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 ...

Star triangle pattern in Python. For example, with a right-angle triangle, the number of stars on any given row is equal to the row you're on. Here's the code for that: for i in range(0,10): for j in ...

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.