Read requirements from 'requirements txt'

    :return: requirements
    :rtype: list

def get_requirements(filename=None):
    """
    Read requirements from 'requirements txt'

    :return: requirements
    :rtype: list
    """
    if filename is None:
        filename = 'requirements.txt'

    file = WORK_DIR / filename

    install_reqs = parse_requirements(str(file), session='hack')
    return [str(ir.req) for ir in install_reqs]