fixed #92

TODO

@@ -17,6 +17,8 @@ Unknown milestone
 - bash autocompletion
 - clarify ImportError in load_model
 - implement debug flag to jump into the error
+- sqlautocode support
+- serializers (json, yaml, etc)
 
 
 0.6.1

migrate/versioning/shell.py

@@ -64,7 +64,10 @@ def main(argv=None, **kwargs):
     :param disable_logging: Let migrate configure logging
     :type disable_logging: bool
     """
-    argv = argv or list(sys.argv[1:])
+    if argv is not None:
+        argv = argv
+    else:
+        argv = list(sys.argv[1:])
     commands = list(api.__all__)
     commands.sort()