Right, I meant tuple, not list. a = ('A string') b = ('A List Member',)
print(a[0]) print(b[0]) The output for this is: A A List Member @mike -----Original Message----- From: Cameron Simpson <c...@cskk.id.au> Sent: Friday, July 12, 2019 7:59 PM To: Mike Barnett <mike_barn...@hotmail.com> Cc: Shall, Sydney <sydney.sh...@kcl.ac.uk>; tutor@python.org Subject: Re: [Tutor] Multiprocessing with many input input parameters On 11Jul2019 15:40, Mike Barnett <mike_barn...@hotmail.com> wrote: >If you're passing parameters as a list, then you need a "," at the end of the >items. Otherwise if you have something like a string as the only item, the >list will be the string. > >list_with_one_item = ['item one',] Actually, this isn't true. This is a one element list, no trailing coma required: [5] Mike has probably confused this with tuples. Because tuples are delineated with parentheses, there is ambiguity between a tuple's parentheses and normal "group these terms together" parentheses. So: x = 5 + 4 * (9 + 7) Here we just have parentheses causing the assignment "9 + 7" to occur before the multiplication by 4. And this is also legal: x = 5 + 4 * (9) where the parentheses don't add anything special in terma of behaviour. Here is a 2 element tuple: (9, 7) How does one write a one element tuple? Like this: (9,) Here the trailing comma is _required_ to syntacticly indicate that we intend a 1 element tuple instead of a plain "9 in parentheses") as in the earlier assignment statement. I'm not sure any of this is relevant to Sydney's question though. Cheers, Cameron Simpson <c...@cskk.id.au> _______________________________________________ Tutor maillist - Tutor@python.org To unsubscribe or change subscription options: https://mail.python.org/mailman/listinfo/tutor