From 218011281b1653a4b7f5c39c70b5cb4f57a8e6b7 Mon Sep 17 00:00:00 2001
From: Matthew Roeschke <10647082+mroeschke@users.noreply.github.com>
Date: Mon, 9 Oct 2023 12:02:44 -0700
Subject: [PATCH] COMPAT: Update old numpy aliases

---
 pandas/io/stata.py                                   | 2 +-
 pandas/tests/frame/constructors/test_from_records.py | 2 +-
 pandas/tests/reshape/concat/test_append.py           | 4 ++--
 pandas/tests/series/methods/test_astype.py           | 4 ++--
 4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/pandas/io/stata.py b/pandas/io/stata.py
index d630a5ff8a41c..d00f1c666d5d6 100644
--- a/pandas/io/stata.py
+++ b/pandas/io/stata.py
@@ -977,7 +977,7 @@ def __init__(self) -> None:
         # with a label, but the underlying variable is -127 to 100
         # we're going to drop the label and cast to int
         self.DTYPE_MAP = dict(
-            list(zip(range(1, 245), [np.dtype("a" + str(i)) for i in range(1, 245)]))
+            [(i, np.dtype(f"S{i}")) for i in range(1, 245)]
             + [
                 (251, np.dtype(np.int8)),
                 (252, np.dtype(np.int16)),
diff --git a/pandas/tests/frame/constructors/test_from_records.py b/pandas/tests/frame/constructors/test_from_records.py
index 7dffa7bb242d5..55d4a6c3b39fa 100644
--- a/pandas/tests/frame/constructors/test_from_records.py
+++ b/pandas/tests/frame/constructors/test_from_records.py
@@ -281,7 +281,7 @@ def test_frame_from_records_utc(self):
 
     def test_from_records_to_records(self):
         # from numpy documentation
-        arr = np.zeros((2,), dtype=("i4,f4,a10"))
+        arr = np.zeros((2,), dtype=("i4,f4,S10"))
         arr[:] = [(1, 2.0, "Hello"), (2, 3.0, "World")]
 
         DataFrame.from_records(arr)
diff --git a/pandas/tests/reshape/concat/test_append.py b/pandas/tests/reshape/concat/test_append.py
index 386f363c81557..81ca227fb7afb 100644
--- a/pandas/tests/reshape/concat/test_append.py
+++ b/pandas/tests/reshape/concat/test_append.py
@@ -91,10 +91,10 @@ def test_append_length0_frame(self, sort):
         tm.assert_frame_equal(df5, expected)
 
     def test_append_records(self):
-        arr1 = np.zeros((2,), dtype=("i4,f4,a10"))
+        arr1 = np.zeros((2,), dtype=("i4,f4,S10"))
         arr1[:] = [(1, 2.0, "Hello"), (2, 3.0, "World")]
 
-        arr2 = np.zeros((3,), dtype=("i4,f4,a10"))
+        arr2 = np.zeros((3,), dtype=("i4,f4,S10"))
         arr2[:] = [(3, 4.0, "foo"), (5, 6.0, "bar"), (7.0, 8.0, "baz")]
 
         df1 = DataFrame(arr1)
diff --git a/pandas/tests/series/methods/test_astype.py b/pandas/tests/series/methods/test_astype.py
index b6c409397c9fb..03fc6cba2902a 100644
--- a/pandas/tests/series/methods/test_astype.py
+++ b/pandas/tests/series/methods/test_astype.py
@@ -403,12 +403,12 @@ def test_astype_unicode(self):
             #  bytes with obj.decode() instead of str(obj)
             item = "野菜食べないとやばい"
             ser = Series([item.encode()])
-            result = ser.astype("unicode")
+            result = ser.astype(np.str_)
             expected = Series([item])
             tm.assert_series_equal(result, expected)
 
         for ser in test_series:
-            res = ser.astype("unicode")
+            res = ser.astype(np.str_)
             expec = ser.map(str)
             tm.assert_series_equal(res, expec)