Here are my solutions to the Advent of Code 2020 puzzles. They may not be the most efficient or the most ingenious solutions, but they all should produce the correct answer reasonably quickly. Basically, I stick to the approach I used to work out the answer for my input and don't add / replace it with any other approach other solvers came up with, no matter how cool they are.
To get the solutions create a file named input_##.txt, where ## stands for the number of the day with a leading 0 if necessary, in the relevant folder and run the file with the name starting with day_. I'm using Python 3.8, although many of the solutions should work on lower versions as well.
Feel free to start a discussion if you have any questions or open an issue if you find any errors.