# How do I concatenate two lists in Python?

You can concatenate two lists in Python by using the **`+`** operator or the **`extend()`** method.

Here is an example using the **`+`** operator:

```python
list1 = [1, 2, 3]
list2 = [4, 5, 6]
list3 = list1 + list2
print(list3)  # Output: [1, 2, 3, 4, 5, 6]
```

Here is an example using the **`extend()`** method:

```python
list1 = [1, 2, 3]
list2 = [4, 5, 6]
list1.extend(list2)
print(list1)  # Output: [1, 2, 3, 4, 5, 6]
```

Note that the **`extend()`** method modifies the list in place, whereas the **`+`** operator creates a new list.