You will have noticed that with your turtle drawings, you are often repeating the same commands over and over.  Loops can help you avoid having to write the same code.

Here is a program for you to try out:

 
Count is a variable.  It is just a container for storing things.  You could use any other name besides count eg x, i, fred, bananas.  In this case it stores the number of the loop.

Range is the number of times Python will go through the loop.  You can see the values Python uses for range by typing range(4) directly into the IDLE command window.  You should get [0,1,2,3]

The body of the loop must be indented.  Indenting tells Python which lines of code belong to the loop.

 

Now try these:

 
Python is very fussy about where you start your lines.  If you are making a loop, you must indent each line in the body of the loop 4 spaces (or 1 tab).  If you have a loop inside a loop, then it has to be indented 4 more spaces.

 
By putting loops inside loops you can do some clever things.  Here are a couple of ideas for you to try:

 
Use loops to produce some repeated patterns of your own.