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f-string-number-format (FURB116)#

Derived from the refurb linter.

Fix is sometimes available.

This rule is unstable and in preview. The --preview flag is required for use.

What it does#

Checks for uses of bin(...)[2:] (or hex, or oct) to convert an integer into a string.

Why is this bad?#

When converting an integer to a baseless binary, hexadecimal, or octal string, using f-strings is more concise and readable than using the bin, hex, or oct functions followed by a slice.



Use instead: