ENH: __array_function__ support for np.lib, part 2/2 (#12119)

* ENH: __array_function__ support for np.lib, part 2

xref GH12028

np.lib.npyio through np.lib.ufunclike

* Fix failures in numpy/core/tests/test_overrides.py

* CLN: handle depreaction in dispatchers for np.lib.ufunclike

* CLN: fewer dispatchers in lib.twodim_base

* CLN: fewer dispatchers in lib.shape_base

* CLN: more dispatcher consolidation

* BUG: fix test failure

* Use all method instead of function in assert_equal

* DOC: indicate n is array_like in scimath.logn

* MAINT: updates per review

* MAINT: more conservative changes in assert_array_equal

* MAINT: add back in comment

* MAINT: casting tweaks in assert_array_equal

* MAINT: fixes and tests for assert_array_equal on subclasses

1 files changed, 11 insertions, 0 deletions

diff --git a/numpy/lib/stride_tricks.py b/numpy/lib/stride_tricks.py
index ca13738c1..3115c5e37 100644
--- a/numpy/lib/stride_tricks.py
+++ b/numpy/lib/stride_tricks.py
@@ -8,6 +8,7 @@ NumPy reference guide.
 from __future__ import division, absolute_import, print_function
 
 import numpy as np
+from numpy.core.overrides import array_function_dispatch
 
 __all__ = ['broadcast_to', 'broadcast_arrays']
 
@@ -135,6 +136,11 @@ def _broadcast_to(array, shape, subok, readonly):
     return result
 
 
+def _broadcast_to_dispatcher(array, shape, subok=None):
+    return (array,)
+
+
+@array_function_dispatch(_broadcast_to_dispatcher)
 def broadcast_to(array, shape, subok=False):
     """Broadcast an array to a new shape.
 
@@ -195,6 +201,11 @@ def _broadcast_shape(*args):
     return b.shape
 
 
+def _broadcast_arrays_dispatcher(*args, **kwargs):
+    return args
+
+
+@array_function_dispatch(_broadcast_arrays_dispatcher)
 def broadcast_arrays(*args, **kwargs):
     """
     Broadcast any number of arrays against each other.