diff --git a/pythonforandroid/recipes/android/src/android/runnable.py b/pythonforandroid/recipes/android/src/android/runnable.py
index 9ed419eeaf..74268c803f 100644
--- a/pythonforandroid/recipes/android/src/android/runnable.py
+++ b/pythonforandroid/recipes/android/src/android/runnable.py
@@ -1,7 +1,6 @@
 '''
 Runnable
 ========
-
 '''
 
 from jnius import PythonJavaClass, java_method, autoclass
@@ -14,6 +13,7 @@
 # is limited, so by caching them we avoid running out.
 __functionstable__ = {}
 
+
 class Runnable(PythonJavaClass):
     '''Wrapper around Java Runnable class. This class can be used to schedule a
     call of a Python function into the PythonActivity thread.
@@ -30,7 +30,6 @@ def __call__(self, *args, **kwargs):
         self.args = args
         self.kwargs = kwargs
         Runnable.__runnables__.append(self)
-        
         _PythonActivity.mActivity.runOnUiThread(self)
 
     @java_method('()V')
@@ -42,24 +41,18 @@ def run(self):
             traceback.print_exc()
 
         Runnable.__runnables__.remove(self)
-        
-        
 
 
 def run_on_ui_thread(f):
     '''Decorator to create automatically a :class:`Runnable` object with the
     function. The function will be delayed and call into the Activity thread.
     '''
-    
     if f not in __functionstable__:
-        
-        rfunction = Runnable(f) #store the runnable function
-        
-        __functionstable__[f] = {"rfunction":rfunction}
-        
+        rfunction = Runnable(f)  # store the runnable function
+        __functionstable__[f] = {"rfunction": rfunction}
     rfunction = __functionstable__[f]["rfunction"]
-    
+
     def f2(*args, **kwargs):
         rfunction(*args, **kwargs)
-            
+
     return f2