PEP8 and fixed out_paths sort

Author: chrisgorgo

nipype/interfaces/io.py

@@ -831,6 +831,7 @@ def _run_interface(self, runtime):
             raise RuntimeError("Regular expression did not match any files!")
 
         #sort all keys acording to out_paths
+        self.result["out_paths"] = human_order_sorted(self.result["out_paths"])
         for key in self.result.keys():
             if key == "out_paths":
                 continue

nipype/utils/misc.py

@@ -17,7 +17,7 @@ def atoi(text):
         return int(text) if text.isdigit() else text
 
     def natural_keys(text):
-        if isinstance(text,tuple):
+        if isinstance(text, tuple):
             text = text[0]
         return [ atoi(c) for c in re.split('(\d+)', text) ]