> For the complete documentation index, see [llms.txt](https://python-self-driving.gitbook.io/self-driving/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://python-self-driving.gitbook.io/self-driving/python/random-library.md).

# Random library

The code below demonstrates how a library (like random) can be imported and then used.

## `random` is a Python "module". It provides functionality associated with randomness / probability.

```python
import random as rd
# Call the FUNCTION named random 3 times and assign the result of each
# call to a variable.
a = rd.random()
b = rd.random()
c = rd.random()
print("a is", a)
print("b is", b)
print("c is", c)

# random isn't the only function in the random module.
# Do a google search for "python random library" or 
# go here: https://docs.python.org/3/library/random.html
# to learn more.

print("Now keep pressing Ctrl+Enter to run this cell many times!")
print("Notice how the values of a,b, and c keep changing!")
```

```
a is 0.4969263088042536
b is 0.3784298209627044
c is 0.5713035042669655
Now keep pressing Ctrl+Enter to run this cell many times!
Notice how the values of a,b, and c keep changing!
```