Troubleshoot py310 build

pandas/_libs/algos.pyx

@@ -1030,9 +1030,9 @@ def rank_1d(
         if rank_t is object:
             nan_fill_val = Infinity()
         elif rank_t is int64_t:
-            nan_fill_val = np.iinfo(np.int64).max
+            nan_fill_val = util.INT64_MAX
         elif rank_t is uint64_t:
-            nan_fill_val = np.iinfo(np.uint64).max
+            nan_fill_val = util.UINT64_MAX
         else:
             nan_fill_val = np.inf
         order = (masked_vals, mask, labels)
@@ -1393,7 +1393,7 @@ def rank_2d(
 
             # int64 and datetimelike
             else:
-                nan_value = np.iinfo(np.int64).max
+                nan_value = util.INT64_MAX
 
         else:
             if rank_t is object:

pandas/_libs/lib.pyx

@@ -118,6 +118,10 @@ cdef:
 
     float64_t NaN = <float64_t>np.NaN
 
+# python-visible
+i8max = INT64_MAX
+u8max = UINT64_MAX
+
 
 @cython.wraparound(False)
 @cython.boundscheck(False)

pandas/core/util/hashing.py

@@ -14,6 +14,7 @@
 
 import numpy as np
 
+from pandas._libs import lib
 from pandas._libs.hashing import hash_object_array
 from pandas._typing import (
     ArrayLike,
@@ -244,7 +245,7 @@ def _hash_categorical(cat: Categorical, encoding: str, hash_key: str) -> np.ndar
         result = np.zeros(len(mask), dtype="uint64")
 
     if mask.any():
-        result[mask] = np.iinfo(np.uint64).max
+        result[mask] = lib.u8max
 
     return result
 

pandas/tests/scalar/timedelta/test_timedelta.py

@@ -4,6 +4,7 @@
 import numpy as np
 import pytest
 
+from pandas._libs import lib
 from pandas._libs.tslibs import (
     NaT,
     iNaT,
@@ -391,8 +392,7 @@ def test_round_implementation_bounds(self):
         "method", [Timedelta.round, Timedelta.floor, Timedelta.ceil]
     )
     def test_round_sanity(self, method, n, request):
-        iinfo = np.iinfo(np.int64)
-        val = np.random.randint(iinfo.min + 1, iinfo.max, dtype=np.int64)
+        val = np.random.randint(iNaT + 1, lib.i8max, dtype=np.int64)
         td = Timedelta(val)
 
         assert method(td, "ns") == td
@@ -552,8 +552,8 @@ def test_implementation_limits(self):
 
         # GH 12727
         # timedelta limits correspond to int64 boundaries
-        assert min_td.value == np.iinfo(np.int64).min + 1
-        assert max_td.value == np.iinfo(np.int64).max
+        assert min_td.value == iNaT + 1
+        assert max_td.value == lib.i8max
 
         # Beyond lower limit, a NAT before the Overflow
         assert (min_td - Timedelta(1, "ns")) is NaT

pandas/tests/scalar/timestamp/test_unary_ops.py

@@ -6,11 +6,13 @@
 import pytz
 from pytz import utc
 
+from pandas._libs import lib
 from pandas._libs.tslibs import (
     NaT,
     Timedelta,
     Timestamp,
     conversion,
+    iNaT,
     to_offset,
 )
 from pandas._libs.tslibs.period import INVALID_FREQ_ERR_MSG
@@ -279,8 +281,7 @@ def test_round_implementation_bounds(self):
         "method", [Timestamp.round, Timestamp.floor, Timestamp.ceil]
     )
     def test_round_sanity(self, method, n):
-        iinfo = np.iinfo(np.int64)
-        val = np.random.randint(iinfo.min + 1, iinfo.max, dtype=np.int64)
+        val = np.random.randint(iNaT + 1, lib.i8max, dtype=np.int64)
         ts = Timestamp(val)
 
         def checker(res, ts, nanos):