Author: Elliot Forbes | @Elliot_F

This tutorial was built using Python 3.6

Maps in Python are syntactic sugar that allow you to very succinctly iterate through every element of an array and perform a function on it.

Imagine we started off with a list of values numbering from 2-6 like so:

```
values = [2,3,4,5,6]
```

And we had a function which doubled said values:

```
def double(x):
return x * 2
```

With the use of maps we would have to do something like so in order to multiply every element:

```
for value in values:
value = double(value)
```

but with maps we can be far more succinct:

```
results = list(map(double, values))
```

### Complete Example

Below you’ll find a complete exmaple for a simple map which applies the double function to every element in the values array.

```
values = [2,3,4,5,6]
def double(x):
return x * 2
results = list(map(double, values))
print(results)
```

this produces the following output:

```
[4, 6, 8, 10, 12, 14, 16]
```