Nov 07, 2018 · List Comprehensions are one of the most amazing features of Python. It is a smart and concise way of creating lists by iterating over an iterable object. Nested List Comprehensions are nothing but a list comprehension within another list comprehension which is quite similar to nested for loops. Python Lecture: Nested Loops (Examples: mult, stars, primetest, diamond, checkerboard) Loops Inside of Loops I. Analogy - Nested Loops and Tables, Multiplication Table In most of the loop situations we have encountered so far, a loop index marches linearly in some direction, eventually stopping when it gets too big or too small. If we
Python For Loops : A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string). This is less like the for keyword in other programming language, and works more like an iterator method as found in other object-oriented programming languages.