lib.util: Add is_subclass()

A more sensible version of the issubclass() builtin.
noxrepo · May 19, 2013 · 569e90a · 569e90a
1 parent bb01405
commit 569e90a
Showing 1 changed file with 10 additions and 0 deletions.
diff --git a/pox/lib/util.py b/pox/lib/util.py
@@ -364,6 +364,16 @@ def tryConnect ():
 makePinger = make_pinger # Deprecated
 
 
+def is_subclass (cls, classinfo):
+  """
+  A more sensible version of the issubclass builtin
+  """
+  try:
+    return issubclass(cls, classinfo)
+  except TypeError:
+    return False
+
+
 def str_to_bool (s):
   """
   Given a string, parses out whether it is meant to be True or not