Das deutsche Python-Forum

webbrowser.open(url, new=0, autoraise=True)
...
Note that on some platforms, trying to open a filename using this function, may work and start the operating system’s associated program. However, this is neither supported nor portable.

click.exceptions.ClickException: nano: Editing failed!

    try:
        click.edit(filename=ini_filepath)
    except click.exceptions.ClickException as err:
        print("Click err: %s" % err)
        webbrowser.open(ini_filepath)