We look at how we can use dictionaries to count the frequencies of many things at the same time.  We learn how the key and value are related in a dictionary and example the get method to retrieve values from a Python dictionary.

9.2 Building Histograms

These are the video lectures to supplement the textbook 'Python for Everybody: Exploring Information' and its associated web site www.py4e.com

Technology

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Higher Education

K-12

Educational Technology

Explore the nature of programming and how programming a computer is different than using a computer.

1.1 Why Program

In this lecture we learn abut how the computer processes and stores programs.  We learn about the CPU, Memory, Storage and Input / Output devices are brought together to write a program.

1.2 Hardware Architecture

We look at how writing programs is just another form of communication.  Instead of communicating with another person, we are communicating our ideas to a computer.

1.3 Python as a Language

We look at the basics of the Python language and how we write code in Python to communicate sequential steps, conditional steps and repeated steps.

9.2 Building Histograms

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