Python | Remove the given substring from end of string Last Updated : 13 Mar, 2023 Comments Improve Suggest changes Like Article Like Report Sometimes we need to manipulate our string to remove extra information from the string for better understanding and faster processing. Given a task in which the substring needs to be removed from the end of the string using Python. Remove the substring from the end of the string using Slicing In this method, we are using string slicing to remove the substring from the end. Python3 text = 'GeeksforGeeksWorld' sub = "World" # find len of suffix le = len(sub) # slice out from string text = text[:-le] print(text) Output: GeeksforGeeksRemove the substring from the end of the string using the Naive Method In this method, we are using the Python loop and append method to remove the substring from the end. Python3 # Initialising string ini_string = 'xbzefdgstb' # initializing string sstring = 'stb' # printing initial string and substring print ("initial_strings : ", ini_string, "\nsubstring : ", sstring) # removing substring from end # of string using Naive Method if ini_string.endswith(sstring): res = ini_string[:-(len(sstring))] # printing result print ("resultant string", res) Outputinitial_strings : xbzefdgstb substring : stb resultant string xbzefdgRemove the substring from the end of the string using sub() method In this method, we are using string regex sub() to remove the substring from the end. Python3 import re # Initialising string ini_string = 'xbzefdgstb' # initializing string sstring = 'stb' # printing initial string and substring print ("initial_strings : ", ini_string, "\nsubstring : ", sstring) # removing substring from end # of string using sub Method if ini_string.endswith(sstring): res = re.sub(sstring, '', ini_string) # printing result print ("resultant string", res) Outputinitial_strings : xbzefdgstb substring : stb resultant string xbzefdgRemove the substring from the end of the string using replace() method In this method, we are using the string replace() function to remove the substring from the end. Python3 # Initialising string ini_string = 'xbzefdgstb' # initializing string sstring = 'stb' # printing initial string and substring print ("initial_strings : ", ini_string, "\nsubstring : ", sstring) # removing substring from end # of string using replace Method if ini_string.endswith(sstring): res = ini_string.replace(sstring, '') # printing result print ("resultant string", res) Outputinitial_strings : xbzefdgstb substring : stb resultant string xbzefdgUsing rfind() and slicing rfind() returns the index of the last occurrence of the substring in the string. Then we slice the string from the beginning up to the index of the substring. Python3 text = 'GeeksforGeeksWorld' sub = "World" # find the index of the substring index = text.rfind(sub) # slice out from the string text = text[:index] print(text) #This code is contributed by Edula Vinay Kumar Reddy OutputGeeksforGeeks Time complexity: O(n), where n is the length of the string.Auxiliary Space: O(1) Comment More infoAdvertise with us Next Article Python | Remove the given substring from end of string garg_ak0109 Follow Improve Article Tags : Python Python Programs Python string-programs Practice Tags : python Similar Reads Python - Remove substring list from String Our task is to remove multiple substrings from a string in Python using various methods like string replace in a loop, regular expressions, list comprehensions, functools.reduce, and custom loops. For example, given the string "Hello world!" and substrings ["Hello", "ld"], we want to get " wor!" by 3 min read Python - Remove after substring in String Removing everything after a specific substring in a string involves locating the substring and then extracting only the part of the string that precedes it. For example we are given a string s="Hello, this is a sample string" we need to remove the part of string after a particular substring includin 3 min read Python - Get all substrings of given string A substring is any contiguous sequence of characters within the string. We'll discuss various methods to extract this substring from a given string by using a simple approach. Using List Comprehension :List comprehension offers a concise way to create lists by applying an expression to each element 3 min read Remove URLs from string in Python A regular expression (regex) is a sequence of characters that defines a search pattern in text. 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