Python

Python: Part 1

by Stephen Chen

​Introduction: What is Python?

​Python is a high-level general purpose programming language.  Python constructs as well as its object-oriented approach aim to help programmers write clear, logical code for small and large-scale projects.

​Coding Basics

​print - The print function put text on screen.

​x = 5 - This creates a variable that's whose value is 5.

​MyString = ["_", "_"] - Creates a string named MyString.

​Creating "Hello, World!" in Python

​Download Python here: https://www.python.org/downloads/ (Copy and Paste)

​

​Type in: print ("Hello, World!")

​

​Output: Hello, World!

​Variables in Python

Variables store 1 value in Python.

​Type in: x = 1

​ print (x)

​Output: 1

​To change a variable, type in...

​<variable name> = <new value>

​

​Type in: x = 2

​ print (x)

​Output: 2

​Strings in Python

Strings store multiple values in Python.

​

​Type in: MyString = [1, 2, 3, 4, 5]

​ print (MyString)

​Output:

​

[1, 2, 3, 4, 5]

​

Multiple Choice

Quiz: What is a  string?

• A variable that stores multiple values.

• A variable that stores 1 value.

• A function that outputs words/numbers.

• A function that asks user input.

Multiple Choice

Quiz: What is a  variable?

• A function that inputs a module.

• A variable that stores 1 value.

• A function that outputs words/numbers.

• A function that asks user input.

Multiple Choice

How do you create words in Python?

• Using the if then function

• Using a variable

• Using the import function

• Using the print function