1.1 --- a/translator.py	Mon Apr 03 23:27:35 2017 +0200
     1.2 +++ b/translator.py	Tue Apr 04 00:27:38 2017 +0200
     1.3 @@ -1282,7 +1282,7 @@
     1.4  
     1.5          # Defaults are added to the frame where arguments are missing.
     1.6  
     1.7 -        if parameters and function_defaults:
     1.8 +        if parameters and function_defaults is not None:
     1.9  
    1.10              # Visit each default and set any missing arguments. Where keyword
    1.11              # arguments have been used, the defaults must be inspected and, if