What are the key code differences when adapting the technique from Python2 to Python3?

The main differences involve string and bytes handling. In Python2, strings could be used directly, but Python3 requires explicit conversion of `Str` to `bytes`. For example, `.decode('utf-8')` must be replaced with `.decode('ISO-8859-1')` to avoid invisible character parsing issues. The article provides specific code adjustments for these conversions, as detailed in the original article.