AdventOfCode 2021 in Python

I am using advent of code to exercise my python knowledge https://adventofcode.com/2021

Day 1

part 1 - 1553
part 2 - 1597

Day 2

part 1 - 1427868
part 2 - 1568138742

Day 3

part 1 - 3009600
part 2 - 6940518

Day 4

part 1 - 8442
part 2 - 4590

Day 5

part 1 - 4993
part 2 - 21101

Day 6

part 1 - 383160
part 2 - 1721148811504 (got to love exponential growth)

Day 7

part 1 - 354129
part 2 - 98905973

Day 8

part 1 - 493
part 2 - 1010460

Day 9

part 1 - 452
part 2 - 1263735