py_list_api.py

#!/usr/bin/python

class Lists:
    def __init__(self):
        self.list = []
    def list_head(self):
        return self.list[0]
    def list_tail(self):
        return self.list[len(self.list) - 1]
    def list_add_tail(self, elem):
        self.list.append(elem)
    def list_add_head(self, elem):
        self.list.insert(0, elem)
    def list_remove(self, elem):
        self.list.remove(elem)
    def list_foreach(self, func):
        for item in self.list:
            func(item)
    def list_empty(self):
        if len(self.list) == 0:
            return True
        return False
    def list_find_elem(self, elem):
        for item in self.list:
            if item == elem:
                return True
        return False