Allow Fire to serialize empty dictionaries (google#5)

ubershmekel · dbieber · commit 59d9095efbba · 2017-03-06T07:29:49.000-08:00
* Fix for empty dictionary print outs This should handle google#4 * pep8 prefers `if not seq` over `len == 0` * Use single quotes
diff --git a/fire/core.py b/fire/core.py
@@ -193,6 +193,9 @@ def _DictAsString(result, verbose=False):
   Returns:
     A string representing the dict
   """
+  if not result:
+    return '{}'
+  
   longest_key = max(
       len(str(key)) for key in result.keys()
       if _ComponentVisible(key, verbose)
