Python notes:

Introduction to python syntax:

• python is a general-purpose programming language used for web applications, data analysis, automation, AI, scripting, etc.

• python program is usually read and executed from top to bottom, line by line.

• python script is made of statement. (statement is a complete instruction that the interpreter can execute.

• syntax designed to be readable and close to plain language.

How python code is structured:

• colon starts a block = if/for/def

• spaces to indent the code, so its only run when the condition is true

• syntax = set of rules that defines how code must be written so that a programming language can understand it.

Data types:

• int

• float

• str (text)

• bool

• list (many values)

• input() (ask the user)

Creating a variable:

• python uses the assignment operator ‘=’ to place a value into a variable.

Why conversion is needed:

• input from a user is always received as text

• numeric information entered through the keyboard must often be converted before calculations can happen.