Comparison operators - interactively introduced#

The comparison operators in python are:

  • comparison operators (return either True or False)

    • == (equal to)

    • != (not equal to)

    • < (less than)

    • <= (less than or equal to)

    • > (greater than)

    • >= (greater than or equal to)

To illustrate using these, 3 is bigger than 2 so doing:

3 > 2

True

returns True. Using some of the variables defined previously we can try this out a few times:

# Here are the variables from previously
num1 = 10
num2 = -3
num3 = 7.41
num4 = -.6
num5 = 7
num6 = 3
num7 = 11.11

# Are these two expressions not equal to each other?
num3 != num4

True

# Are these two expressions equal to each other?
# Note I use brackets to make it clear what is being compared and the order in which to evaluate.
(num1 + num2) == num5

True

# Is the first expression less than the second expression?
num5 < num6

False

# Is this expression True?
5 > 3 

True

# You can do messy things like this. But what does it actually mean? Don't write things like this!
# Simple rule with coding: If it isn't clear what's going on, can you write it in a clearer way?
5 > 3 < 4 == 3 + 1

True