# Create Project and Manage Dependencies with Poetry

[Watch this Poetry Video](https://www.youtube.com/watch?v=g9u-H628jXg&t=16s)

`Poetry` combines dependency management, environment management, and packaging into a single tool. This means you don’t have to juggle between multiple tools like `pip`, `virtualenv`, and `setuptools`.

Poetry in Python: Poetry is Python's answer to npm and Yarn, offering similar functionalities like managing dependencies, creating virtual environments, and ensuring reproducibility of projects. It simplifies the Python development workflow, making it easy to create robust applications.

Follow the txt file in this directory.

[Python Poetry Cheatsheet](https://gist.github.com/CarlosDomingues/b88df15749af23a463148bd2c2b9b3fb)

[Poetry Windows Installation](https://gist.github.com/Isfhan/b8b104c8095d8475eb377230300de9b0)

[Poetry vs. Pip: Modern Python Dependency Management Unveiled](https://python.plainenglish.io/poetry-vs-pip-modern-python-dependency-management-unveiled-15d39e059d39)

[The Pain and the Poetry of Python](https://www.pinecone.io/blog/pain-poetry-python/)

[Install pipx](https://pipx.pypa.io/stable/installation/)

[Follow Poetry Tutorial](https://realpython.com/dependency-management-python-poetry/)

    poetry —-version

Note: If you have a old version of Poetry Installed Upgrade it:

    pipx upgrade poetry

[Poetry Docs](https://python-poetry.org/docs/)

[What are Packages in Python and What is the Role of __init__.py files?](https://martinxpn.medium.com/what-are-packages-in-python-and-what-is-the-role-of-init-py-files-82-100-days-of-python-325a992b2b13)

[Poetry Commands](https://realpython.com/dependency-management-python-poetry/#command-reference)

    poetry run python --version

# Poetry for Microservice

Poetry is a tool for dependency management and packaging in Python. While it is not specifically optimized for microservices development, but its features can be particularly beneficial in a microservices architecture. Let's explore how Poetry aligns with the needs of microservices development:

### Features of Poetry Beneficial for Microservices

1. **Dependency Management**: Poetry provides a robust system for managing project dependencies. Each microservice in a microservices architecture typically has its own set of dependencies, and Poetry can help manage these dependencies effectively, reducing conflicts and ensuring consistency.

2. **Reproducible Builds**: Poetry locks dependencies to specific versions (through `poetry.lock` file), ensuring that every build is reproducible. This is crucial in microservices, where different services need to operate consistently across various environments.

3. **Easy Packaging**: With Poetry, packaging and distribution of Python packages are simplified. This can be useful for microservices, especially if they are distributed as packages or if you are working in a Python monorepo setup.

4. **Virtual Environments Management**: Poetry automatically manages virtual environments, keeping dependencies isolated for each project. In microservices, this means that each service can have its own isolated environment, reducing the risk of dependency conflicts.

5. **Streamlined Workflow**: Poetry streamlines various tasks like adding/removing dependencies, updating dependencies, and publishing packages. This can improve developer productivity, especially in a microservices setup where managing multiple small services can become complex.

6. **Integration with CI/CD Pipelines**: Poetry can easily be integrated into Continuous Integration/Continuous Deployment (CI/CD) pipelines, which are often a critical part of microservices infrastructure for automated testing and deployment.

### Considerations for Microservices Development

1. **Service Size and Complexity**: For simple microservices, the features offered by Poetry might be more than what is needed. However, for complex services with many dependencies, Poetry's dependency management and environment isolation can be extremely valuable.

2. **Consistency Across Services**: Using the same tool for dependency management across all microservices can help maintain consistency and standardization, which is essential in a distributed architecture.

3. **Language Specificity**: Poetry is a Python-specific tool. If your microservices architecture involves multiple programming languages, you might need different tools for dependency management for services not written in Python.

4. **Learning Curve**: For teams not familiar with Poetry, there might be a learning curve involved. However, Poetry is generally considered user-friendly and well-documented.

### Conclusion

While Poetry is not specifically tailored for microservices, its features around dependency management, environment isolation, and ease of packaging align well with the requirements of microservices development in Python. It provides a modern and efficient way to manage Python projects, which can be highly beneficial in a microservices context, especially for complex services or when working in a polyglot environment where consistency in Python-based services is important.

# youtube live session
1. `poetry --version`
2. `poetry new project_youtube`
3. `cd project_youtube`
4. `poetry run python --version`
5. `poetry add requests`
6. `poetry run python ./project_youtube/main.py`
7. `poetry add pytest`
8. `poetry run pytest`

# https://realpython.com/dependency-management-python-poetry/
