Issue 1491485: str.startswith/endswith could take a tuple? (original) (raw)

Created on 2006-05-19 10:24 by tlynn, last changed 2022-04-11 14:56 by admin. This issue is now closed.

Messages (6)
msg54805 - (view)	Author: Tom Lynn (tlynn)	Date: 2006-05-19 10:24
In the same way that exceptions can have a tuple of types specified and isinstance can take a tuple of types, str.startswith and endswith could take a tuple of possible prefixes/suffixes. One use-case:: if filename.endswith(('jpg', 'gif', 'png')): # ... vs: if (filename.endswith('jpg') or filename.endswith ('gif') or filename.endswith('png')): #... Obviously it's not a huge improvement in clarity, but it does seem to be an improvement to me.
msg54806 - (view)	Author: Raymond Hettinger (rhettinger) *	Date: 2006-05-19 20:58
Logged In: YES user_id=80475 FWIW, in Py2.5, this would be written: if any(filename.startswith(s) for s in suffixes): . . .
msg54807 - (view)	Author: Raymond Hettinger (rhettinger) *	Date: 2006-06-05 16:33
Logged In: YES user_id=80475 The previous comment was just information. I am +1 on the proposal because the use case is so common and the proposed form is concise, clear, and natural.
msg54808 - (view)	Author: Raymond Hettinger (rhettinger) *	Date: 2006-06-06 00:30
Logged In: YES user_id=80475 Georg, would you like to implement this one?
msg54809 - (view)	Author: Georg Brandl (georg.brandl) *	Date: 2006-06-07 21:11
Logged In: YES user_id=849994 I will, tomorrow.
msg54810 - (view)	Author: Georg Brandl (georg.brandl) *	Date: 2006-06-09 20:23
Logged In: YES user_id=849994 Committed implementation in rev. 46795.