Is it possible to do lazy formatting of a python string?

Asked Sep 21 '20 at 18:50

Active Sep 21 '20 at 18:50

Viewed 23 times

Instead of creating a normal formatted string:

s = f"{1+1}" # Which would be "2"

I am receiving a variable with the string "{1+1}" and I need to calculate the expressions inside curly braces to end up with the literal value "2" on the python script.

Does Python have any built-in logic to perform this operation?

asked Sep 21 '20 at 18:50

MrNobody

Are you sure you're running Python 3? Works for me: ``` >>> s = f"{1+1}" >>> s >>> 2 ``` – BartoszKP Sep 21 '20 at 18:52
That's not what I mean. The first code works for me too. – MrNobody Sep 21 '20 at 18:55
1

Maybe related: [How to postpone/defer the evaluation of f-strings?](https://stackoverflow.com/questions/42497625/how-to-postpone-defer-the-evaluation-of-f-strings) – wim Sep 21 '20 at 18:57
I want to compute the string "2" from a literal string "{1+1}" which comes from a 3rd party of the python code, so i cant use the normal formatted string f"". – MrNobody Sep 21 '20 at 18:57
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The linked dupe or `eval` – BartoszKP Sep 21 '20 at 19:05
Thanks guys, I think your material will put me in the right direction to research this. – MrNobody Sep 21 '20 at 19:14

Is it possible to do lazy formatting of a python string?

0 Answers0