I haven’t worked directly in software development for many years, so I’m not an expert when it comes to programming. But somehow I know it differently. Finding bugs in code used to be a lot easier. Maybe it’s just me, but I find debugging blockchain applications quite tedious. Now, in…

One thing in advance. I thought for a while about sharing this article at all. Most of you will probably grab your head and say, ‘that’s logical’. For me, it wasn’t and I had to chew through it step by step to understand how we came to this conclusion. This…

The problem When we are trying to test for a reverted transaction to make sure the “only owner” modifier works as intended. The check relies on a mechanism where a Virtualmachine error is caught when the transaction reverts and thus proves, that the modifier works. Until brownie v1.18.1 this mechanism…

EDIT 26. Feb 2022: After I wrote this article I ran into another problem. A python library has issues with directory names with dots in it like python3.9.venv. This has been taken into account here. Most of the error messages I am recently getting are garbage, I don’t know if…

The following solution is written for Windows, but Mac should be very similar with minor changes in the path. Please keep in mind that lint is not necessary for the code to work, this is just for lint to recognize the libraries. Please check if you have the desired packages…

This article relates to the excellent Solidity, Blockchain, and Smart Contract Course — Beginner to Expert Python Tutorial by Patrick Collins. If you are running into difficulties installing brownie as described in the video in lesson 5, this article here might help to solve the issue. After the kind feedback…