带有多个'if'的python列表理解 [英] python list comprehension with multiple 'if's

问题描述

我们都知道python的

We all know python's

[f(x) for x in y if g(x)]

语法.

但是 列表理解的 AST 表示可以容纳多个'if '表达式:

However the AST representation of list comprehension has room for more than one 'if' expression:

comprehension = (expr target, expr iter, expr* ifs)

有人可以给我一个python代码示例，该示例会产生带有多个'if'表达式的AST吗?

Can somebody give me an example of python code that would produce an AST with more than one 'if' expression?

推荐答案

只需将它们彼此堆叠:

[i for i in range(100) if i > 10 if i < 50]

产生11到49之间的整数.

Produces the integers between 11 and 49, inclusive.

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