Pythonenumerate()Function ❮ Built-in Functions ExampleGet your own Python Server Convert a tuple into an enumerate object: x = ('apple','banana','cherry') y =enumerate(x) Try it Yourself » Definition and Usage Theenumerate()function takes a collection (e.g. a tuple) and returns it...
Explanation –In the above example, the enumerate() function is used to iterate over the list of the persons and return a tuple containing the index and value of each element. The dictionary comprehension then creates a new dictionary where the keys are the indices and the values are the cor...
The enumerate() function returns an enumerate object. iterable must be a sequence, an iterator, or some other object which supports iteration. Note: The __next__() method of the iterator returned by enumerate() returns a tuple containing a count (from start which defaults to 0) and the v...
start(optional) -enumerate()starts counting from this number. Ifstartis omitted,0is taken asstart. enumerate() Return Value Theenumerate()functionadds a counter to an iterable and returns it. The returned object is an enumerate object. An enumerate object is an iterator that produces a sequence...
The enumerate() function takes an iterable and returns an enumerate object (an iterator) that produces a tuple of the form (index, value), where inde…
Python’s enumerate() function helps you keep count of each object of a list, tuple, set, or any data structure that we can iterate (known as iterable). For example, suppose we have a list of planets (Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune). If we consider th...
13. Enumerate Enumerate is a built-in function of Python. Its usefulness can not be summarized in a single line. Yet most of the newcomers and even some advanced programmers are unaware of it. It allows us to loop over something and have an automatic counter. Here is an example:...
For example: >>> for i, season in enumerate([’Spring’, ’Summer’, ’Fall’, ’Winter’]): ... print i, season 0 Spring 1 Summer 2 Fall 3 Winter 我试了一下,如果那句循环改成 for season in [’Spring’, ’Summer’, ’Fall’, ’Winter’]: ...
enumerate():获取枚举对象 zip():函数用于将可迭代的对象作为参数, 将对象中对应的元素打包成一个元组, 然后返回由这些元组组成的列表. 如果各个迭代器的元素个数不一致, 则返回列表长度与最短的对象相同 lst = "你好啊" it = reversed(lst) # 不会改变原列表. 返回一个迭代器, 设计上的一个规则 print(li...
Applyenumerate()in a fewreal-world examples Get values fromenumerate()usingargument unpacking Implement your ownequivalent functiontoenumerate() You also sawenumerate()used in some real-world code, including within theCPythoncode repository. You now have the superpower of simplifying your loops and ...