ENH: __array_function__ support for most of numpy.core

With the notable exceptions of np.einsum and np.block.

xref GH12028

1 files changed, 25 insertions, 0 deletions

diff --git a/numpy/core/arrayprint.py b/numpy/core/arrayprint.py
index 960e64ca3..1b9fbbfa9 100644
--- a/numpy/core/arrayprint.py
+++ b/numpy/core/arrayprint.py
@@ -48,6 +48,7 @@ from .fromnumeric import ravel, any
 from .numeric import concatenate, asarray, errstate
 from .numerictypes import (longlong, intc, int_, float_, complex_, bool_,
                            flexible)
+from .overrides import array_function_dispatch
 import warnings
 import contextlib
 
@@ -496,6 +497,16 @@ def _array2string(a, options, separator=' ', prefix=""):
     return lst
 
 
+def _array2string_dispatcher(
+        a, max_line_width=None, precision=None,
+        suppress_small=None, separator=None, prefix=None,
+        style=None, formatter=None, threshold=None,
+        edgeitems=None, sign=None, floatmode=None, suffix=None,
+        **kwarg):
+    return (a,)
+
+
+@array_function_dispatch(_array2string_dispatcher)
 def array2string(a, max_line_width=None, precision=None,
                  suppress_small=None, separator=' ', prefix="",
                  style=np._NoValue, formatter=None, threshold=None,
@@ -1370,6 +1381,12 @@ def dtype_short_repr(dtype):
     return typename
 
 
+def _array_repr_dispatcher(
+        arr, max_line_width=None, precision=None, suppress_small=None):
+    return (arr,)
+
+
+@array_function_dispatch(_array_repr_dispatcher)
 def array_repr(arr, max_line_width=None, precision=None, suppress_small=None):
     """
     Return the string representation of an array.
@@ -1454,8 +1471,16 @@ def array_repr(arr, max_line_width=None, precision=None, suppress_small=None):
 
     return arr_str + spacer + dtype_str
 
+
 _guarded_str = _recursive_guard()(str)
 
+
+def _array_str_dispatcher(
+        a, max_line_width=None, precision=None, suppress_small=None):
+    return (a,)
+
+
+@array_function_dispatch(_array_str_dispatcher)
 def array_str(a, max_line_width=None, precision=None, suppress_small=None):
     """
     Return a string representation of the data in an array.