Skip to content

redundant-log-base (FURB163)#

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 math.log calls with a redundant base.

Why is this bad?#

The default base of math.log is e, so specifying it explicitly is redundant.

Instead of passing 2 or 10 as the base, use math.log2 or math.log10 respectively, as these dedicated variants are typically more accurate than math.log.

Example#

import math

math.log(4, math.e)
math.log(4, 2)
math.log(4, 10)

Use instead:

import math

math.log(4)
math.log2(4)
math.log10(4)

References#