Remove deepcopy (#173)

honeybadger/utils.py

@@ -1,4 +1,3 @@
-import copy
 import json
 
 
@@ -11,13 +10,11 @@ def default(self, o):
 
 
 def filter_dict(data, filter_keys):
-    # filter_keys = set(data.keys())
     if type(data) != dict:
         return data
 
-    data_copy = copy.deepcopy(data)
-
-    for key, value in data_copy.items():
+    keys = list(data.keys())
+    for key in keys:
         # While tuples are considered valid dictionary keys,
         # they are not json serializable
         # so we remove them from the dictionary
@@ -28,7 +25,7 @@ def filter_dict(data, filter_keys):
         if key in filter_keys:
             data[key] = "[FILTERED]"
 
-        if type(value) == dict:
+        if type(data[key]) == dict:
             data[key] = filter_dict(data[key], filter_keys)
 
     return data