Before using kanjivg-radical, import each json files into dictionaries as following code.

import json

def load_json(filename):
    with open(filename) as f:
        d = json.load(f)
    return d

kanji2element = load_json("../data/kanji2element.json")
element2kanji = load_json("../data/element2kanji.json")    

1. Kanji to radicals:

In []: kanji2element["脳"]
Out[]: ['乂', '凶', '丿', '凵', '⺍', '月']

2. Radical to Kanjis:

In []: element2kanji["月"]
Out[]: ['溯', '齟', '蔡', '羂', '肝', '育', '胆', '朦', '輸', '梢' ...]

For further detail, see example/basic_usage.ipynb

Download kanjivg zip files from GitHub release page and extract in this repository's directory.

$ cd path/to/kanjivg-radical
$ wget https://github.com/KanjiVG/kanjivg/releases/download/r20160426/kanjivg-20160426-main.zip
$ unzip kanjivg-20160426-main.zip

And run a script as follows.

$ mkdir data
$ python src/extract_element.py

This repository include KanjiVG datasets and released under the Creative Commons Attribution-Share Aline 4.0 licence.