bpo-41043: Escape literal part of the path for glob(). (GH-20994)

diff --git a/Lib/test/test_crashers.py b/Lib/test/test_crashers.py
index 58dfd00..31b7120 100644
--- a/Lib/test/test_crashers.py
+++ b/Lib/test/test_crashers.py
@@ -11,7 +11,7 @@
 from test.support.script_helper import assert_python_failure
 
 CRASHER_DIR = os.path.join(os.path.dirname(__file__), "crashers")
-CRASHER_FILES = os.path.join(CRASHER_DIR, "*.py")
+CRASHER_FILES = os.path.join(glob.escape(CRASHER_DIR), "*.py")
 
 infinite_loops = ["infinite_loop_re.py", "nasty_eq_vs_dict.py"]