CS 2000 - Fall 2025.

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Welcome to CS 2000! 9/10/2025

Video of the Day

Python: lists from Socratica.

Python: list comprehensions from Socratica

Python: lambda expressions from Socratica

Logical problem of the day

There are only 10 types of people in the world: those who understand X and those who don't.

Solve for X.

https://pollev.com/slade You may also download the app to your phone. Use the "slade" poll id.

Canvas Quiz of the Day (need daily password)

Most days, there will be a simple canvas quiz related to the lecture. You need a password to activate the quiz, which I will provide in class. These quizzes will count toward your class participation grade. The quiz is available only during class.

Click for today's quiz.

Note: the collaboration quiz is separate. It coincides with the first homework assignment.

Lecture 4: Python.

Administrivia

I have office hours Wednesdays from 4-6 pm, on zoom, id 459 434 2854.

Starting next week, I will be available for lunch on Mondays at 1 pm in Morse.

ULA office hours are found at Ed Discussions on Canvas. Note that Christian Choi is our newest ULA.

Homework assignments: [Assignments]. hw1 is now available. Note: there is a list of provisional due dates for all assignments.

Announcements

Yale Information Society Project See this week's events.

CS Peer Advisers. Anika Karpurapu. (Part of DSAC.) Fall 2025 Peer Advisors Office Hours Schedule.

Getting to know Python

Python IDE's - Integrated Development Environments

You need to be able to write, edit, and debug python code. I use the emacs editor. See Emacs.

Students in this class typically go another route. These options include:

Visual Studio Code (VSCode) for Windows or macOs. See Visual Studio Code and VSCode video tutorial. (Recommended by your ULA Teresa who reports: There’s also a way to connect VS Code to the Zoo so that’s convenient.)
Sublime Text. See Sublime Text and Sublime Text video tutorial.
IDLE (Integrated Development and Learning Environment). See IDLE and IDLE video tutorial.

More Python

Guido van Rossum, Python's Benevolent Dictator for Life (BDFL).

Request for Comments, RFC. Internet equivalent of Python's PEP. Example: RFC 748 April 1, 1978. TELNET RANDOMLY-Lose Option.

Lists.html (jupyter) Python

Recursion.html (jupyter) recursion.py

Listcomp.html (jupyter) List Comprehensions listcomp.py

Sorting.html (jupyter) Python - Sorting

DictFiles.html (jupyter) Python - Dicts and FIles

Everything is bits!

See Music and Computation.

Getting to know UNIX

UNIX Introduction Principle 2. (+ head, cat, JCL, punchcards)

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