Let’s see all the different ways to iterate over a list in Python, and performance comparison between them. The for-loop will find every item from the list and the reversed() will put them reverse order and the print() function will print the values.. link brightness_4 code # Python code to reverse a string # using loop . This operation can be achieved by any kind of logic involving the conditional statements of python, such as for loop, while conditional statement, if condition, etc. PS: I can't use [::-1]. Here are some alternate and easy ways to reverse a string. Reverse a number using Python while loop. TIP: Please refer String article to understand everything about Python Strings. For example: traversing a list or string or array etc. This video is unavailable. Using while loop to iterate string characters in reverse order and append them. Hello everyone, in this tutorial we’ll see different ways to reverse string in Python. Python Tuples . It’s really an exciting option. You can see the output is a list format. In this article, we will use len() function and For Loop of Python to reverse a number. Use items() to Reverse a Dictionary in Python Use ... Printing a dictionary using items() will output an iterable list of tuple values that we can manipulate using the for loop for dictionaries. Python Sets. To reverse the list elements, you have to use Python for loop and reversed() function. Example. It was not necessary to loop the range() and using list() method we could directly convert the output from range to list format. We will go through each of them and their variations with examples. Using Loop This article discusses several ways to achieve it. First, we have calculated the length of the list using the len() method. Of course, our list of free python resources should help you learn about it quickly. asked Jun 12 '17 at 14:53. I know about this. Python list method reverse() reverses objects of list in place.. Syntax. While loops are executed based on whether the conditional statement is true or false. First, we understand the algorithm of this program. CommanderPO CommanderPO. Using Slicing to create a reverse copy of the string. Using string join() function with reversed() iterator. Return Value. Loop through list variable in Python and print each element one by one. Using Slicing to create a reverse copy of the string. Unlike Sets, lists in Python are ordered and have a definite count. The syntax of the reverse() method is: list.reverse() reverse() parameter . Python Program to Reverse String using For Loop. This method does not return any value but reverse the given object from the list. We will take input from the user and then will print the reverse of that number. A for loop is used for iterating over a sequence (that is either a list, a tuple, a dictionary, a set, or a string).. For Loops using range() One of Python’s built-in immutable sequence types is range(). Example: is_a_list = ['I', 'am', 'a', 'Python', 'developer', 'bye!'] This is less like the for keyword in other programming languages, and works more like an iterator method as found in other object-orientated programming languages.. With the for loop we can execute a set of statements, once for each item in a list, tuple, set etc. Note: It is suggested not to use this type of loops as it is a never ending infinite loop where the condition is always true and you have to forcefully terminate the compiler. It a very easy to Reverse words in a string python, you have to first Separate each word, then Reverse the word separated list and in the last join each word with space. Reverse the key-value pairs by looping the result of items() and switching the key and the value. Python List – Loop through items. Python Sets Access Set Items Add Set Items Remove Set Items Loop Sets … NA. Alternatively, we could build that same list using a list comprehension: my_list = [i for in range(0, 3)]. The reverse() method doesn't take any arguments. Syntax. Method #1: Using For loop . For loop in Python. Using loop. In Python, there is no C style for loop, i.e., for (i=0; i