Python List Programs containing Strings Last Updated : 04 Mar, 2025 Comments Improve Suggest changes Like Article Like Report A list containing strings can be used to represent words, sentences or even lists of complex data in the form of text. The ability to efficiently manipulate, transform and query lists of strings is fundamental for many programming tasks, from text processing and data cleaning to building complex applications. In this article, we explore a variety of common problems and solutions related to lists containing strings.Article List:Convert string to a list in Python Python String join() Method Python Program to Convert a List to String Split string into list of characters in Python Converting all strings in a list to integers in Python How to sort a list of strings in Python Convert a String Representation of a List into a List Convert List of Integers to a List of Strings Convert a list of characters into a string Set 3 (Strings, Lists, Tuples, Iterations) Convert case of elements in a list of strings Create a List of Strings in Python Program to generate all possible valid IP addresses from given string Remove empty strings from list of strings Find Index containing String in ListRemove Duplicate Strings from a List in PythonConvert list of string to list of list Insert the string at the beginning of all items in a listConvert List of Tuples to List of Strings Converting list string to dictionary Remove all digits from a list of stringsConvert list of string into sorted list of integerSort all sublists in given list of stringsRemove character in a String except Alphabet Convert Each Item in the List to String using PythonSort a String in decreasing order of values associated after removal of values smaller than XReplacing Nth occurrence of multiple characters in a String with the given characterConcatenated string with uncommon characters in PythonRearrange a String According to the Given IndicesCheck if element exists in list in PythonConvert string to a list in Python Python Program to Convert a List to StringConverting all strings in a list to integers in Python Python program to find String in a List Removing newline character from string in Python Append String to list Test if string contains element from list How to sort a list of strings in Python Convert a String Representation of a List into a List Convert List of Integers to a List of String List of float to string conversionConvert a list of characters into a string Longest String in list Convert String Truth values to Boolean Swap elements in String list Convert case of elements in a list of strings Replace substring in list of strings Program to generate all possible valid IP addresses from given string Finding strings with given substring in list Remove Initial character in String List Remove empty strings from list of strings Ways to convert list of ASCII value to string Reverse All Strings in String List in Python Remove String from String List String Split including spaces Avoiding quotes while printing strings Sort given list of strings by part the numeric part of string Convert String list to ascii values Find Index containing String in List Python program to find occurrence to each character in given string Python - String Repetition and spacing in List Extract numbers from list of strings Check if string matches regex list Extract Strings with only Alphabets Append suffix/prefix to strings in list Splitting string to list of characters Tokenizing strings in list of strings Print all subsequences of a string in Python Python program for most frequent word in Strings List Remove given character from Strings list Reversed Split Strings Convert list of string to list of list Remove leading 0 from Strings List Alternate cases in String Insert the string at the beginning of all items in a list Convert Float String List to Float Values Remove suffix from string list Empty String to None Conversion Count Occurance of Substring in a List of Strings Convert List to delimiter separated String Ways to remove multiple empty spaces from string List Convert List of Tuples to List of Strings Convert String float to float list in Python Words lengths in String Python program to find the character position of Kth word from a list of strings Ways to sort list of strings in case-insensitive manner Smallest Length String Check if any String is empty in list Replace Substrings from String List Scramble strings in list Maximum String value length of Key Subtract String Lists in Python Remove last character in list of strings Length of shortest string in string list Extract words starting with K in String List Python program to convert a byte string to a list of integers Sort numeric strings in a list in Python Split String of list on K character in Python Filter a list based on the given list of strings Convert Integer Matrix to String Matrix Average String length in list Descending Sort String Numbers Min/Max value in float string list Filter the List of String whose index in second List contains the given Substring Converting list string to dictionary Convert List of lists to list of Strings Test if Substring occurs in specific position Split Sublist Strings First Non-Empty String in list Split flatten String List Splitting list on empty string Get summation of numbers in string list Replace String by Kth Dictionary value Splitting string to list of characters Conditional String Append Remove all digits from a list of strings Pair the consecutive character strings in a list Alternate Sort in String list Split strings and digits from string list List of tuples to String Remove List elements containing given String character Grouping similar substrings in list Summation of float string list Test String in Character List and vice-versa Find dictionary keys present in a Strings List Character indices Mapping in String List Sort String list by K character frequency Find Mixed Combinations of string and list Strings length summation Convert Strings to Uppercase in Dictionary value lists Substring removal in String list Convert list of string into sorted list of integer Multiply Integer in Mixed List of string and numbers Extract length of longest string in list Remove character in a String except Alphabet Convert Character Matrix to single String Filter String with substring at specific position Prefix frequency in string List Ways to split a string in different ways Sort by Rear Character in Strings List Convert string enclosed list to list String with most unique characters Concatenate Random characters in String List Split Strings on Prefix Occurrence Sort all sublists in given list of strings Differential Sort String Numbers and Alphabets Group list by first character of string Combine Strings to Matrix Check if given string can be formed by concatenating string elements of list Filter float strings from String list Disjoint Strings across Lists All possible concatenations in String List Convert mixed data types tuple list to string list Remove prefix strings from list Convert tuple records to single string Remove trailing/leading special characters from strings list Python Program to check whether all elements in a string list are numeric Python program to Check all strings are mutually disjoint Extract Nth words in Strings List Python program to find the sum of Characters ascii values in String List Python program to extract characters in given range from a string list Numeric Sort in Mixed Pair String List Python program to Sort a List of Strings by the Number of Unique Characters Remove duplicate words from Strings in List Convert String to matrix having K characters per row Get first index values in tuple of strings Convert list of strings to list of tuples in Python Sort given list of strings by part of string Removing strings from tuple Convert list of numerical string to list of Integers Alternate Strings Concatenation Strings with Maximum K length Extract Percentages from String Fill list characters in String Convert string List to Nested Character List Extract Indices of substring matches Convert list of strings and characters to list of characters Convert String list to Joined Single element Convert Strings to Character Matrix Filter Tuples with Strings of specific characters Merge list of tuple into list by joining the strings Python program to remove words that are common in two Strings Python program to convert tuple into list by adding the given string after every element Union Operation in two Strings Split list of strings into sublists based on length Reverse Order Sort in String List Remove front K characters from each string in String List Ways to merge strings into list Sort Strings by Case difference Concatenate string rows in Matrix Custom length tuples from String Remove strings with any non-required character Get Nth column elements in Tuple Strings Convert delimiter separated Mixed String to valid List Custom length tuples from String Concatenate Ranged Values in String list Remove strings with any non-required character Get Nth column elements in Tuple Strings Maximum of String Integer list Convert delimiter separated Mixed String to valid List Nth Column vertical string in Matrix Convert numeric String to integers in mixed List Count String occurrences in mixed list Lead and Trail padding of strings list Convert List of String List to String List Merge Tuple String List values to String Consecutive String Comparison Convert string list into multiple cases Python program to list Sort by Number value in String Construct string from character frequency tuple Consecutive element swapping in String Python Program to Removes Every Element From A String List Except For a Specified letter Sort each String in String list Concatenate N consecutive elements in String list Fill Strings for size K in Tuple List Remove Kth character from strings list Strings with similar front and rear character Python program to Mark duplicate elements in string Convert string tuples to list tuples Filter Supersequence Strings Group strings at particular element in list Sort Matrix by Maximum String Length Inverse Sorting String Python Program to check whether Characters of all string elements are in lexical order or not Splitting string list by strings Python program to Sort Strings by Punctuation count Python Program to Extract Strings with at least given number of characters from other list Lexicographically smallest string in mixed list Insert value after each k letters in given list of string Groups Strings on Kth character Python Program to print strings based on the list of prefix Categorize the given list by string size Substring concatenation by Separator Increment Numeric Strings by K Characters occurring in multiple Strings Embedded Numbers Summation in String List String List to Column Character Matrix Rows with K string in Matrix Extract Sorted Strings Python Program to print strings with repetitive occurrence of an element in a list List Strings frequency in Matrix Check if suffix matches with any string in given list Extract range of Consecutive Similar elements ranges from string list Extract Strings with a digit Test for desired String Lengths Merge consecutive empty Strings Extract Strings with Successive Alphabets in Alphabetical Order Python program to convert a list of strings with a delimiter to a list of tuple Specific case change in String List Extract String elements from Mixed Matrix Python program to sort strings by substring range Python program to concatenate Strings around K Formable Strings Count in Matrix Filter Similar Case Strings Find the sum of Length of Strings at given indices Merge Consecutive digits Strings Characters which Occur in More than K Strings Insert character in each duplicate string after every K elements All occurrences of Substring from the list of strings Group contiguous strings in List Character repetition string combinations Filter String Tuples if String lengths equals K Threshold Size Greater Strings Frequency Case Insensitive Strings Grouping Kth index character similar Strings Strings with all given List characters Rear character String categorization N sized substrings with K distinct characters Remove Rear K characters from String List Kth Non-None String from Rear Filter String with substring at specific position Concatenate Strings in the Given Order Duplicate substring removal from list Python program to count the pairs of reverse strings Split Numeric String into K digit integers Split strings in list with same prefix in all elements Convert Alternate String Character to IntegerPython Program to Group Strings by K length Using SuffixPython Program To Get Minimum Elements For String Construction Identical Strings Grouping Kth Valid String Ranged Maximum Element in String List Find all the strings that are substrings to the given list of strings Substring presence in Strings List String Matrix Concatenation Custom space size padding in Strings List Equidistant consecutive characters Strings Remove Redundant Substrings from Strings List K Character Split String Extract range sized strings Filter rows without Space Strings String concatenation in Heterogeneous list Incremental Slice concatenation in String list Filter above Threshold size Strings Python Program to convert String to Uppercase under the Given Condition Random Replacement of Word in String String Integer Product Construct N Range Equilength String list Extract Score list of String Sort on basis of reverse Strings Extract K sized strings Selective Merge in String list Reverse Range in String List Extract rows with Even length strings Filter Strings within ASCII range Sort String by Custom Integer SubstringsPython Program to Convert Matrix to String Comment More infoAdvertise with us Next Article Python List Programs containing Strings H harshitwn5p Follow Improve Article Tags : Python Python Programs Practice Tags : python Similar Reads Output of Python Programs | Set 19 (Strings) 1) What is the output of the following program? PYTHON3 str1 = '{2}, {1} and {0}'.format('a', 'b', 'c') str2 = '{0}{1}{0}'.format('abra', 'cad') print(str1, str2) a) c, b and a abracad0 b) a, b and c abracadabra c) a, b and c abracadcad d) c, b and a abracadabra Ans. (d) Explanation: String function 3 min read Find Length of String in Python In this article, we will learn how to find length of a string. Using the built-in function len() is the most efficient method. It returns the number of items in a container. Pythona = "geeks" print(len(a)) Output5 Using for loop and 'in' operatorA string can be iterated over, directly in a for loop. 2 min read String Interning in Python String interning is a memory optimization technique used in Python to enhance the efficiency of string handling. In Python, strings are immutable, meaning their values cannot be changed after creation. String interning, or interning strings, involves reusing existing string objects rather than creat 2 min read Output of Python programs | Set 7 Prerequisite - Strings in Python Predict the output of the following Python programs. These question set will make you conversant with String Concepts in Python programming language. Program 1Python var1 = 'Hello Geeks!' var2 = "GeeksforGeeks" print "var1[0]: ", var1[0] # statement 1 print "var2[1:5 3 min read Output of Python programs | Set 8 Prerequisite - Lists in Python Predict the output of the following Python programs. Program 1 Python list = [1, 2, 3, None, (1, 2, 3, 4, 5), ['Geeks', 'for', 'Geeks']] print len(list) Output: 6Explanation: The beauty of python list datatype is that within a list, a programmer can nest another list, 3 min read Iterate over words of a String in Python In this article, we’ll explore different ways to iterate over the words in a string using Python.Let's start with an example to iterate over words in a Python string:Pythons = "Learning Python is fun" for word in s.split(): print(word)OutputLearning Python is fun Explanation: Split the string into w 2 min read Python program to check if a given string is Keyword or not This article will explore how to check if a given string is a reserved keyword in Python. Using the keyword We can easily determine whether a string conflicts with Python's built-in syntax rules.Using iskeyword()The keyword module in Python provides a function iskeyword() to check if a string is a k 2 min read Output of Python program | Set 5 Predict the output of the following programs: Program 1: Python def gfgFunction(): "Geeksforgeeks is cool website for boosting up technical skills" return 1 print (gfgFunction.__doc__[17:21]) Output:coolExplanation: There is a docstring defined for this method, by putting a string 3 min read Output of Python Programs | Set 22 (Loops) Prerequisite: LoopsNote: Output of all these programs is tested on Python3 1. What is the output of the following?Python mylist = ['geeks', 'forgeeks'] for i in mylist: i.upper() print(mylist) [‘GEEKS’, ‘FORGEEKS’].[‘geeks’, ‘forgeeks’].[None, None].Unexpected Output: 2. [‘geeks’, ‘forgeeks’]Explana 2 min read How to Initialize a String in Python In Python, initializing a string variable is straightforward and can be done in several ways. Strings in Python are immutable sequences of characters enclosed in either single quotes, double quotes or triple quotes. Let’s explore how to efficiently initialize string variables.Using Single or Double 2 min read Like