From 4e40471bfe45c682523328cb7a40106c7b1b1e6a Mon Sep 17 00:00:00 2001
From: louis <@>
Date: Sat, 2 Nov 2019 11:31:51 +0000
Subject: [PATCH 1/2] TST: Test Series constructor with dict containing lists
 and explicit dtype.

---
 pandas/tests/series/test_constructors.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pandas/tests/series/test_constructors.py b/pandas/tests/series/test_constructors.py
index fb2a8dde96e2b..e28c8f029f784 100644
--- a/pandas/tests/series/test_constructors.py
+++ b/pandas/tests/series/test_constructors.py
@@ -1035,6 +1035,13 @@ def test_constructor_dict(self):
         expected.iloc[1] = 1
         tm.assert_series_equal(result, expected)
 
+    def test_constructor_dict_list_value_explicit_dtype(self):
+        # GH 18625
+        d = {'a': [[2], [3], [4]]}
+        result = Series(d, index=['a'], dtype="object")
+        expected = Series(d, index=['a'])
+        tm.assert_series_equal(result, expected)
+
     def test_constructor_dict_order(self):
         # GH19018
         # initialization ordering: by insertion order if python>= 3.6, else

From ef10afc9de031e4bd3ca48136f855c7bfb91db9f Mon Sep 17 00:00:00 2001
From: louis <@>
Date: Sat, 2 Nov 2019 12:16:37 +0000
Subject: [PATCH 2/2] Black formatting.

---
 pandas/tests/series/test_constructors.py | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/pandas/tests/series/test_constructors.py b/pandas/tests/series/test_constructors.py
index e28c8f029f784..4cbade2669cc6 100644
--- a/pandas/tests/series/test_constructors.py
+++ b/pandas/tests/series/test_constructors.py
@@ -1037,9 +1037,9 @@ def test_constructor_dict(self):
 
     def test_constructor_dict_list_value_explicit_dtype(self):
         # GH 18625
-        d = {'a': [[2], [3], [4]]}
-        result = Series(d, index=['a'], dtype="object")
-        expected = Series(d, index=['a'])
+        d = {"a": [[2], [3], [4]]}
+        result = Series(d, index=["a"], dtype="object")
+        expected = Series(d, index=["a"])
         tm.assert_series_equal(result, expected)
 
     def test_constructor_dict_order(self):