Summing Numbers in Python

# Accept user input for two numbers
first_number = input('Enter the first number: ')
second_number = input('Enter the second number: ')

# Compute the sum after converting to floats
total = float(first_number) + float(second_number)

# Output the result
print(f'The sum of {first_number} and {second_number} is: {total}')

Running this code produces:

Enter the first number: 1.5
Enter the second number: 2.5
The sum of 1.5 and 2.5 is: 4.0

Generating Random Entegers in Python

# Import the random module
import random

# Generate a random integer between 0 and 9 inclusive
random_value = random.randint(0, 9)
print(random_value)

Output may vary each execution, such as:

4

The randint(a, b) function returns a random integer N where a ≤ N ≤ b.

Printing Prime Numbers Within a Range

# Get range boundaries from user
start = int(input('Enter the lower bound: '))
end = int(input('Enter the upper bound: '))

# Iterate through the range
for current_num in range(start, end + 1):
    # Check if number is greater than 1
    if current_num > 1:
        # Test for primality
        for divisor in range(2, current_num):
            if current_num % divisor == 0:
                break
        else:
            print(current_num)

Sample execution:

Enter the lower bound: 1
Enter the upper bound: 100

Determining Days in a Month

import calendar

# Retrieve weekday of first day and total days for September 2016
first_weekday, days_count = calendar.monthrange(2016, 9)
print((first_weekday, days_count))

Output:

(3, 30)

The tuple indicates the first day of September 2016 was Thursday (3, where 0 is Monday) and the month had 30 days.

Clearing a List in Python

sample_list = [6, 0, 4, 1]
print('Before clearing:', sample_list)

sample_list.clear()
print('After clearing:', sample_list)

Result:

Before clearing: [6, 0, 4, 1]
After clearing: []

Additional Example Topics

1. Hello World Program
2. Calculating Square Roots
3. Solving Qudaratic Equations
4. Computing Triangle Area
5. Calculating Circle Area
6. Temperature Conversion (Celsius to Fahrenheit)
7. Swapping Variable Values
8. Conditional Statements with if
9. Loooping Constructs
10. String Manipulation Techniques