Python regular expression string groupings

Question

I'm trying to match either @ or the string at, like for name@email and nameatemail. I imagine it's something like

regex = '@|at'

or

regex = '@|(at)'

but I just can't find the right syntax.

Ummm... you're a bit screwed if someone's called Nathan or Natalie aren't you? :) — Jon Clements
– Jon Clements, Commented Jan 15, 2013 at 7:29
@Jon Clements made a good point . for that case, I suggest just keep it for further identification(may be you have a name dictionary in hand) or maintain a list of popular mail service provider , such gmail.com , yahoo.com , then , if you found a string ends with "Nathanatgmail.com", then just translate"atgmail.com" into "@gmail.com" and keep the ”Nathan“ unchanged . — Shawn Zhang
– Shawn Zhang, Commented Jan 15, 2013 at 8:27
So in essence you're trying to deobfuscate email addresses? Why? Any plans for spamming? — Tim Pietzcker
– Tim Pietzcker, Commented Jan 15, 2013 at 8:30

Unknown · Accepted Answer · 2013-01-15 07:27:50Z

2

I suggest you use Kodos to test your regular expressions (it also provides you with Python code for your regex). And this for regular expression info.

answered Jan 15, 2013 at 7:27

Unknown

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Ria · Accepted Answer · 2013-01-15 08:27:34Z

0

For your issue both regex works correctly:

match = re.search("@|at", subject)
if match:
    result = match.group()

answered Jan 15, 2013 at 8:27

Ria

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1 Comment

bubbles Over a year ago

I didn't realize that it would look at the entire "at", not just the 'a'. You're right! Thanks!

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