Your First Program

The first program that is usually written by a beginning python programmer is a program that writes "hello world" on the screen.

This program is very simple. Type:

print 'hello world'

Then save and run it. It will show "hello world" on the screen.

The print command tells the computer to write whatever is in quotations after the command.

The one rule is that the text you want to print must be in quotes. You can use single or double quotes as long as you end with the same type of quote.

So you can't type, "hello world' or 'hello world".

But 'hello world' and "hello world" will work,

Next Post: Variables

Download python

To download the python programming tools, click here.

Open the python folder, and you will see several applications.
The application IDLE or IDE depending on which version you are using, is the interpreter.
Type commands there for it to execute them.
If you go to file > New Window you will get a blank page.
This is where you will type your longer scripts with several lines.

The window that comes up automatically is the interpreter. Type scripts there to see if they work but you can only put one line at a time, so use the new window to write scripts.

To execute the script, save them (File > Save) and execute them (Run > Run Module) or F5. The window with the scripts must be selected for you to see the run option.

Next post : Your First Program!

Welcome!

Here I plan to teach anyone who would like to listen how to write simple programs using python. If you want more or have questions, email me at marwan.kallal@gmail.com.

Thanks,
qwertyfreak