video • Python 3.9—3.13 • June 12, 2023 How can you loop over an iterable in reverse?Reversing sequences with slicingIf you're working with a list, a string, or any other sequence in Python, you can reve
The first and easiest way to reverse a string in python is to use slicing. We can create a slice of any string by using the syntaxstring_name[ start : end : interval ]where start and end are start and end index of the sub string which has to be sliced from the string. The interva...
numbers=[1,2,3,4,5]squared_reversed=[num2fornuminnumbers[::-1]]print(squared_reversed)# Output: [25, 16, 9, 4, 1] Here,squared_reversedis a list of the squared values ofnumbers,but in reverse order. List reversing with other Python features ...
The [::-1] syntax in the above code tells Python to slice the entire string and step backward by -1, which effectively reverses the string. Reversing a String Using the reversed() Function Another way to reverse a string in Python is by using the reversed() function. The reversed() fun...
1.2 Reverse an Array using the For Loop in Python You can use afor looptoiterate the given arrayin reversing order. In general, therange()function can generate the sequence of numbers, if you set the step param with a negative value, it can generate a sequence of decreasing numbers. ...
Using loop # Python code to reverse a string # using loop defreverse(s): str="" foriins: str=i+str returnstr s="Geeksforgeeks" print("The original string is : ",end="") print(s) print("The reversed string(using loops) is : ",end="") ...
Python Slice Operator Syntax Slice() returns a slice of the object for a specified sequence (string, tuple, list, range, or bytes). Slicing allows you to write clear, concise and readable code. Python slice() Syntax slice(start, stop, step) Where: start (optional): the starting inte...
0 - This is a modal window. No compatible source was found for this media. importarrayasarr a=arr.array('i',[10,5,15,4,6,20,9])b=arr.array('i')foriinrange(len(a)-1,-1,-1):b.append(a[i])print(a)print(b) It will produce the followingoutput− ...
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and the rest is the same as the reverse() function works. Another and last option for reversing the elements in the list in Python is to use slicing. Slicing is the technique used for reversing elements that uses its own syntax, but it creates another copy of the original list and consum...