Why Virtual Environments Matter
Understand dependency conflicts and why isolation is essential.
Introduction
Without virtual environments, all Python packages install globally, causing version conflicts across projects.
The Global Install Problem
By default, pip installs to the system Python. Project A needs requests 2.25, Project B needs 2.28 — conflict!
# Without venv:
# pip install requests==2.25 -> global
# pip install requests==2.28 -> overwrites 2.25!
print('global conflict demo')All lessons in this course
- Why Virtual Environments Matter
- Creating and Activating venv
- Managing Dependencies with pip
- Modern Tools: pipenv and uv