Newbie regex question.

[Gustavo Cordova]

> 
> >>> import re
> >>> s= 'yadda widget1 widget2 yadda'
> >>> regex = re.compile('yadda (widget1) (widget2) yadda')
> >>> for match in regex.search(s).groups(): print match
> ... 
> widget1
> widget2
> 
> This works here.  Although I would strongly caution you to do:
> 
> re_match = regex.search(s)
> if re_match != None ......
> 
> just in case the regex fails.
> 

you can get away with only:

	re_match = regex.search(s)
	if re_match:
	    ....

The comparison vs. None is not necessary, if you only need
to know the boolean value of True|False, since None is False
(er, bool(None) == False). You know.

Also, comparing vs. None is better done with "var is None"
rather than "var == None".

Salutations.

-gustavo