Virtual Environments

Main idea

Virtual env isolates project dependencies.

Tip

Create venv before installing anything.

Watch out

Installing packages globally.

Read this next

This lesson is about Virtual Environments. You are in the Real-World Tools part of the course.

Main idea:
Virtual env isolates project dependencies.

How to learn it: type a very small program first. Run it. Change one line and run again.

Tip:
Create venv before installing anything.

Common mistake:
Installing packages globally.

Your challenge:
Create and activate venv then install one package.

Scroll down to the challenge lab. Run your code there. When the output meets the task and the checks pass, press the green button to finish this topic.

Example code

Copy this example if it helps. Change it so it matches Virtual Environments.

# Topic: Virtual Environments
def main():
    sample = "edit me"
    # TODO: apply Virtual Environments concept here
    result = sample
    print("Result:", result)

if __name__ == "__main__":
    main()

Challenge

Create and activate venv then install one package.

Before you can finish: your output should include at least 16 characters; at least 1 non-empty line(s); no crash traceback—fix errors until the program runs cleanly.

Use Run. Read the output. Change your code until the task is done.

Starter reference

# Challenge starter for Virtual Environments
def solve():
    # Write your solution here
    pass

print("Update solve() and run")

Your code

The first Run may load Python in your browser (one-time). Later runs are faster.

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