Python conditional statements in f-string with format specifiers

Question

In this code snippet:

b = False
print(f'{a if b else ""}')

I would like to use format specifier for a , eg a:.2f . None of these work with Python 3.10:

print(f'{a:.2f if b else ""}')
print(f'{(a:.2f) if b else ""}')
print(f'{{a:.2f} if b else ""}')

What is the solution?

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I would like to keep the conditional inside f-string, since there will be a few of them in different places in a multiline string.

Answer 1

如果您使用其中两个，则可以将条件保留在f-string中，第二个用于a:.2f

print(f'{f"{a:.2f}" if b else ""}')