CI: cython deprecation warnings (#39551)

Author: jbrockmendel

asv_bench/benchmarks/series_methods.py

@@ -108,8 +108,8 @@ def setup(self):
         self.vals_short = np.arange(2).astype(object)
         self.vals_long = np.arange(10 ** 5).astype(object)
         # because of nans floats are special:
-        self.s_long_floats = Series(np.arange(10 ** 5, dtype=np.float)).astype(object)
-        self.vals_long_floats = np.arange(10 ** 5, dtype=np.float).astype(object)
+        self.s_long_floats = Series(np.arange(10 ** 5, dtype=np.float_)).astype(object)
+        self.vals_long_floats = np.arange(10 ** 5, dtype=np.float_).astype(object)
 
     def time_isin_nans(self):
         # if nan-objects are different objects,

pandas/tests/io/parser/test_parse_dates.py

@@ -37,8 +37,8 @@
 def test_read_csv_with_custom_date_parser(all_parsers):
     # GH36111
     def __custom_date_parser(time):
-        time = time.astype(np.float)
-        time = time.astype(np.int)  # convert float seconds to int type
+        time = time.astype(np.float_)
+        time = time.astype(np.int_)  # convert float seconds to int type
         return pd.to_timedelta(time, unit="s")
 
     testdata = StringIO(