TST: force reload (because doctest is importing the module)

Author: tacaswell

toolz/tests/test_compatibility.py

@@ -1,6 +1,10 @@
-import pytest
 
+import pytest
+import importlib
 
 def test_compat_warn():
     with pytest.warns(DeprecationWarning):
+        # something else is importing this,
         import toolz.compatibility
+        # reload to be sure we warn
+        importlib.reload(toolz.compatibility)