Function Design for Compilation

Keep Functions Short

Functions under 100 lines compile fastest and optimise best.

Minimise Side Effects

Pure functions with return values compile better than functions that mutate global state.

Avoid *args and **kwargs

Explicit argument lists compile to more efficient calling conventions.

Return Early

def find(data, target):
    for i, x in enumerate(data):
        if x == target:
            return i
    return -1