--- pyVows-2.1.0/pyvows/runner/utils.py.orig	2019-02-21 10:04:05.498271976 +0700
+++ pyVows-2.1.0/pyvows/runner/utils.py	2019-02-21 10:04:56.462676610 +0700
@@ -34,10 +34,10 @@
     # check for decorated topic function
     if hasattr(topic_function, '_original'):
         # _wrapper_type is 'async_topic' or 'capture_error'
-        async = (getattr(topic_function, '_wrapper_type', None) == 'async_topic')
+        async_ = (getattr(topic_function, '_wrapper_type', None) == 'async_topic')
         topic_function = topic_function._original
     else:
-        async = False
+        async_ = False
  
     code = get_code_for(topic_function)
  
@@ -48,7 +48,7 @@
     expected_args = code.co_argcount - 1
  
     # taking the callback argument into consideration
-    if async:
+    if async_:
         expected_args -= 1
  
     # prepare to create `topics` list
--- pyVows-2.1.0/tests/async_vows.py.orig	2019-02-21 10:07:12.347754104 +0700
+++ pyVows-2.1.0/tests/async_vows.py	2019-02-21 10:07:25.163855622 +0700
@@ -15,13 +15,13 @@
 #-------------------------------------------------------------------------------------------------
 
 def asyncFunc(pool, callback):
-    def async():
+    def async_():
         time.sleep(0.1)
         return 10
 
     def get_value(value):
         callback(value, 20, kwarg=30, kw2=40)
-    pool.apply_async(async, callback=get_value)
+    pool.apply_async(async_, callback=get_value)
 
 #-------------------------------------------------------------------------------------------------