YAPF 是 Google 开发的一个用来格式化 Python 代码的工具。
使用方法：
usage: yapf [-h] [--style STYLE] [-d | -i] [-l START-END | -r] ... Formatter for Python code. positional arguments: files optional arguments: -h, --help show this help message and exit --style STYLE specify formatting style: either a style name (for example "pep8" or "google"), or the name of a file with style settings -d, --diff print the diff for the fixed source -i, --in-place make changes to files in place -l START-END, --lines START-END range of lines to reformat, one-based -r, --recursive run recursively over directories
