Python> Comprehension / Comprehension> List comprehension

@ Introducing Python: Modern Computing in Simple Packages by Bill Lubanovic (No. 2285 / 12833)

Comprehension make it possible for you to combine loops and conditional tests with a less verbose syntax.

The simplest form

@ Introducing Python: Modern Computing in Simple Packages by Bill Lubanovic (No. 2319 / 12833)

The simplest form of list comprehension is:

[ expression for item in iterable ]

I implemented it with reference to the example. http://ideone.com/9l9LpH

number_list = [ 2 * number - 1 for number in range(1,5)]
print(number_list)

result


[1, 3, 5, 7]

include a conditional expression

@ Introducing Python: Modern Computing in Simple Packages by Bill Lubanovic (No. 2319 / 12833)

[ expression for item in iterable if condition ]

http://ideone.com/A1AkaE

number_list = [ number for number in range(1,9) if number % 2 == 1]
print(number_list)

result


[1, 3, 5, 7]

Japanese translation

It sounds like a comprehension.

http://qiita.com/7of9/items/d03d099b400d9a067086#comment-a3d81d6be1e59c4a0a35 http://qiita.com/taiga_6404/items/20a3d9a7edf1f7bd6a2c http://qiita.com/supersaiakujin/items/0776d3252c5000ca146e

You can also follow the for statement with the for statement.

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