# 5.2. Data Type for `True`/`False`¶

In order for us to build code that can make decisions, we need to understand how programming languages represent true and false.

Example

Run the following code and examine the output:

In the code above, we make four comparisons and then print the results to the console. Python evaluates each comparison as being either `True` or `False`.

1. In line 1, the equality operator `==` compares the strings `'dog'` and `'cat'`. Since these are NOT the same, the comparison returns the value `False`.
2. In line 2, the operator `<` compares the values of 3 and 4. Since 3 is indeed less than 4, comparison returns the result `True`.
3. The comparison in line 3 returns `False`, since 3 is NOT larger than 10.
4. In line 4, the `!=` operator stands for “not equal”, so `'dog' != 'cat'` returns `True`, while something like `3 != 3` would return `False`.

## 5.2.1. Identify `True` and `False`¶

Recall that the `type()` function tells us the data type of what’s inside the `()`.

Run the code below to identify the data type for `True` and `False`.

Hmm! In the previous chapter, we learned about three data types—`int`, `float`, and `string`. The first two deal with numbers, while `string` deals with collections of characters.

To this, we will add the data type `bool`, which stands for boolean value.

### 5.2.1.1. Boolean Values¶

There are only two boolean values—`True` and `False`.

Note

Capitalization matters! Since Python is case-sensitive, `true` and `false` are NOT valid boolean values.

The values `True` and `False` are NOT strings. We can see this by printing another set of `type()` results:

Example

 ```1 2 3``` ```print(type(True)) print(type("True")) print(True == "True") ```

Console Output

```<class 'bool'>
<class 'str'>
False
```

Putting quotes around boolean values (`"True"` and `"False"`) makes them strings, just like `"1234"` is a string rather than an `int` data type.

Line 3 shows that even though they look similar, `True` and `"True"` are NOT the same! `str` and `bool` are different data types.

### 5.2.1.2. Data Type Review¶

1. The string (`str`) data type represents a collection of characters.
2. The integer (`int`) data type represents a whole number.
3. The float (`float`) data type represents a decimal value.
4. The boolean (`bool`) data type represents `True` or `False`.