ndarray-10.py

import random
import numpy as np

# Create a list of temperatures
temperatures = [
    random.randint(-100, 350) / 10
    for _ in range(1_000_000)
]
# And create a NumPy 'ndarray' from that list
temperatures_np = np.array(temperatures)

# Functions to convert from ºC to ºF
def convert_using_loop(data):
    result = []
    for temperature in data:
        result.append(temperature * 1.8 + 32)
    return result

def convert_using_numpy(data: np.ndarray):
    return data * 1.8 + 32