Fix a test to not use an assertion for something that could be
legitimately false.
diff --git a/Lib/test/test_imp.py b/Lib/test/test_imp.py
index 2b2bbd3..96771d8 100644
--- a/Lib/test/test_imp.py
+++ b/Lib/test/test_imp.py
@@ -241,8 +241,9 @@
         # Issue #15902
         name = '_heapq'
         found = imp.find_module(name)
-        assert found[2][2] == imp.C_EXTENSION
         found[0].close()
+        if found[2][2] != imp.C_EXTENSION:
+            return
         imp.load_module(name, None, *found[1:])