Message 360189 - Python tracker

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Author	serhiy.storchaka
Recipients	apalala, ezio.melotti, mrabarnett, rhettinger, serhiy.storchaka, terry.reedy
Date	2020-01-17.13:52:55
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1579269175.82.0.632596010838.issue39165@roundup.psfhosted.org>
In-reply-to

Content
Most of examples do not test whether findall() returns an empty list. So there is no significant difference with using search() -- just different type of exception if fails (IndexError, TypeError or AttributeError). Since most examples do not handle errors, this will only affect a traceback if you use the script improperly. If it is important to you, you can write (re.search(...) or [])[0] and get the same IndexError.

Most of examples do not test whether findall() returns an empty list. So there is no significant difference with using search() -- just different type of exception if fails (IndexError, TypeError or AttributeError). Since most examples do not handle errors, this will only affect a traceback if you use the script improperly.

If it is important to you, you can write (re.search(...) or [])[0] and get the same IndexError.

History
Date	User	Action	Args
2020-01-17 13:52:55	serhiy.storchaka	set	recipients: + serhiy.storchaka, rhettinger, terry.reedy, ezio.melotti, mrabarnett, apalala
2020-01-17 13:52:55	serhiy.storchaka	set	messageid: <1579269175.82.0.632596010838.issue39165@roundup.psfhosted.org>
2020-01-17 13:52:55	serhiy.storchaka	link	issue39165 messages
2020-01-17 13:52:55	serhiy.storchaka	create