Quick Answer

Isolate Python project dependencies.

Understanding the Issue

Virtual environments create isolated Python environments for projects.

The Problem

This code demonstrates the issue:

Bash Error 
# Need to create virtual environment

The Solution

Here's the corrected code:

Bash Fixed 
# Python 3 standard:
python -m venv myenv

# Activate (Windows):
myenvScriptsactivate

# Activate (Unix/macOS):
source myenv/bin/activate

# Install packages:
pip install package

Key Takeaways

Always use virtual environments for project isolation.