assert-tuple (F631)

Derived from the Pyflakes linter.

What it does

Checks for assert statements that use non-empty tuples as test conditions.

Why is this bad?

Non-empty tuples are always True, so an assert statement with a non-empty tuple as its test condition will always pass. This is likely a mistake.

Example

assert (some_condition,)

Use instead:

assert some_condition

References

• Python documentation: The assert statement