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This article focuses on "what are the methods for creating a python generator". Interested friends may wish to take a look. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn what are the methods of creating a python generator.

1. Deductive method, just change the [] generated by the list to ()

There are many ways to create a generator.

In [26]: l = [num * 2 for num in range (5)] In [27]: LOut [27]: [0,2,4,6,8] In [28]: G = (num * 2 for num in range (5)) In [29]: GOut [29]:

2. Next () function

In [30]: next (G) Out [30]: 0 In [31]: next (G) Out [31]: 2 In [32]: next (G) Out [32]: 4 In [33]: next (G) Out [33]: 6 In [34]: next (G) Out [34]: 8 In [35]: next (G)-- -- StopIteration Traceback (most recent call last) in-> 1 next (G) StopIteration:

3. For loop and list, because G has iterated to the end of the ipython test, so you need to rebuild G, otherwise there will be no data.

In [38]: G = (num * 2 for num in range (5)) In [39]: for i in G:...: print (I)...: 02468 In [40]: list (G) Out [40]: [] In [41]: G = (num * 2 for num in range (5) In [42]: list (G) Out [42]: [0,2,4,6,8] so far I believe that you have a deeper understanding of "what are the methods of creating python generators?" you might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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