Start to Learning Python

After finishing the web development class, I started learning Python.

I had gone through the Python handbook 3 weeks ago, so the first part was easy to follow.

The hardest thing I learned today was counting numbers and adding numbers in a list.

• Print the number of even numbers in a list

num_list = [1, 2, 3, 6, 3, 2, 4, 5, 6, 2, 4]

count = 0

for num in num_list:
    if num % 2 == 0:
        count += 1

print(count)

• Add all the numbers in the list

num_list = [1, 2, 3, 6, 3, 2, 4, 5, 6, 2, 4]

result = 0
for num in num_list:
    result += num

print(result)

I didn’t understand the meaning of ‘+=’ at first, but as I worked through some examples, it got stuck in my head.