def normalize_path(filename):
    return os.path.normcase(os.path.realpath(filename))
Parse the time window start time.
dataset/ETHPy150Open anzev/hedwig/build/pip/pip/_vendor/pkg_resources/__init__.py/normalize_path--crossover with--dataset/ETHPy150Open m-lab/telescope/telescope/selector.py/SelectorFileParser._parse_start_time