爬蟲中經常遇到這樣的程式碼：

ids=['id1','id2','id3']#爬蟲快取id資料
contents=['content1','content2','content3']#爬蟲快取內容資料
for id,conten in zip(ids,contents):
	info={    #將id，content資訊存入info字典中
        'content':content,
        'id':id
	}
	info_lists.append(info)

等效於：

for id,conten in [('id1','content1'),('id2'
 
,'content2'),('id3','content3')]:
	info={
        'content':content,
        'id':id
	}
	info_lists.append(info)

>>> a = [1,2,3]
>>> b = [4,5,6]
>>> c = [4,5,6,7,8]
>>> zipped = zip(a,b)     # 返回一個物件
>>> zipped
<zip object at 0x103abc288>
>>> list(zipped)  # list() 轉換為列表
[(1, 4), (2, 5), (3, 6)]
>>> list(zip(a,c))              # 元素個數與最短的列表一致
[(1, 4), (2, 5), (3, 6)]