Fix bug in single param **arg

test/simple_source/def/02_def.py

@@ -13,3 +13,9 @@ def x3(a, b, c=5):
 
 def x4(a, b=5, **c):
     pass
+
+# Had a bug in 2.x where
+# we weren't picking up **kwds when
+# it was the sole parameter
+def funcattrs(**kwds):
+    return

uncompyle6/semantics/make_function.py

@@ -392,8 +392,7 @@ def make_function2(self, node, is_lambda, nested=1, codeNode=None):
     if code_has_star_star_arg(code):
         if argc > 0:
             self.write(', ')
-        if argc + kw_pairs > 0:
+        self.write('**%s' % code.co_varnames[argc + kw_pairs])
-            self.write('**%s' % code.co_varnames[argc + kw_pairs])
 
     if is_lambda:
         self.write(": ")