Fortunately, Python’s enumerate() lets you avoid all these problems. When the program control reaches the while loop, the condition is … For Loop Over Python List Variable and Print All Elements. We cannot write a simple nested for loop in one line of Python. One program structure within another, such as a conditional statement inside a branch of another conditional statement. While it’s possible to condense complicated algorithms in a single line of code, there’s no general formula. A while loop in python iterates till its condition becomes False. Which of the following sequences would be generated bt the given line of code? 99% of Finxter material is completely free. These operators combine several true/false values into a final True or False outcome (Sweigart, 2015). Knowing small Python one-liner tricks such as the ternary operator is vital for your success in the Python language. As you can notice in an example above, there is an if-else condition inside the while … ... Python For Loop Examples; Go Language for Loop Examples; Linux / UNIX: Run Command a Number of Times In a Row ... (but not one file per line) ] Reply Link. Join our "Become a Python Freelancer Course"! List comprehension condenses this into a single line of code–that is also readable, more efficient, and concise. #Test multiple conditions with a single Python if statement. But it’s also an introduction to computer science, data science, machine learning, and algorithms. In the loop body print(i**2 if i<5 else 0) we print the square number i**2 if i is smaller than 5, otherwise, we print 0. Let’s explore an alternative Python trick that’s very popular among Python masters: Being hated by newbies, experienced Python coders can’t live without this awesome Python feature. You create an empty list squares and successively add another square number starting from 0**2 and ending in 8**2—but only considering the even numbers 0, 2, 4, 6, 8. Just like while loop, "For Loop" is also used to repeat the program. Nevertheless, there are situations when it's better to use and or or logic than the ternary operator. While loop works exactly as the IF statement but in the IF statement, we run the block of code just once whereas in a while loop we jump back to the same point from where the code began. Infinite loops are the ones where the condition is always true. The more complicated the data project you are working on, the higher the chance that you will bump into a situation where you have to use a nested for loop. If you’re interested in compressing whole algorithms into a single line of code, check out this article with 10 Python one-liners that fit into a single tweet. Python for loop can be used to iterate through the list directly. Then a for statement constructs the loop as long as the variab… To help students reach higher levels of Python success, he founded the programming education website Finxter.com. In Python, there is not C like syntax for(i=0; i