstance(func, _ufunc)
|
|
|
|
|
|
def get_overridable_numpy_array_functions():
|
|
"""List all numpy functions overridable via `__array_function__`
|
|
|
|
Parameters
|
|
----------
|
|
None
|
|
|
|
Returns
|
|
-------
|
|
set
|
|
A set containing all functions in the public numpy API that are
|
|
overridable via `__array_function__`.
|
|
|
|
"""
|
|
# 'import numpy' doesn't import recfunctions, so make sure it's imported
|
|
# so ufuncs defined there show up in the ufunc listing
|
|
from numpy.lib import recfunctions # noqa: F401
|
|
return _array_functions.copy()
|
|
|
|
def allows_array_function_override(func):
|
|
"""Determine if a Numpy function can be overridden via `__array_function__`
|
|
|
|
Parameters
|
|
----------
|
|
func : callable
|
|
Function that may be overridable via `__array_function__`
|
|
|
|
Returns
|
|
-------
|
|
bool
|
|
`True` if `func` is a function in the Numpy API that is
|
|
overridable via `__array_function__` and `False` otherwise.
|
|
"""
|
|
return func in _array_functions
|