On 07/27/2014 11:49 AM, fl wrote:
Hi,
I get a post on tuple, see below please, on line. It seems that something is
missing. I want to learn tuple from this example as well.
Could you explain it to me (a tuple % another tuple)?
Thanks,
http://stackoverflow.com/questions/1708510/python-list-vs-tuple-when-to-use-each
In Python, when should you use lists and when tuples?
Sometimes you don't have a choice, for example if you have
"hello %s you are %s years old" % x
then x must be a tuple.
But if I am the one who designs the API and gets to choose the data types, then
what are the guidelines?
That's not tuple%tuple, but rather string%tuple. And string%tuple is
the older method of formatting an output string from a template and a
tuple of values. See
https://docs.python.org/2/library/stdtypes.html#string-formatting for
details.
However, if you are just learning Python, you should probably use the
*newer* formatting operations. See
https://docs.python.org/3.3/library/string.html#formatspec for details
of that.
Gary Herron
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