Python code that removes contiguous spaces into one

I don't always understand so make a note

import re

text = "I want to erase these ← half-width spaces and ← full-width spaces, but leave one."
text = re.sub('[ 　]+', ' ', text)

print(text)
'I want to erase these ← half-width spaces and ← full-width spaces, but leave one.'

If you specify the space re.sub ('[(half-width space) (full-width space)] +',' (half-width space)', text) It's like that.

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