string.format() with {} inside string as string

Question

Ponder that you have a string which looks like the following 'This string is {{}}' and you would like to transform it into the following 'This string is {wonderful}'

if you do 'This string is {{}}'.format('wonderful') it won't work. What's the best way to achieve this?

score 10 · Accepted Answer · answered Oct 22 '15 at 16:50

10

You just need one more pair of {}

'This string is {{{}}}'.format('wonderful')

answered Oct 22 '15 at 16:50

Morgan Thrapp

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Superb, it looks ridiculous, but it works :) – Jonathan Oct 22 '15 at 16:55
@Jonathan Yeah, I wish it was `\{`. – Morgan Thrapp Oct 22 '15 at 16:55

score 3 · Answer 2 · answered Oct 22 '15 at 16:50

3

you need triple brackets: two for the literal { and }and the pair in the middle for the format function.

print('This string is {{{}}}'.format('wonderful'))

answered Oct 22 '15 at 16:50

hiro protagonist

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I think they were revoked because you added the explanation. – vaultah Oct 22 '15 at 16:54
@vaultah that's kind of the MO for questions a simple as that. everyone posts code as fast as possible and then adds an explanation later. ninja-editing... i did so as well... (and had to answer a captcha). – hiro protagonist Oct 22 '15 at 16:56
["You are welcome to post a first version of your answer as fast as you can, provided it is already a correct and useful answer meeting our minimal standards."](http://meta.stackoverflow.com/a/303449/2301450) – vaultah Oct 22 '15 at 16:58
@vaultah thanks. interesting meta-post! – hiro protagonist Oct 22 '15 at 16:59

score 1 · Answer 3 · answered Oct 22 '15 at 16:50

1

Two brackets to get {} in line (escaping), and third as placeholder:

'This string is {{{}}}'.format('wonderful')

answered Oct 22 '15 at 16:50

Eugene Soldatov

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score -2 · Answer 4 · answered Oct 22 '15 at 16:50

-2

You can do this: print "{{f}}".format(f='wonderful').

You can do this as well: "Hello, {name}!".format(name='John'). This will substitute all {name}s with John.

answered Oct 22 '15 at 16:50

ForceBru

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string.format() with {} inside string as string

4 Answers4