ogrinspect.py 文件源码

def layer_option(option, opt, value, parser):
    """
    Callback for `make_option` for the `ogrinspect` `layer_key`
    keyword option which may be an integer or a string.
    """
    try:
        dest = int(value)
    except ValueError:
        dest = value
    setattr(parser.values, option.dest, dest)