Today

Oh, a couple more expression things

Classes

Decorators

Generators and Iterators

Comprehensions

int[] arr = new int[length];
for(int i = 0; i < length; i++) {
	arr[i] = someComputation(i)
}

Files and Contexts

with open("text.txt", "r") as f:
	for line in f:
		print(line.strip())