commit 24e77f92658c7d258e2a3cf9868f3f4658932b40
author Eric V. Smith <ericvsmith@users.noreply.github.com> Wed Dec 06 14:00:34 2017 -0500
committer GitHub <noreply@github.com> Wed Dec 06 14:00:34 2017 -0500
tree 2233e838f20a9a78a1ae0432e140b4af924accdd
parent 9d25bd11ca121cfc76e5bf31c265e72956208598

Use raw strings for regex to avoid invalid escape sequences. (GH-4741)

Lib/test/test_dataclasses.py

diff --git a/Lib/test/test_dataclasses.py b/Lib/test/test_dataclasses.py
index caea98a..9d08a2d 100755
--- a/Lib/test/test_dataclasses.py
+++ b/Lib/test/test_dataclasses.py
@@ -1831,7 +1831,7 @@
         #  if we're also replacing one that does exist.  Test this
         #  here, because setting attributes on frozen instances is
         #  handled slightly differently from non-frozen ones.
-        with self.assertRaisesRegex(TypeError, "__init__\(\) got an unexpected "
+        with self.assertRaisesRegex(TypeError, r"__init__\(\) got an unexpected "
                                              "keyword argument 'a'"):
             c1 = replace(c, x=20, a=5)
 
@@ -1842,7 +1842,7 @@
             y: int
 
         c = C(1, 2)
-        with self.assertRaisesRegex(TypeError, "__init__\(\) got an unexpected "
+        with self.assertRaisesRegex(TypeError, r"__init__\(\) got an unexpected "
                                     "keyword argument 'z'"):
             c1 = replace(c, z=3)