---
title: merge_dictionaries
tags: dictionary,intermediate
---

Merges two or more dictionaries.

Create a new `dict()` and loop over `dicts`, using `dictionary.update()` to add the key-value pairs from each one to the result.

```py
def merge_dictionaries(*dicts):
  res = dict()
  for d in dicts:
    res.update(d)
  return res
```

```py
ages_one = {
  "Peter": 10,
  "Isabel": 11,
}
ages_two = {
  "Anna": 9
}
merge_dictionaries(ages_one, ages_two) # { "Peter": 10, "Isabel": 11, "Anna": 9 }
```