I know of a few people who had to make a calculator when learning VB in school, which is wild to me now, but I also believe learning Py for a first language is also good considering it's still relevant to some degree even in todays world.

Brother, he's evidently new to programming as a whole, especially considering in school they'll typically teach you how to make a calculator for your first task, he's going to have 0 idea on Py libraries, or any sort of Python period.

Who cares if it's VB? It's pretty much one of the easiest langs for someone to learn when they're new to programming since it's simple, don't act as if you went from no programming knowledge to knowing the ins and outs of C++ & C# for example.

You should probably post a snippet of the code, specifically the TextBox string, if you don't want to do that, then try to actually set the Text property.

As for the other issue, you could just be missing your cli64 folder, or you're trying to build a debug version of it, rather than the release version.