Python

Python

What should we know...

Variable

Variable - Part of a program that can be assigned a specific value.

Made up of two parts, an identifier and a value.

This value can change while the program is running.

Constant

Constant - Part of a program that can be assigned a specific value.

Made up of two parts, an identifier and a value.

This value can NOT change while the program is running.

Multiple Choice

What in the name of the variable in this Python code?

• name

• input

• print

• ("What is your name")

Comment

We can add notes to our code. It is important that we know how to do this.

To write a comment in your code, start the line with a # symbol. The whole line will then turn a grey colour.

Multiple Select

Why is it important that was use comments in our code?

• They help the program run smoothly

• So that when we come back to the code we can understand what it is doing

• To help other people understand what is going on in our code

• To add more colours into our code

Input, Output & Storage

The following slides are answer to Task 2 & 3.

Copy them into your our workbook

Data Types and Arithmetic

Watch the videos if you have earphones.

Arithmetic Operator

vs

Assignment Operator

Arithmetic Operator

Symbols you can use to perfom different calculations.

Assignment Operator

The = symbol is the assignment operator, it will assign the answer to the calculation.

Rational Operator

An operator that is used to compare data such as > or <=.

Logical Operators

AND, OR and NOT are examples of logical operators.

Multiple Choice

Which of these is not an arithmetic operator?

• +

• -

• *

• =