Tim Chase wrote:
On 12/15/11 10:48, Roy Smith wrote:
I've got a list, ['a', 'b', 'c', 'd']. I want to generate the string, "a, b, c, and d" (I'll settle for no comma after 'c'). Is there some standard way to do this, handling all the special cases?

[] ==>  ''
['a'] ==>  'a'
['a', 'b'] ==>  'a and b'
['a', 'b', 'c', 'd'] ==>  'a, b, and c'

It seems like the kind of thing django.contrib.humanize would handle, but alas, it doesn't.

If you have a list, it's pretty easy as MRAB suggests. For arbitrary iterators, it's a bit more complex. Especially with the odd edge-case of 2 items where there's no comma before the conjunction (where >2 has the comma before the conjunction). If you were willing to forgo the Oxford comma, it would tidy up the code a bit. Sample code below

<snip>

Why go through all that instead of just converting the iterator into a list at the beginning of MRAB's solution and then running with it?

~Ethan~
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