Regex to extract top level domain from email address

Question

From email address like

xxx@site.co.uk
xxx@site.uk
xxx@site.me.uk

I want to write a regex which should return \'uk\' is all the cases.

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Answer 1

You don't need regex. This would always give you 'uk' in your examples:

>>> url = 'foo@site.co.uk'
>>> url.split('.')[-1]
'uk'