aoc-haskell-template VS advent-of-code-data

The one additional trick I'd point out is using https://github.com/wimglenn/advent-of-code-data to help automate the process of acquiring your input:

By the way, I use https://github.com/wimglenn/advent-of-code-data to get the data. I removed it from the code to avoid confusion.

advent-of-code-data updated to match this format in v1.2.3 (#91)

I think that's a one-time thing though, so if you get the session cookie now you can use it for the rest of December. There's a python module to grab inputs and submit answers here, would love to see something similar in Haskell!

In addition to doing previous years’, I’d check out https://github.com/wimglenn/advent-of-code-data, which you can use to write some automation about loading data and submitting your responses. If you don’t know how to write unit tests, this might be a good chance to learn the basics. In most problems, he gives you a sample input and the expected result.

If you absolutely must have something download the input for you, then please use an existing, well-tested system like aocd. More people using it and contributing to it makes it less likely that it will have any significant defects.

While researching this I came across https://github.com/wimglenn/advent-of-code-data . If you are looking for something a little more fleshed out than a command line. It lets you access previous years' data as well. Pretty cool.

Since you're using Python, maybe just use https://github.com/wimglenn/advent-of-code-data/tree/master/aocd that seems to have already done these things.

advent-of-code-data might be of use for you, it provides some helpers to fetch inputs and submit solutions to structure your solution around.