Warren Stringer said unto the world upon 05/30/2007 05:31 PM: > Hmmm, this is for neither programmer nor computer; this is for a user. If I > wanted to write code for the benefit for the computer, I'd still be flipping > switches on a PDP-8. ;-) > > This is inconsistent: > > why does c[:][0]() work but c[:]() does not?
c[:][0]() says take a copy of the list c, find its first element, and call it. Since c is a list of functions, that calls a function. c[:]() says take a copy of the list c and call it. Since lists are not callable, that doesn't work. > Why does c[0]() has exactly the same results as c[:][0]() ? Because c[0] is equal to c[:][0]. > Moreover, c[:][0]() implies that a slice was invoked Yes, but the complete slice. > So, tell me, for scheduling a lot of asynchronous events, what would be more > readable than this: > > bidders = [local_members] + [callin_members] > bidders[:].sign_in(roster) > ... for bidder in [local_members] + [callin_members]: bidder.sign_in(roster) Best, Brian vdB > \~/ > >> -----Original Message----- >> From: [EMAIL PROTECTED] [mailto:python-list- >> [EMAIL PROTECTED] On Behalf Of Carsten Haese >> Sent: Wednesday, May 30, 2007 12:55 PM >> To: python-list@python.org >> Subject: Re: c[:]() >> >> On Wed, 2007-05-30 at 11:48 -0700, Warren Stringer wrote: >>> I want to call every object in a tupple, like so: >>> >>> #------------------------------------------ >>> def a: print 'a' >>> def b: print 'b' >>> c = (a,b) >>> >>>>>> c[:]() # i wanna >>> [...] >>> Is there something obvious that I'm missing? >> Yes: Python is not Perl. >> >> Python is based on the principle that programmers don't write computer >> code for the benefit of the computer, but for the benefit of any >> programmer who has to read their code in the future. Terseness is not a >> virtue. To call every function in a tuple, do the obvious: >> >> for func in funcs: func() >> >> HTH, >> >> -- >> Carsten Haese >> http://informixdb.sourceforge.net >> >> >> -- >> http://mail.python.org/mailman/listinfo/python-list > > -- http://mail.python.org/mailman/listinfo/python-list