从字符串中删除小写子字符串的快速方法? [英] fast way to remove lowercase substrings from string?

问题描述

在Python中(纯文本或使用numpy)从字符串s中删除所有小写子字符串的有效方法是什么?

What's an efficient way in Python (plain or using numpy) to remove all lowercase substring from a string s?

s = "FOObarFOOObBAR"
remove_lower(s) => "FOOFOOBAR"

推荐答案

我将使用str.translate.如果您为转换表传递None，则仅执行删除步骤.在这种情况下，我将ascii_lowercase作为要删除的字母传递.

I'd use str.translate. Only the delete step is performed if you pass None for the translation table. In this case, I pass the ascii_lowercase as the letters to be deleted.

>>> import string
>>> s.translate(None,string.ascii_lowercase)
'FOOFOOOBAR'

我怀疑您会找到一种更快的方法，但是如果有人有动力，总是有timeit来比较不同的选择:).

I doubt you'll find a faster way, but there's always timeit to compare different options if someone is motivated :).

这篇关于从字符串中删除小写子字符串的快速方法?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！