The basics of writing iterations in Python using for loops, list comprehensions, and map. Multiple FOR loops. Example. This method of looping in Python is very uncommon. In addition to being more compact, they are usually slightly faster since some overhead is removed: %% timeit z = [x [i] + y [i] for i in range (n) The output is: 87.2 µs ± 490 ns per loop (mean ± std. Consider the loop above that prints out the elements of the list namelist one at a time: loop before it has looped through all the items: Exit the loop when x is "banana", Consider the following example that starts with the variable numbers, defined as a range from 0 up until 9. Note that the range function is zero based. 1. As is the case with while loop, if statement is a single statement (not a compound statement), the scope of variables declared in it is limited to the loop body as if it was a compound statement. of 7 runs, 10000 loops each) Please, note that the output of timeit depends on many factors and might be different each time.. ... Python | Split the Even and Odd elements into two different lists. Reason of using a resistor parallel with NTC at mains input. However there are a few things which most beginners do not know about them. Before executing the code inside the loop, the value from the sequence gets assigned to the iterating variable (“iter”). By using our site, you acknowledge that you have read and understand our Cookie Policy, Privacy Policy, and our Terms of Service. In Python, there is not C like syntax for(i=0; i