How to use “for” loops in Python. There are two main types of loop across programming. These are “for” loops and “while” loops. For loops are used to run through a range – for ...

A function is a block of code that performs one desired action. Common examples are the “print()” function that allows output code to be shown in the console “math.sqrt()”, which returns the square ...

By using the open() function and a simple loop, you can cycle through a list of file names and assign a variable with a reference to that file, storing it for later use. Create a list of file names.

If you’ve ever written any Python at all, the chances are you’ve used iterators without even realising it. Writing your own and using them in your programs can provide significant perfo… ...

The ending value (4 in this case) in the range() function isn't printed because it's excluded from the range. while Loop The while loop is used when you're uncertain how long the loop will run.