Patch bad attribute
Fix by rick <rick@gnous.eu>

--- a/tests/test_extra.py
+++ b/tests/test_extra.py
@@ -113,7 +113,7 @@ def test_thrown_exceptions_have_stacktrace():
     with raises(AssertionError) as assert_exc:
         p3.get()
 
-    assert assert_exc.traceback[-1].path.strpath == __file__
+    assert str(assert_exc.traceback[-1].path) == __file__
 
 
 def test_thrown_exceptions_preserve_stacktrace():
@@ -127,7 +127,7 @@ def test_thrown_exceptions_preserve_stacktrace():
     with raises(AssertionError) as assert_exc:
         p3.get()
 
-    assert assert_exc.traceback[-1].path.strpath == __file__
+    assert str(assert_exc.traceback[-1].path) == __file__
 
 
 # WAIT