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What are iterable objects in python

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Release: 2019-06-20 09:39:44
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What are the iterable objects in Python? Iterable objects in Python include: lists, tuples, dictionaries, and strings; often used in combination with for loops;

What are iterable objects in python

Determine whether an object is Iterable object:

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from collections import Iterable

 

isinstance(list(range(100)), Iterable)

isinstance('Say YOLO Again.')

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List:

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L = list(range(100))for i in L:

    print(i)

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Tuple:

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T = tuple(range(100))for i in T:

    print(i)

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Dictionary:

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dic = {'name': 'chen', 'age': 25, 'loc': 'Tianjin'}

# 以列表的形式返回

keylist(dic.keys())

# 以列表的形式返回

valuelist(dic.values())

# 循环key

for key in dic:

    print(key)   

# 循环value

for value in dic.values():

    print(value)   

# 循环key, value

for key, value in dic.items():

    print(key, value)

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String:

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S = 'Say YOLO Again!'for s in S:   

print(s)

返回'索引-元素'对:

for i, value in enumerate('Say YOLO Again.'):   

print(i, value)

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