Setup

Get your session token from the browser dev tools and put it (just the hex part) in input/token.txt

Running

To test day 1 (using part1/part2 docstrings as test input), run main.py 1 --test.

To run on actual day 1 input, just run main.py test. It will download and cache your input in the input/ folder.

Making a new day

Make days/day##.py, and implement functions for part 1 and 2 as you go. You can either implement part1(line), which will be called with each line, and all non-None results will be summed together, or you can implement part1_lines(lines) which will be passed a generator of lines, and returns whatever you want to print for the part's result.

Test input can be defined as a part's docstring, or shared by defining TEST\_DATA for the day. (Don't worry about extra whitespace, it's trimmed before passing).

Example

The following are equivalent - one line at a time:

def part1(line):
    """
    1
    2
    3
    """
    return int(line)

...or a generator:

def part1_lines(lines):
    """
    1
    2
    3
    """
    return sum([int(l) for l in lines])