CSS placement
Three kinds of css placement in HTML.
Python main
What the if __name__ == '__main__'does in python and practice of defining
python main functions.
Python function arguments
Python function standard arguments, positional arguments, and keyword arguments.
Selenium xpath selector
Selenium web element locating strategy using xpath.
Python aop with decorators
Python AOP (aspect oriented programming) with decorators.
Selenium css selector
Selenium web element locating strategy using css selector.
Python imports and PYTHONPATH
Python imports and PYTHONPATH.