ENH: allow explicit `like=None` in all array creation functions (#22379)

Addresses #22069. As discussed in the existing issue @seberg stated that it would be best to support explicitly defined like=None when creating arange objects.

Extended to all other array_creation methods which did not currently support like=None.

Closes gh-22069

5 files changed, 94 insertions, 77 deletions

diff --git a/numpy/core/multiarray.pyi b/numpy/core/multiarray.pyi
index e943b110b..45ee17f03 100644
--- a/numpy/core/multiarray.pyi
+++ b/numpy/core/multiarray.pyi
@@ -175,7 +175,7 @@ def array(
     order: _OrderKACF = ...,
     subok: L[True],
     ndmin: int = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> _ArrayType: ...
 @overload
 def array(
@@ -186,7 +186,7 @@ def array(
     order: _OrderKACF = ...,
     subok: bool = ...,
     ndmin: int = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def array(
@@ -197,7 +197,7 @@ def array(
     order: _OrderKACF = ...,
     subok: bool = ...,
     ndmin: int = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def array(
@@ -208,7 +208,7 @@ def array(
     order: _OrderKACF = ...,
     subok: bool = ...,
     ndmin: int = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def array(
@@ -219,7 +219,7 @@ def array(
     order: _OrderKACF = ...,
     subok: bool = ...,
     ndmin: int = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -228,7 +228,7 @@ def zeros(
     dtype: None = ...,
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[float64]: ...
 @overload
 def zeros(
@@ -236,7 +236,7 @@ def zeros(
     dtype: _DTypeLike[_SCT],
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def zeros(
@@ -244,7 +244,7 @@ def zeros(
     dtype: DTypeLike,
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -253,7 +253,7 @@ def empty(
     dtype: None = ...,
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[float64]: ...
 @overload
 def empty(
@@ -261,7 +261,7 @@ def empty(
     dtype: _DTypeLike[_SCT],
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def empty(
@@ -269,7 +269,7 @@ def empty(
     dtype: DTypeLike,
     order: _OrderCF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -467,7 +467,7 @@ def asarray(
     dtype: None = ...,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asarray(
@@ -475,7 +475,7 @@ def asarray(
     dtype: None = ...,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def asarray(
@@ -483,7 +483,7 @@ def asarray(
     dtype: _DTypeLike[_SCT],
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asarray(
@@ -491,7 +491,7 @@ def asarray(
     dtype: DTypeLike,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -500,7 +500,7 @@ def asanyarray(
     dtype: None = ...,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> _ArrayType: ...
 @overload
 def asanyarray(
@@ -508,7 +508,7 @@ def asanyarray(
     dtype: None = ...,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asanyarray(
@@ -516,7 +516,7 @@ def asanyarray(
     dtype: None = ...,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def asanyarray(
@@ -524,7 +524,7 @@ def asanyarray(
     dtype: _DTypeLike[_SCT],
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asanyarray(
@@ -532,7 +532,7 @@ def asanyarray(
     dtype: DTypeLike,
     order: _OrderKACF = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -540,28 +540,28 @@ def ascontiguousarray(
     a: _ArrayLike[_SCT],
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def ascontiguousarray(
     a: object,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def ascontiguousarray(
     a: Any,
     dtype: _DTypeLike[_SCT],
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def ascontiguousarray(
     a: Any,
     dtype: DTypeLike,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -569,28 +569,28 @@ def asfortranarray(
     a: _ArrayLike[_SCT],
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asfortranarray(
     a: object,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def asfortranarray(
     a: Any,
     dtype: _DTypeLike[_SCT],
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def asfortranarray(
     a: Any,
     dtype: DTypeLike,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 # In practice `list[Any]` is list with an int, int and a valid
@@ -608,7 +608,7 @@ def fromstring(
     count: SupportsIndex = ...,
     *,
     sep: str,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[float64]: ...
 @overload
 def fromstring(
@@ -617,7 +617,7 @@ def fromstring(
     count: SupportsIndex = ...,
     *,
     sep: str,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def fromstring(
@@ -626,7 +626,7 @@ def fromstring(
     count: SupportsIndex = ...,
     *,
     sep: str,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 def frompyfunc(
@@ -645,7 +645,7 @@ def fromfile(
     sep: str = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[float64]: ...
 @overload
 def fromfile(
@@ -655,7 +655,7 @@ def fromfile(
     sep: str = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def fromfile(
@@ -665,7 +665,7 @@ def fromfile(
     sep: str = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -674,7 +674,7 @@ def fromiter(
     dtype: _DTypeLike[_SCT],
     count: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def fromiter(
@@ -682,7 +682,7 @@ def fromiter(
     dtype: DTypeLike,
     count: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -692,7 +692,7 @@ def frombuffer(
     count: SupportsIndex = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[float64]: ...
 @overload
 def frombuffer(
@@ -701,7 +701,7 @@ def frombuffer(
     count: SupportsIndex = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def frombuffer(
@@ -710,7 +710,7 @@ def frombuffer(
     count: SupportsIndex = ...,
     offset: SupportsIndex = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 @overload
@@ -718,7 +718,7 @@ def arange(  # type: ignore[misc]
     stop: _IntLike_co,
     /, *,
     dtype: None = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[signedinteger[Any]]: ...
 @overload
 def arange(  # type: ignore[misc]
@@ -727,14 +727,14 @@ def arange(  # type: ignore[misc]
     step: _IntLike_co = ...,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[signedinteger[Any]]: ...
 @overload
 def arange(  # type: ignore[misc]
     stop: _FloatLike_co,
     /, *,
     dtype: None = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[floating[Any]]: ...
 @overload
 def arange(  # type: ignore[misc]
@@ -743,14 +743,14 @@ def arange(  # type: ignore[misc]
     step: _FloatLike_co = ...,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[floating[Any]]: ...
 @overload
 def arange(
     stop: _TD64Like_co,
     /, *,
     dtype: None = ...,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[timedelta64]: ...
 @overload
 def arange(
@@ -759,7 +759,7 @@ def arange(
     step: _TD64Like_co = ...,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[timedelta64]: ...
 @overload
 def arange(  # both start and stop must always be specified for datetime64
@@ -768,14 +768,14 @@ def arange(  # both start and stop must always be specified for datetime64
     step: datetime64 = ...,
     dtype: None = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[datetime64]: ...
 @overload
 def arange(
     stop: Any,
     /, *,
     dtype: _DTypeLike[_SCT],
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def arange(
@@ -784,14 +784,14 @@ def arange(
     step: Any = ...,
     dtype: _DTypeLike[_SCT] = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[_SCT]: ...
 @overload
 def arange(
     stop: Any, /,
     *,
     dtype: DTypeLike,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 @overload
 def arange(
@@ -800,7 +800,7 @@ def arange(
     step: Any = ...,
     dtype: DTypeLike = ...,
     *,
-    like: _SupportsArrayFunc = ...,
+    like: None | _SupportsArrayFunc = ...,
 ) -> NDArray[Any]: ...
 
 def datetime_data(
diff --git a/numpy/core/src/multiarray/arrayfunction_override.c b/numpy/core/src/multiarray/arrayfunction_override.c
index af53d7821..2bb3fbe28 100644
--- a/numpy/core/src/multiarray/arrayfunction_override.c
+++ b/numpy/core/src/multiarray/arrayfunction_override.c
@@ -63,7 +63,7 @@ pyobject_array_insert(PyObject **array, int length, int index, PyObject *item)
  * Collects arguments with __array_function__ and their corresponding methods
  * in the order in which they should be tried (i.e., skipping redundant types).
  * `relevant_args` is expected to have been produced by PySequence_Fast.
- * Returns the number of arguments, or -1 on failure. 
+ * Returns the number of arguments, or -1 on failure.
  */
 static int
 get_implementing_args_and_methods(PyObject *relevant_args,
@@ -384,7 +384,7 @@ array_implement_array_function(
  * only. Added as an extension to NEP-18 in an effort to bring NEP-35 to
  * life with minimal dispatch overhead.
  *
- * The caller must ensure that `like != NULL`.
+ * The caller must ensure that `like != Py_None` or `like == NULL`.
  */
 NPY_NO_EXPORT PyObject *
 array_implement_c_array_function_creation(
diff --git a/numpy/core/src/multiarray/multiarraymodule.c b/numpy/core/src/multiarray/multiarraymodule.c
index a5b66f5a8..dda8831c5 100644
--- a/numpy/core/src/multiarray/multiarraymodule.c
+++ b/numpy/core/src/multiarray/multiarraymodule.c
@@ -1734,7 +1734,7 @@ array_array(PyObject *NPY_UNUSED(ignored),
     int ndmin = 0;
     PyArray_Descr *type = NULL;
     NPY_ORDER order = NPY_KEEPORDER;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (len_args != 1 || (kwnames != NULL)) {
@@ -1750,7 +1750,7 @@ array_array(PyObject *NPY_UNUSED(ignored),
             Py_XDECREF(type);
             return NULL;
         }
-        if (like != NULL) {
+        if (like != Py_None) {
             PyObject *deferred = array_implement_c_array_function_creation(
                     "array", like, NULL, NULL, args, len_args, kwnames);
             if (deferred != Py_NotImplemented) {
@@ -1777,7 +1777,7 @@ array_asarray(PyObject *NPY_UNUSED(ignored),
     PyObject *op;
     PyArray_Descr *type = NULL;
     NPY_ORDER order = NPY_KEEPORDER;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (len_args != 1 || (kwnames != NULL)) {
@@ -1790,7 +1790,7 @@ array_asarray(PyObject *NPY_UNUSED(ignored),
             Py_XDECREF(type);
             return NULL;
         }
-        if (like != NULL) {
+        if (like != Py_None) {
             PyObject *deferred = array_implement_c_array_function_creation(
                     "asarray", like, NULL, NULL, args, len_args, kwnames);
             if (deferred != Py_NotImplemented) {
@@ -1816,7 +1816,7 @@ array_asanyarray(PyObject *NPY_UNUSED(ignored),
     PyObject *op;
     PyArray_Descr *type = NULL;
     NPY_ORDER order = NPY_KEEPORDER;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (len_args != 1 || (kwnames != NULL)) {
@@ -1829,7 +1829,7 @@ array_asanyarray(PyObject *NPY_UNUSED(ignored),
             Py_XDECREF(type);
             return NULL;
         }
-        if (like != NULL) {
+        if (like != Py_None) {
             PyObject *deferred = array_implement_c_array_function_creation(
                     "asanyarray", like, NULL, NULL, args, len_args, kwnames);
             if (deferred != Py_NotImplemented) {
@@ -1855,7 +1855,7 @@ array_ascontiguousarray(PyObject *NPY_UNUSED(ignored),
 {
     PyObject *op;
     PyArray_Descr *type = NULL;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (len_args != 1 || (kwnames != NULL)) {
@@ -1867,7 +1867,7 @@ array_ascontiguousarray(PyObject *NPY_UNUSED(ignored),
             Py_XDECREF(type);
             return NULL;
         }
-        if (like != NULL) {
+        if (like != Py_None) {
             PyObject *deferred = array_implement_c_array_function_creation(
                     "ascontiguousarray", like, NULL, NULL, args, len_args, kwnames);
             if (deferred != Py_NotImplemented) {
@@ -1893,7 +1893,7 @@ array_asfortranarray(PyObject *NPY_UNUSED(ignored),
 {
     PyObject *op;
     PyArray_Descr *type = NULL;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (len_args != 1 || (kwnames != NULL)) {
@@ -1905,7 +1905,7 @@ array_asfortranarray(PyObject *NPY_UNUSED(ignored),
             Py_XDECREF(type);
             return NULL;
         }
-        if (like != NULL) {
+        if (like != Py_None) {
             PyObject *deferred = array_implement_c_array_function_creation(
                     "asfortranarray", like, NULL, NULL, args, len_args, kwnames);
             if (deferred != Py_NotImplemented) {
@@ -1978,7 +1978,7 @@ array_empty(PyObject *NPY_UNUSED(ignored),
     NPY_ORDER order = NPY_CORDER;
     npy_bool is_f_order;
     PyArrayObject *ret = NULL;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (npy_parse_arguments("empty", args, len_args, kwnames,
@@ -1990,7 +1990,7 @@ array_empty(PyObject *NPY_UNUSED(ignored),
         goto fail;
     }
 
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "empty", like, NULL, NULL, args, len_args, kwnames);
         if (deferred != Py_NotImplemented) {
@@ -2180,7 +2180,7 @@ array_zeros(PyObject *NPY_UNUSED(ignored),
     NPY_ORDER order = NPY_CORDER;
     npy_bool is_f_order = NPY_FALSE;
     PyArrayObject *ret = NULL;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (npy_parse_arguments("zeros", args, len_args, kwnames,
@@ -2193,7 +2193,7 @@ array_zeros(PyObject *NPY_UNUSED(ignored),
     }
 
 
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "zeros", like, NULL, NULL, args, len_args, kwnames);
         if (deferred != Py_NotImplemented) {
@@ -2256,7 +2256,7 @@ array_fromstring(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds
     char *sep = NULL;
     Py_ssize_t s;
     static char *kwlist[] = {"string", "dtype", "count", "sep", "like", NULL};
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     PyArray_Descr *descr = NULL;
 
     if (!PyArg_ParseTupleAndKeywords(args, keywds,
@@ -2265,7 +2265,7 @@ array_fromstring(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds
         Py_XDECREF(descr);
         return NULL;
     }
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "fromstring", like, args, keywds, NULL, 0, NULL);
         if (deferred != Py_NotImplemented) {
@@ -2297,7 +2297,7 @@ array_fromfile(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)
     char *sep = "";
     Py_ssize_t nin = -1;
     static char *kwlist[] = {"file", "dtype", "count", "sep", "offset", "like", NULL};
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     PyArray_Descr *type = NULL;
     int own;
     npy_off_t orig_pos = 0, offset = 0;
@@ -2310,7 +2310,7 @@ array_fromfile(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)
         return NULL;
     }
 
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "fromfile", like, args, keywds, NULL, 0, NULL);
         if (deferred != Py_NotImplemented) {
@@ -2387,7 +2387,7 @@ array_fromiter(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)
     PyObject *iter;
     Py_ssize_t nin = -1;
     static char *kwlist[] = {"iter", "dtype", "count", "like", NULL};
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     PyArray_Descr *descr = NULL;
 
     if (!PyArg_ParseTupleAndKeywords(args, keywds,
@@ -2396,7 +2396,7 @@ array_fromiter(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds)
         Py_XDECREF(descr);
         return NULL;
     }
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "fromiter", like, args, keywds, NULL, 0, NULL);
         if (deferred != Py_NotImplemented) {
@@ -2414,7 +2414,7 @@ array_frombuffer(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds
     PyObject *obj = NULL;
     Py_ssize_t nin = -1, offset = 0;
     static char *kwlist[] = {"buffer", "dtype", "count", "offset", "like", NULL};
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     PyArray_Descr *type = NULL;
 
     if (!PyArg_ParseTupleAndKeywords(args, keywds,
@@ -2424,7 +2424,7 @@ array_frombuffer(PyObject *NPY_UNUSED(ignored), PyObject *args, PyObject *keywds
         return NULL;
     }
 
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "frombuffer", like, args, keywds, NULL, 0, NULL);
         if (deferred != Py_NotImplemented) {
@@ -3043,7 +3043,7 @@ array_arange(PyObject *NPY_UNUSED(ignored),
 {
     PyObject *o_start = NULL, *o_stop = NULL, *o_step = NULL, *range=NULL;
     PyArray_Descr *typecode = NULL;
-    PyObject *like = NULL;
+    PyObject *like = Py_None;
     NPY_PREPARE_ARGPARSER;
 
     if (npy_parse_arguments("arange", args, len_args, kwnames,
@@ -3056,7 +3056,7 @@ array_arange(PyObject *NPY_UNUSED(ignored),
         Py_XDECREF(typecode);
         return NULL;
     }
-    if (like != NULL) {
+    if (like != Py_None) {
         PyObject *deferred = array_implement_c_array_function_creation(
                 "arange", like, NULL, NULL, args, len_args, kwnames);
         if (deferred != Py_NotImplemented) {
diff --git a/numpy/core/tests/test_multiarray.py b/numpy/core/tests/test_multiarray.py
index e27a39c3a..773dd5bfd 100644
--- a/numpy/core/tests/test_multiarray.py
+++ b/numpy/core/tests/test_multiarray.py
@@ -1185,7 +1185,6 @@ class TestCreation:
         expected = expected * (arr.nbytes // len(expected))
         assert arr.tobytes() == expected
 
-
 class TestStructured:
     def test_subarray_field_access(self):
         a = np.zeros((3, 5), dtype=[('a', ('i4', (2, 2)))])
diff --git a/numpy/core/tests/test_overrides.py b/numpy/core/tests/test_overrides.py
index e68406ebd..84e864afd 100644
--- a/numpy/core/tests/test_overrides.py
+++ b/numpy/core/tests/test_overrides.py
@@ -622,3 +622,21 @@ class TestArrayLike:
         with assert_raises(TypeError):
             # Raises the error about `value_error` being invalid first
             np.array(1, value_error=True, like=ref)
+
+    @pytest.mark.parametrize('function, args, kwargs', _array_tests)
+    def test_like_as_none(self, function, args, kwargs):
+        self.add_method('array', self.MyArray)
+        self.add_method(function, self.MyArray)
+        np_func = getattr(np, function)
+
+        like_args = tuple(a() if callable(a) else a for a in args)
+        # required for loadtxt and genfromtxt to init w/o error.
+        like_args_exp = tuple(a() if callable(a) else a for a in args)
+
+        array_like = np_func(*like_args, **kwargs, like=None)
+        expected = np_func(*like_args_exp, **kwargs)
+        # Special-case np.empty to ensure values match
+        if function == "empty":
+            array_like.fill(1)
+            expected.fill(1)
+        assert_equal(array_like, expected)