python string, best way to concat

Tim Chase python.list at tim.thechases.com
Wed Aug 27 18:44:46 EDT 2014


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.

-tkc







More information about the Python-list mailing list