gistfile1.py

 astlist = []
    
    def composeASTWithList(self,util):
        tokenPosition = 0

        if tokenPosition == len(self.listOfTokens)-1 :
            return None
        else:
            util.append(self.listOfTokens[tokenPosition+1])
            util.append(self.listOfTokens[tokenPosition])
            util.append([])
            self.astlist.append(self.composeASTWithList(util[2]))