# fixhunt regression fixture: ruff UP009, ruff 0.17.1
# the fix labelled safe changes the program's output on this program
# before the fix: stdout "line 5", exit 0
# after the fix: stdout "line 4", exit 0
# finding 2026-10-17T21-13-56-323Z-xzoc-ruff-UP009/r2-p006; rule fired 1 time(s) before the fix

# -*- coding: utf-8 -*-
class DebugCM:
    def __enter__(self):
        import inspect
        self.line = inspect.currentframe().f_lineno
        return self
    def __exit__(self, *args):
        pass
    def write(self, s):
        print(s)
with DebugCM() as cm:
    cm.write(f'line {cm.line}')