UP036 (outdated-version-block) is off-by-one for the target version

[oprypin]

If my target-version is py38, I expect the condition if sys.version_info >= (3, 8): to be dropped but it isn't.
It gets dropped for py37, though.

This is a regression introduced in #7284 while fixing #7258.

A minimal code snippet that reproduces the bug.

import sys

if sys.version_info >= (3, 8):
    print('oh no')

expected:

print('oh no')

actual: (no lint and the file doesn't get fixed)

The command you invoked (e.g., ruff /path/to/file.py --fix), ideally including the --isolated flag.

ruff check test.py

The current Ruff settings (any relevant sections from your pyproject.toml).

[tool.ruff]
target-version = "py38"
select = ["UP036"]

The current Ruff version (ruff --version)

ruff 0.0.292

[tdulcet]

Another related issue here is that indexing/slicing does not work:

import sys

if sys.version_info[:2] < (3, 7):
    print('oh no')

ruff --target-version py37 --select UP036 --isolated test.py

This if block should be removed, but nothing changes. Even the Ruff documentation suggests using this slice syntax here, so it should work as expected.

[zanieb]

Thanks for the reports!