Python: Converting from Tuple to String?

Question

let's say that I have string:

    s = "Tuple: "

and Tuple (stored in a variable named tup):

    (2, a, 5)

I'm trying to get my string to contain the value "Tuple: (2, a, 5)". I noticed that you can't just concatenate them. Does anyone know the most straightforward way to do this? Thanks.

score 32 · Accepted Answer · answered Mar 01 '12 at 22:55

32

This also works:

>>> s = "Tuple: " + str(tup)
>>> s
"Tuple: (2, 'a', 5)"

answered Mar 01 '12 at 22:55

Bi Rico

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Yes, this is definitely the most straightforward way! – Jacob Griffin Mar 01 '12 at 23:10

score 11 · Answer 2 · answered Mar 01 '12 at 22:49

11

Try joining the tuple. We need to use map(str, tup) as some of your values are integers, and join only accepts strings.

s += "(" + ', '.join(map(str,tup)) + ")"

answered Mar 01 '12 at 22:49

Jack

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score 7 · Answer 3 · answered Mar 01 '12 at 22:48

7

>>> tup = (2, "a", 5)
>>> s = "Tuple: {}".format(tup)
>>> s
"Tuple: (2, 'a', 5)"

answered Mar 01 '12 at 22:48

Fred

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Why does the {} need to be in there? – Jacob Griffin Mar 01 '12 at 22:49
For instance, what if I just wanted it to be "Tuple (2, a, 5)" instead of "Tuple: (2, a, 5)" with a colon? – Jacob Griffin Mar 01 '12 at 22:50
2

@JacobGriffin, use a format string --> http://docs.python.org/library/stdtypes.html#str.format, try the code – Fred Mar 01 '12 at 22:52
1

The `{}` is a format specifier, look up how python string formatting works. It means to interpolate a passed argument to the string. Since there's only one of these, it specifically means the first argument. – Crast Mar 01 '12 at 23:05
Thanks, user :) Thank you Crast – Jacob Griffin Mar 01 '12 at 23:12

Python: Converting from Tuple to String?

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