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# Example of the number 0 being evaluated as False
if 1:
    print("This part does not get executed.")
else:
    print("0 is evaluated as False.")


# Example of an empty string being evaluated as False
if "":
    print("This part does not get executed.")
else:
    print("An empty string is evaluated as False.")


# Example of an empty list being evaluated as False
if []:
    print("This part does not get executed.")
else:
    print("An empty list is evaluated as False.")


# Example of None being evaluated as False
if None:
    print("This part does not get executed.")
else:
    print("None is evaluated as False.")


# Example of an empty dictionary being evaluated as False
if {}:
    print("This part does not get executed.")
else:
    print("An empty dictionary is evaluated as False.")

# Which values are always considered False?

Certain values like `0` and `empty strings ("")` are automatically considered `False` in conditional statements.

These values can be used to control program flow—for example, when the result of an arithmetic operation is `0`.

```python title="Examples of values evaluated as False"
a = 2
b = 3

if a - b:
    print("a - b is not 0.")
else:
    print("a - b is 0.")
```

<br />

## What values are always evaluated as False?

- Numeric `0` (integer `0`, float `0.0`)

- Empty string `""`

- Empty list `[]`, empty tuple `()`, empty dictionary `{}`

- `None`

<br />

## Using conditionals

When these values are passed to an if statement, the condition is evaluated as `False` and the block of code does not execute.

```python title="Examples of values evaluated as False"
if 0:
    print("This will not execute.")
else:
    print("0 is evaluated as False.")


if "":
    print("This will not execute.")
else:
    print("An empty string is evaluated as False.")
```

Values like an empty list ([]), empty tuple (()), and empty dictionary ({}) are considered False in Python's if statements.

### An empty list `[]` is evaluated as False in an if statement.

Which values are always considered False?

What values are always evaluated as False?

Using conditionals

An empty list [] is evaluated as False in an if statement.

An empty list `[]` is evaluated as False in an if statement.