Class Detail

Provides students with Python programming skills and the ability to design programs and read Python code. Topics include data types, control flow, methods and advanced functions, built-in data structures, and introduction to OOP. No prior programming experience is required. Students may not receive credit for CSE 20 after receiving credit for CSE 30. Students with prior programming experience (especially in Python) are encouraged to take CSE Testout Exam to be evaluated for their readiness to take CSE 30 directly: https://undergrad.soe.ucsc.edu/cse-20-testout-exam.

Antirequisite: Students cannot enroll in this class after receiving a C or better in CSE 30.

Enrollment in the associated discussion section is mandatory.
All students - if you completed the prerequisites but get an error message - email your proof of prerequisite material to the instructor for approval to enroll - Yue Hao, hyue11@ucsc.edu.
From the Instructor: Welcome to CSE 20! This course is designed to help you build a strong foundation in programming using Python. Programming has become a new literacy in the modern world, enabling individuals to express creativity, solve complex problems, and bring innovative ideas to life. Python is one of the most widely used and beginner-friendly programming languages, which offers versatile applications such as building websites, automating tasks, and even creating games. Python is also a stepping stone to a variety of career paths in tech, data science, artificial intelligence (AI), and more, making it a powerful skill to have in today?s world. By learning Python, you?re opening doors to opportunities and innovations that can shape your future. Throughout this course, you will gain practical skills and ability in designing programs, and reading and writing code in Python. We will cover essential topics like data types, control flow, functions, built-in data structures, object-oriented programming (OOP), etc.

Days & Times	Room	Instructor	Meeting Dates
MW 01:00PM-04:30PM	J Bask Aud 101	Yue,H.	07/28/25 - 08/29/25