VerticalMetricsTools is a set of tools to interact with vertical metrics data in font files. Mostly, it can generate a pdf visualising the states of vertical metrics in a given font.
VerticalMetricsTools is instalable localy with pip. Download the reposotiry and type in the folowing in the terminal:
pip3 install /path/to/your/downloaded/VerticalMetricsTools(pip should be pointed to the directory that contains setup.py).
VerticalMetricsTools is runing on Python 3, dependending on the way you installed Python on your machine, you should use either pip3 or pip.
Once the tool is installed, close your temrinal window and open a new one :)
Run the following command in your terminal
vertical_metrics_preview path/to/a/font.otfIf all went well, you should find a pdf next to the targeted font. Otf, ttf, woff and woff2 are supported. I think.