How to include the symbol "{" in a Python format string?

Question

How can I include { symbol in a string?

My string

str2="call_function(Macro, {0});\n \{ \t int n;\n".format("value")

I'm getting the error:

ValueError: unmatched '{' in format

I have escaped the { symbol and have tried without escaping too. I'm getting the same error in both cases.

root · Accepted Answer · 2013-03-22 09:28:27Z

16

Format strings contain “replacement fields” surrounded by curly braces {}. Anything that is not contained in braces is considered literal text, which is copied unchanged to the output. If you need to include a brace character in the literal text, it can be escaped by doubling: {{ and }}. ^docs

In [1]: '{{{0}'.format('foo')
Out[1]: '{foo'

edited Mar 22, 2013 at 9:28

answered Mar 22, 2013 at 9:03

root

81.1k25 gold badges111 silver badges120 bronze badges

Sign up to request clarification or add additional context in comments.

3 Comments

jedwards Over a year ago

If you need to include a brace character in the literal text, it can be escaped by doubling: {{ and }}.

Abhishek Over a year ago

Hey thanks for the useful tip. Works perfect. Any other escaping tricks that I need to know ?

root Over a year ago

@Abhishek -- Anything that is not contained in braces is considered literal text, which is copied unchanged to the output.. Anyway, I think it would be useful to chew yourself through the docs...

Andrii · Accepted Answer · 2022-03-28 09:08:17Z

0

also can do like this

'{%s' % 'foo'

answered Mar 28, 2022 at 9:08

Andrii

3541 gold badge3 silver badges14 bronze badges

Collectives™ on Stack Overflow

How to include the symbol "{" in a Python format string?

2 Answers 2

3 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

3 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related