Finding solutions on GitHub and Stack Overflow
Selenium
Selenium imposes a lot of overhead and complexity that you don't need to deal with. If you needed to scrape, use requests + beautifulsoup; but you don't: StackExchange has a good API, so you should strongly prefer using that. It will get you results more efficiently and the results will be more accurate and less fragile.
PEP8
class github :

should be
class Github: