lesson1Title

lesson2Title

lesson3Title

lesson4Title

lesson5Title

lesson6Title

lesson7Title

lesson8Title

lesson9Title

lesson10Title

pythonIntroStep2Chapter1Title

pythonIntroStep2Chapter2Title

lesson11Title

lesson12Title

lesson13Title

lesson14Title

lesson15Title

lesson16Title

lesson17Title

lesson18Title

lesson19Title

lesson20Title

lesson21Title

pythonIntroStep2Chapter3Title

pythonIntroStep2Chapter4Title

# Variable declaration
is_raining = False

# Using the not operator to evaluate the opposite condition
if 0:
    print("It is not raining. No need for an umbrella.")

# The not Operator Returning the Opposite

In this lesson, we’ll explore the `not` operator more closely, expanding on its earlier introduction.

The `not` operator returns the **opposite** of a Boolean value.

It is primarily used with conditional statements to handle cases where a condition is false or negated.

<br />

## Using the not Operator

The `not` operator returns `False` if the value on its right is `True`, and `True` if the value is `False`.

```python title="Using the not Operator"
is_logged_in = False

# Prints True, the opposite of False
print("not is_logged_in:", not is_logged_in)

if not is_logged_in:
    print("Login is required.")
```

The `not` operator returns the opposite of a boolean value. Thus, `not True` returns `False`, and `not False` returns `True`.

### The `not` operator returns the opposite of the boolean value on its left.

The not Operator Returning the Opposite

The not Operator Returning the Opposite

Using the not Operator

The not operator returns the opposite of the boolean value on its left.

The `not` operator returns the opposite of the boolean value on its left.