Installation & Commands

Option A: Codespace (Recommended)

1. Click this link to open a Codespace.
2. GitHub will create a fully configured environment in your browser (takes about 1-2 minutes).
3. Run l101 login in the terminal and follow the prompts to authenticate with GitHub.
4. You're ready to code.

Option B: Local Development

1. Install Python 3.9 or later from python.org.
2. Install the l101 CLI:

3. Authenticate:

4. Pull the starter code:

5. Navigate to the directory:

6. You're ready to code.

CLI Commands

Testing Workflow

1. Write code — Edit the starter files in your Codespace or local editor.
2. Test locally — Run l101 test namaste.py to check visible tests.
3. Fix issues — If tests fail, read the output, fix your code, and re-run.
4. Submit when confident — Run l101 submit pset0 to submit for grading.
5. Review results — Check your score. If it's not full marks, fix the issues and resubmit.

Python Basics Reference

name = input("What is your name? ")
print("Hello, " + name)

greeting = "Namaste"
name = "Aarav"
message = f"{greeting}, {name}"
print(message)

language = input("Preferred language: ").lower().strip()

if language == "hindi":
    print("Namaste")
elif language == "bengali":
    print("Nomoshkar")
else:
    print("Hello")

Troubleshooting