Fix test

Makefile

@@ -4,7 +4,11 @@ test:
 	cargo test
 	cargo clippy
 	tox
-	for example in examples/*; do tox -e py --workdir $$example; done
+	for example in examples/*; do tox -e py -c $$example/tox.ini; done
+
+test_py3:
+	tox -e py3
+	for example in examples/*; do tox -e py3 -c $$example/tox.ini; done
 
 publish:
 	cargo test

examples/rustapi_module/tests/test_datetime.py

@@ -296,4 +296,4 @@ def test_tz_class_introspection():
     tzi = rdt.TzClass()
 
     assert tzi.__class__ == rdt.TzClass
-    assert repr(tzi).startswith("<rustapi_module.datetime.TzClass object at")
+    assert repr(tzi).startswith("<TzClass object at")

tests/test_module.rs

@@ -29,7 +29,7 @@ fn double(x: usize) -> usize {
 #[pymodule]
 #[cfg(Py_3)]
 fn module_with_functions(py: Python, m: &PyModule) -> PyResult<()> {
-    use pyo3::{wrap_pyfunction, wrap_pymodule};
+    use pyo3::wrap_pyfunction;
 
     #[pyfn(m, "sum_as_string")]
     fn sum_as_string_py(_py: Python, a: i64, b: i64) -> PyResult<String> {