Python interview questions and answers: Virtual environments and packaging

Python: Virtual environments and packaging

Creating Virtual Environments:

• What is a virtual environment in Python, and why is it relevant for development?
• How do you create a virtual environment in Python using the venv module?
• What are the benefits of virtual environments in Python projects?
• Explain the difference between global Python packages and packages installed within a virtual environment.
• Can you have multiple virtual environments with the same Python version? If yes, why would you do that?

Managing Dependencies with pip

• What is pip, and what is its role in Python development?
• How do you install packages using pip?
  Using pip, how do you list all the installed packages?
• What is the purpose of the requirements.txt file and how does it manage dependencies in Python?
• What is the process for upgrading and uninstalling packages using pip in Python?

Building and Distributing Packages

• What is a Python package, and how does it differ from a module?
• What is the best way to create a Python package that has a proper directory structure and a __init__.py file?
• What is the purpose of the setup.py file in Python package distributions?
• How do you use setuptools to build and distribute a Python package?