if condition with list comprehension in python

i have a list contains some values.I want to check if any of the element is presented in another list with if statement. I have done something like if condition with list comprehension this but not working as expected. my code is

fileop=["create","open","append","delete","move","copy"]   
a=raw_input("enter a command\n")    
tokens=a.split(" ")

def data(i):    
     return i

if [data(i) in tokens for i in fileop] in tokens:    
     print "file operations"

     if "create" in tokens:    
        print "create"    
     elif "open" in tokens:    
        print "open"
     elif "delete" in tokens:    
         print "delete"

If my input is like delete file.how to get the correct keyword.