__init__.py 文件源码

def _reads_exist(self, attribute, value):
        if isinstance(value, str):
            if not os.path.exists(value):
                raise FileNotFoundError('Reads file {} does not exist!'.format(value))
            if not os.path.isfile(value):
                raise OSError('{} is not a valid reads file'.format(value))
        elif isinstance(value, list):
            for x in value:
                if not isinstance(x, str):
                    raise Exception(
                        'Reads file not specified as string or list of string: type={} "{}"'.format(type(x), x))
                if not os.path.exists(x):
                    raise FileNotFoundError('Reads file {} does not exist!'.format(x))
                if not os.path.isfile(x):
                    raise OSError('{} is not a valid reads file'.format(x))
        else:
            raise Exception(
                'Reads file(s) not specified as string or list of string: type={} "{}"'.format(type(value), value))