Lesson 3

We will learn for-loop

Answer to lesson 2 homework

repeat = input("how many $ would you like? : ") #(1)

print("$" * int(repeat))                        #(2)

1. python function input returns the value you enter on the terminal
2. keyword int converts data type string to data type int

Ouput

> how many $ would like : 6
$$$$$$

Breakdown of for-loop

Code

for i in range(10)          # (1)
    print(i)

1. i is a variable of type int. you can name it anyway you like.

Output

0
1
2
3
4
5
6
7
8
9

Lab 1 - triagle

Use for loop and int keyword and python expression for printing * symbol six times e.g. "*" * 6

expected output 1code 1

*
**
***
****
*****

for i in range(6)
    print("*" * i)

Lab 2 - reversed triagle

expected output 2code 2

*****
****
***
**
*

j = 5
for i in range(5)
    x = j - i
    print("*" * x)