Merge pull request #843 from rodrigogansobarbieri/zed_fix_pep8

[stable/zed] Fix pep8 error in assert type comparison

charmhelpers/fetch/snap.py

@@ -52,7 +52,7 @@ def _snap_exec(commands):
     :param commands: List commands
     :return: Integer exit code
     """
-    assert type(commands) == list
+    assert type(commands) is list
 
     retry_count = 0
     return_code = None