How can dependency management be implemented in a separate development environment when using Python?

To manage dependencies in a separate Python development environment, virtual environments are commonly used. This allows isolating packages and library versions for each project.

Main methods:

• venv (built-in module in Python 3):

python3 -m venv myenv
source myenv/bin/activate  # Linux/macOS
myenv\Scripts\activate    # Windows
pip install -r requirements.txt

• virtualenv (alternative tool for creating virtual environments):

virtualenv myenv
source myenv/bin/activate

• pipenv — combines virtual environment and dependency management:

pipenv install package_name
pipenv shell

• Poetry — modern tool for dependency management and packaging:

poetry init
poetry add package_name
poetry shell

Using virtual environments helps avoid conflicts between projects and ensures dependencies are reproducible.