ENH: Remove NINF and PINF usages (#54468)

ENH: Remove NINF usages

Author: mtsokol

pandas/_libs/window/aggregations.pyx

@@ -51,8 +51,8 @@ cdef extern from "pandas/skiplist.h":
     int skiplist_min_rank(skiplist_t*, double) nogil
 
 cdef:
-    float32_t MINfloat32 = np.NINF
-    float64_t MINfloat64 = np.NINF
+    float32_t MINfloat32 = -np.inf
+    float64_t MINfloat64 = -np.inf
 
     float32_t MAXfloat32 = np.inf
     float64_t MAXfloat64 = np.inf

pandas/tests/dtypes/test_missing.py

@@ -805,7 +805,7 @@ def test_empty_like(self):
     complex("inf"),
     complex("-inf"),
     np.inf,
-    np.NINF,
+    -np.inf,
 ]
 
 int_na_vals = [

pandas/tests/io/json/test_pandas.py

@@ -393,7 +393,7 @@ def test_frame_read_json_dtype_missing_value(self, dtype):
 
         tm.assert_frame_equal(result, expected)
 
-    @pytest.mark.parametrize("inf", [np.inf, np.NINF])
+    @pytest.mark.parametrize("inf", [np.inf, -np.inf])
     @pytest.mark.parametrize("dtype", [True, False])
     def test_frame_infinity(self, inf, dtype):
         # infinities get mapped to nulls which get mapped to NaNs during