How Python removes non-alphabetic characters from a list

This article mainly introduces Python how to delete non-alphabetic characters in the list, which has a certain reference value, interested friends can refer to, I hope you can learn a lot after reading this article, let the editor take you to understand it.

Description

1. Get the string data that you want to extract alphabetic characters.

2. You can replace anything in the string that matches the regular expression pattern.

3. Square brackets define a set of characters to be captured, and the preceding ^ character negates everything in the pattern.

Example

Import re-str = "123456790abcdefABCDEFF imports str% ^ & * () _ +?,. /" result = re.sub (r'[^ a-zA-Z]', ", str)

Print the result

If it is not the characters a to z (uppercase and lowercase), it results in a match. The match is replaced with a blank character. You can put anything you want in the replacement parameter.

You can use Regex almost any time you manipulate a string.

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