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Introduction to Python


Every programmer needs to know Python, including those looking to work in rapidly-growing fields such as machine learning and A.I. During this course, you’ll learn the fundamentals you need to take the next step in your career.

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  • Estimated time
    35 hours

  • Enroll by
    October 12, 2022

    Get access to classroom immediately on enrollment

  • Prerequisites
    No Experience Required
In collaboration with
  • Mode

What You Will Learn

  1. Introduction to Python

    35 hours

    In this course, you’ll learn to represent and store data using Python data types and variables, and use conditionals and loops to control the flow of your programs. You’ll harness the power of complex data structures like lists, sets, dictionaries and tuples to store collections of related data. You’ll define and document your own custom functions, write scripts and handle errors. You will also learn to use two powerful Python libraries — Numpy, a scientific computing package, and Pandas, a data manipulation package.

    Prerequisite knowledge

    1. Why Python Programming

      Gain an overview of what you’ll be learning and doing in the course and understand why you should learn programming with Python.

      • Data Types and Operators

        Learn to represent data using Python’s data types: integers, floats, booleans, strings, lists, tuples, sets, dictionaries, compound data structure. Perform computations and create logical statements using Python’s operators: Arithmetic, Assignment, Comparison, Logical, Membership, Identity. You'll also declare, assign, and reassign values using Python variables, modify values using built-in functions and methods, and practice whitespace and style guidelines.

        • Control Flow

          Write conditional expressions using if statements and boolean expressions to add decision making to your Python programs, and learn how to use for and while loops along with useful built-in functions to iterate over and manipulate lists, sets and dictionaries. Condense for loops to create lists efficiently with list comprehensions, and use skip iterations in loops using break and continue.

          • Functions

            Learn to define your own custom functions, create and reference variables using the appropriate scope, and add documentation to functions using docstrings. You'll also define lambda expressions to quickly create anonymous functions and use iterators and generators to create streams of data.

            • Scripting

              Learn to install Python 3 and set up your programming environment, and begin running and editing python scripts. You'll also identify and handle errors and exceptions in your code, open, read and write to files, and find and use modules in Python Standard Library and third-party libraries.

              • Numpy

                Create, access, modify, and sort multidimensional NumPy arrays (ndarrays), and use slicing, boolean indexing, and set operations to select or change subsets of an ndarray. Understand the difference between a view and a copy of ndarray, perform element-wise operations on ndarrays, and use broadcasting to perform operations on ndarrays of different sizes.

                • Pandas

                  Learn to create, access and modify the main objects in Pandas, Series and DataFrames, perform arithmetic operations on Series and DataFrames, load data into a DataFrame, and deal with Not a Number (NaN) values.

                  • Course Project: Explore US Bikeshare Data

                    You will use Python to answer interesting questions about bikeshare trip data collected from three US cities. You will write code to collect the data, compute descriptive statistics and create an interactive experience in the terminal that presents the answers to your questions.


                  Introducing new Udacity Single Courses

                  Our students asked and we listened. You can now get the in-demand tech skills you need faster and for less money by enrolling in one of our new, one-month Single Courses. You’ll get the specific job-ready skills you need in as little as four weeks and for a fraction of the cost.

                  Of course if you are looking for a more robust, in-depth education, you can still enroll in one of our 3-6 month Nanodegree programs.

                  Both programs are part-time and online, and they both offer 24/7 support, quality Udacity-produced content, courses created with the help of top tech companies, and more. You can always start with a Single Course and upgrade to a full Nanodegree program if you like.

                  All our programs include:

                  • Real-world projects from industry experts

                    With real-world projects and immersive content built in partnership with top-tier companies, you’ll master the tech skills companies want.

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                    Our knowledgeable mentors guide your learning and are focused on answering your questions, motivating you, and keeping you on track.

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                    Validate your understanding of concepts learned by checking the output and quality of your code in real-time.

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                    Tailor a learning plan that fits your busy life. Learn at your own pace and reach your personal goals on the schedule that works best for you.

                  Course offerings

                  • Class content

                    • Real-world projects
                    • Project reviews
                    • Project feedback from experienced reviewers
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                    • Technical mentor support
                    • Student community

                  Succeed with personalized services.

                  We provide services customized for your needs at every step of your learning journey to ensure your success.

                  Get timely feedback on your projects.

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                    project reviewers

                  • 2.7M

                    projects reviewed

                  • 88/100

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                    avg project review turnaround time

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                    technical mentors

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                    median response time

                  Learn with the best.

                  Learn with the best.

                  • Josh Bernhard

                    Data Scientist at Nerd Wallet

                    Josh has been sharing his passion for data for nearly a decade at all levels of university, and as Lead Data Science Instructor at Galvanize. He's used data science for work ranging from cancer research to process automation.

                  • Derek Steer

                    CEO at Mode

                    Derek is the CEO of Mode Analytics. He developed an analytical foundation at Facebook and Yammer and is passionate about sharing it with future analysts. He authored SQL School and is a mentor at Insight Data Science.

                  • Juno Lee

                    Curriculum Lead at Udacity

                    Juno is the curriculum lead for the School of Data Science. She has been sharing her passion for data and teaching, building several courses at Udacity. As a data scientist, she built recommendation engines, computer vision and NLP models, and tools to analyze user behavior.

                  • Richard Kalehoff


                    Richard is a Course Developer with a passion for teaching. He has a degree in computer science, and first worked for a nonprofit doing everything from front end web development, to backend programming, to database and server management.

                  • Karl Krueger

                    Command Line Instructor

                    Before joining Udacity, Karl was a Site Reliability Engineer (SRE) at Google for eight years, building automation and monitoring to keep the world's busiest web services online.

                  Introduction to Python

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                  Introduction to Python

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