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Groups > comp.lang.python > #77174
| From | Peter Otten <__peter__@web.de> |
|---|---|
| Subject | Re: python string, best way to concat |
| Date | 2014-08-28 00:59 +0200 |
| Organization | None |
| References | <55bab2a0-e0bc-4398-90b4-c9937498f5d8@googlegroups.com> <53FE5EDD.9020502@mrabarnett.plus.com> <20140827174446.11a1cd01@bigbox.christie.dr> |
| Newsgroups | comp.lang.python |
| Message-ID | <mailman.13534.1409180390.18130.python-list@python.org> (permalink) |
Tim Chase wrote:
> On 2014-08-27 23:42, MRAB wrote:
>> How many parameters are there? len(self.param)
>>
>> Make that many placeholders and then join them together with commas:
>>
>> ', '.join(['?'] * len(self.param))
>
> I prefer the clarity of Peter Otten's suggestion of
>
> ', '.join('?' * len(self.param))
>
> over the mild obscurity of putting it in a list before multiplying.
As long as the OP doesn't try to transfer this to other paramstyles:
>>> ", ".join(["%s"]*3)
'%s, %s, %s'
>>> ", ".join("%s"*3) # OOPS
'%, s, %, s, %, s'
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python string, best way to concat dennisearlevans@gmail.com - 2014-08-27 13:31 -0700
Re: python string, best way to concat Dan Stromberg <drsalists@gmail.com> - 2014-08-27 15:30 -0700
Re: python string, best way to concat Peter Otten <__peter__@web.de> - 2014-08-28 00:34 +0200
Re: python string, best way to concat MRAB <python@mrabarnett.plus.com> - 2014-08-27 23:42 +0100
Re: python string, best way to concat Tim Chase <python.list@tim.thechases.com> - 2014-08-27 17:44 -0500
Re: python string, best way to concat Chris Angelico <rosuav@gmail.com> - 2014-08-28 08:55 +1000
Re: python string, best way to concat Peter Otten <__peter__@web.de> - 2014-08-28 00:59 +0200
Re: python string, best way to concat MRAB <python@mrabarnett.plus.com> - 2014-08-28 08:12 +0100
Re: python string, best way to concat peter <peter.mosley@talk21.com> - 2014-08-28 01:30 -0700
Re: python string, best way to concat Marko Rauhamaa <marko@pacujo.net> - 2014-08-28 11:34 +0300
Re: python string, best way to concat Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-28 09:43 +0100
Re: python string, best way to concat Chris Angelico <rosuav@gmail.com> - 2014-08-28 18:58 +1000
Re: python string, best way to concat Roy Smith <roy@panix.com> - 2014-08-28 08:08 -0400
Re: python string, best way to concat Mihamina Rakotomandimby <mihamina.rakotomandimby@rktmb.org> - 2014-08-28 15:19 +0300
Re: python string, best way to concat Mark Lawrence <breamoreboy@yahoo.co.uk> - 2014-08-28 15:48 +0100
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