#! /usr/bin/env python
# -*- coding: utf-8 -*-

from sigma_urls import get_chemistry_base_urls, get_chemistry_urls

if __name__ == '__main__':
    get_chemistry_base_urls()
    get_chemistry_urls()
#! /usr/bin/env python
# -*- coding: utf-8 -*-

from sigma_urls import get_materials_urls

if __name__ == '__main__':
    get_materials_urls()
add get materials