---
id: mergedeep
version: "1.3.4"
license: unclear
license_treatment: permissive
maintenance: dormant
---

# mergedeep — A deep merge function for 🐍.

License: permissive · Maintenance: dormant · Popularity: top 1,000 on PyPI

## Install

pip install mergedeep
uv add mergedeep
poetry add mergedeep

## Description

# [mergedeep](https://mergedeep.readthedocs.io/en/latest/)

[![PyPi release](https://img.shields.io/pypi/v/mergedeep.svg)](https://pypi.org/project/mergedeep/)
[![PyPi versions](https://img.shields.io/pypi/pyversions/mergedeep.svg)](https://pypi.org/project/mergedeep/)
[![Downloads](https://pepy.tech/badge/mergedeep)](https://pepy.tech/project/mergedeep)
[![Conda Version](https://img.shields.io/conda/vn/conda-forge/mergedeep.svg)](https://anaconda.org/conda-forge/mergedeep)
[![Conda Downloads](https://img.shields.io/conda/dn/conda-forge/mergedeep.svg)](https://anaconda.org/conda-forge/mergedeep)
[![Documentation Status](https://readthedocs.org/projects/mergedeep/badge/?version=latest)](https://mergedeep.readthedocs.io/en/latest/?badge=latest)

A deep merge function for 🐍.

[Check out the mergedeep docs](https://mergedeep.readthedocs.io/en/latest/)

## Installation

```bash
$ pip install mergedeep
```

## Usage

```text
merge(destination: MutableMapping, *sources: Mapping, strategy: Strategy = Strategy.REPLACE) -> MutableMapping
```

Deep merge without mutating the source dicts.

```python3
from mergedeep import merge

a = {"keyA": 1}
b = {"keyB": {"sub1": 10}}
c = {"keyB":...

## AI interpretation — verify before relying

mergedeep recursively combines multiple dictionaries into a single result, with configurable strategies for handling conflicts between nested keys and different value types.

Verdict: mergedeep is a lightweight, dependency-free utility for deep dictionary merging with multiple strategies and no known vulnerabilities. Its dormant maintenance status (last release February 2021) poses a modest risk for future Python compatibility issues, but the narrow scope and stable API make it suitable for projects that can tolerate infrequent updates.

[View on SkillFed](https://skillfed.io/packages/mergedeep) · [View on PyPI](https://pypi.org/project/mergedeep/)