editor.py 文件源码

def edit(filename=None, contents=None):
    editor = get_editor()
    args = get_editor_args(os.path.basename(os.path.realpath(editor)))
    args = [editor] + args.split(' ')

    if filename is None:
        tmp = tempfile.NamedTemporaryFile()
        filename = tmp.name

    if contents is not None:
        with open(filename, mode='wb') as f:
            f.write(contents)

    args += [filename]

    proc = subprocess.Popen(args, close_fds=True)
    proc.communicate()

    with open(filename, mode='rb') as f:
        return f.read()