Returns the full path to the default package configuration file.

    Args:
    package (str): name of the python package to return a path for.

def _package_path(package):
    """Returns the full path to the default package configuration file.

    Args:
    package (str): name of the python package to return a path for.    
    """
    from os import path
    confdir = config_dir()
    return path.join(confdir, "{}.cfg".format(package))