updade from Atlas repo

19-coroutine/coroutil.py

@@ -4,8 +4,8 @@ from functools import wraps
 def coroutine(func):
     """Decorator: primes `func` by advancing to first `yield`"""
     @wraps(func)
-    def primer(*args,**kwargs):  # <1>
-        gen = func(*args,**kwargs)  # <2>
+    def primer(*args, **kwargs):  # <1>
+        gen = func(*args, **kwargs)  # <2>
         next(gen)  # <3>
         return gen  # <4>
     return primer