python - Function returns None -

after making error doing recursion none.

def getplayerinput():     = ["rock","paper","scissors"]     plin = raw_input("choose %s/%s/%s: " %(a[0], a[1], a[2]))     print plin,'-first print'     if plin not in a:         print "wrong input"         getplayerinput()     else:         print plin,'-second print'         return plin  in range(0,11):     print getplayerinput() 

if input first 'rock' 'cat' 'paper' 'none'.

you not return once input not valid. instead:

def getplayerinput():     = ["rock","paper","scissors"]     plin = raw_input("choose %s/%s/%s: " %(a[0], a[1], a[2]))     print plin,'-first print'     if plin not in a:         print "wrong input"         return getplayerinput() # <- added return     else:         print plin,'-second print'         return plin  in range(0,11):     print getplayerinput() 

otherwise recursion call return top level call, 1 swallows return value recursion call, since doesn't pass on via return.