How to set unchangeable path for log file

I have test files with different nesting level.For example:

/project/tests/flows/test_flow_1.py

/project/tests/orders/reports/test_reports.py

My setting for log path in pytest.ini is log_file = logs/tests.log

But pytest creates the directory 'logs' in each test directory.

Also I tried to set it in conftest.py file but then the log file just is not created:

def logs_path(request):    path = request.config.rootdir    logging.basicConfig(filename=os.path.join(path, 'tests.log'))

How can I set this creating only one time in the root project directory?