runner.py 文件源码

def fill(self, string, indent='    ', max_width=72):
        """Wrap string so it fits within at most ``max_width`` columns.

        If the terminal is less than ``max_width`` columns, the string
        will be filled into that smaller width instead.

        """
        if not isinstance(string, str):
            string = ' '.join(string)
        width = min(max_width, get_terminal_size().columns)
        return textwrap.fill(
            string, width=width, initial_indent=indent, subsequent_indent=indent,
            break_on_hyphens=False)