Explanation :In above code, we call a function to reverse a string, which iterates to every element and intelligentlyjoin each character in the beginningso as to obtain the reversed string. Using recursion # Python code to reverse a string # using recursion defreverse(s): iflen(s)==0: r...
# Program to explain reverse string or sentence# Using for loop# Reverse String without using reverse function# Define a functiondefreverse_for(string):# Declare a string variablerstring =''# Iterate string with for loopforxinstring:# Appending chars in reverse orderrstring = x + rstringretur...
print("Reversed String: ","".join([string1[i] for i in range(len(string1)-1, -1, -1)])) 2. String Reverse using for Loop By using the for loop to iterate the input string we can easily reverse the String in Python. We will concatenate reversed characters to another string object...
$ python3.7 -m timeit --number 100000 --unit usec 'import string_reverse' 'string_reverse.reverse_while_loop("ABç∂EF"*10)' 100000 loops, best of 5: 9.4 usec per loop $ python3.7 -m timeit --number 100000 --unit usec 'import string_reverse' 'string_reverse.reverse_recursion("AB...
Using Python for loop, you can iterate over characters in a string and append a character to the beginning of a new string. This will reverse the provided string. Reverse string using for loop a = 'Python' b = '' for c in a: b = c + b print(b) # nohtyP Reverse the string ...
In the function, we use a while loop to build the new string in reverse order. Python __reversed__ method The__reversed__magic method implementation should return a new iterator object that iterates over all the objects in the container in reverse order. ...
You can also take advantage ofsorted()to iterate through a string in sorted and reversed order: Python >>>forvowelinsorted(vowels,reverse=True):...print(vowel)...uoiea Thereverseargument tosorted()allows you to sort iterables, including strings, in descending order. So, if you ever need ...
$ python3.7 -m timeit --number 100000 --unit usec 'import string_reverse' 'string_reverse.reverse_while_loop("ABç∂EF"*10)' 100000 loops, best of 5: 9.4 usec per loop $ python3.7 -m timeit --number 100000 --unit usec 'import string_reverse' 'string_reverse.reverse_recursion("AB...
In this method, we will use reversed() method and iterate over the reversed iterator to get the reversed string. Python program to reverse a string using stack and reversed() method importsysdefpush(element,size,stack):'''this function is used to push the elementsin the stack and it will...
Python: How to iterate list in reverse order #1 for index, val in enumerate(reversed(list)): print len(list) - index - 1, val #2 def reverse_enum(L): for index in reversed(xrange(len(L))): yield index, L[index] L = ['foo', 'bar', 'bas']...