CSE 190: Working with Large Code Bases

Spring 2025

1

Lecture 11

Announcements

1. Group Project Proposals
1. Recommendations will be given this Thursday (May 8)
2. Make sure all team members join the Github team repo
2. Project 3 Peer Code Reviews
• Updated Peer Code Review Template
• Peer Code Review Instructions
3. Project 4 will be released today
4. Code Walkthrough Presentations

Copilot Features–DEMO of Project 2

Code Generation

• Prompting via comments (Get total number of lines)
• Using /edit (goto_line_event)
• Using /fix (Goto class, int casting)

Activity 1: Modifying with Copilot

1. Modify the source code so that the amount of time that the code is highlighted is 5 seconds long
2. Open-ended: Take some time to try out Copilot on your own for anything you want! An example idea from past lecture:
1. Changing the Python Prompt to display more characters and having the sidebar widen based on the prompt

Sandboxing with LLMs

“Sandboxing” and Discussing Tkinter

• Take about 10 minutes to try to learn about the Tkinter text widget
• Say your manager wants your to summarize the key documentation related to the Tkinter text widget for the rest of the team. How do you go about doing this?
• Why the “end -1c”?
• How come insert sometimes has three parameters? What do each of the parameters mean?
• Can you explain the insert and delete lines in the update_sidebar_text method?
• What are the different “states” in the tk.configure method and what do they do?

https://bit.ly/lec11-act

Activity: Word Count in Status Bar

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Add a word count display to the status bar that updates as the user types.

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Activity: Understanding Syntax Highlighting

Explain at a high level how syntax highlighting works in IDLE.

Specifically, explain how IDLE assigns different colors to different things.

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1. Explain how comments are found in code?
2. How could you change the color of comments?

https://tinyurl.com/cse190-lec11-act1

Resources

Copilot Cheat Sheet

Copilot Workspace Context