Eric V. Smith <[email protected]> added the comment:
> In you example the format spec is applied to both the value and the literal
> representation of the expression. Is it an error? I do not think this is an
> expected behavior.
No, you're misreading it. I admit that my example wasn't great. Try this one:
>>> for n in nums:
... print(f'*{n=:+<30}*')
...
*n=0.3333333333333333++++++++++++*
*n=1.0+++++++++++++++++++++++++++*
*n=10.0++++++++++++++++++++++++++*
*n=3.141592653589793+++++++++++++*
> If you want to apply it to both the literal expression and its value you can
> use the nested f-string: f"*{f'{n=}':30}*".
Correct. There's a similar discussion in issue36774.
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<https://bugs.python.org/issue36817>
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