string.format() with {} inside string as string [duplicate]

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?

Morgan Thrapp · Accepted Answer · 2015-10-22 16:50:29Z

11

You just need one more pair of {}

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

answered Oct 22, 2015 at 16:50

Morgan Thrapp

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2 Comments

Jonathan Over a year ago

Superb, it looks ridiculous, but it works :)

Morgan Thrapp Over a year ago

@Jonathan Yeah, I wish it was \{.

hiro protagonist · Accepted Answer · 2015-10-22 16:50:39Z

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, 2015 at 16:50

hiro protagonist

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4 Comments

vaultah Over a year ago

I think they were revoked because you added the explanation.

hiro protagonist Over a year ago

@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).

vaultah Over a year ago

"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."

hiro protagonist Over a year ago

@vaultah thanks. interesting meta-post!

Eugene Soldatov · Accepted Answer · 2015-10-22 16:50:33Z

1

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

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

answered Oct 22, 2015 at 16:50

Eugene Soldatov

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Comments

ForceBru · Accepted Answer · 2015-10-22 16:50:57Z

-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, 2015 at 16:50

ForceBru

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