However, a third loop[nested loop] can be generated by nesting two or more of these loops. How they work behind the scenes. Fortunately, Python’s enumerate() lets you avoid all these problems. Let’s check out some exercises that will help you understand Python’s For Loops better. Looping statements in python are used to execute a block of statements or code repeatedly for several times as specified by the user. Which Streaming Service Should I Subscribe to? For example: traversing a list or string or array etc. It’s best explained over an example: >>> for in : >>> 5. The basic syntax of a nested for loop in Python is: What they are used for. We can loop over this range using Python’s for-in loop (really a foreach). Follow these real-world scenarios to learn how to leverage the advanced techniques in Python of list comprehension, Lambda expressions, and the Map function to get the job done faster. In Python, there is no C style for loop, i.e., for (i=0; i