Remove all small words from string except few

Asked Jan 24 '20 at 08:58

Active Jan 24 '20 at 08:58

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I have a text string like following. I want to remove all small words from text till the length of 2 alphabets except a few words

st = "PD never failed to be, it is very good"

To remove small words till the length of 2 I am using below regex, which is working fine

re.sub(r'\b\w{1,2}\b',' ', str(st))

But I don't want PD to be removed, as below list words I don't want to delete.

list = ['PD', 'CD', 'LD']

How can we do this with regex

desire result :- "PD never failed  ,     very good"

asked Jan 24 '20 at 08:58

Manu Sharma

3

As usual, with a lookahead, e.g. `\b(?!(?:PD|CD|LD)\b)\w{1,2}\b`. If they all are two-letter words, you may even use a lookbehind. – Wiktor Stribiżew Jan 24 '20 at 09:00
Please post this as an answer, Thanks – Manu Sharma Jan 27 '20 at 08:16

0 Answers0