Support random changes in tox

Author: zeburek

src/apitist/random.py

@@ -110,7 +110,7 @@ def add_types(
     def add_predefined(self, **kwargs):
         try:
             import faker
-        except ImportError:
+        except ModuleNotFoundError:
             raise ImportError(
                 "Please pre-install Faker:"
                 "\n\tpip install -e 'apitist[random]'"

tox.ini

@@ -15,4 +15,5 @@ commands =
     py.test {posargs}
 extras =
     all
+    random
     testing