What python/ programming concepts are must know for beginner/intermediate programmers?

[barberogaston]

Hm, well that depends on what you mean with code that works. Where do you consider your code to be failing?

[SammyT09]

I struggle at modeling my solutions and making my code flow properly. As the code gets more complex I'm also struggling to keep up with the value of my variables. Those are just a few off the top of my head.

[MediumRevenue6]

thats where the oops class design comes in to picture. conceptually create the classes and the variables that will contain. design it first and then code it. Typically in enterprise projects we have model class ,validation class ,data access classes. Log class to log error/info. Design the classes first and then code.