Python List Checking and Verification Programs Last Updated : 06 Feb, 2025 Comments Improve Suggest changes Like Article Like Report Lists in Python are versatile, but often, we need to verify their contents, structure, or relationships with other lists. Whether we're checking for duplicates, order, existence of elements or special conditions, Python provides efficient ways to perform these checks.This article covers various list verification techniques, including:Checking if a list is empty, sorted or contains unique elements.Verifying element presence, conditions and comparisons between lists.Detecting subsets, consecutive elements and specific patterns.Here's the list of programs:Check if element exists in list in PythonCheck if a list is empty or not in PythonCheck If A Given Object Is A List Or NotCheck if two lists are identical in PythonCheck if all elements in List are sameCheck if a list is sorted or not in PythonCheck if one list is subset of otherCheck if all the values in a list that are greater than a given valueCheck if two lists have at-least one element commonCheck if list contains all unique elementsCheck if all elements in a list are identicalCheck if list contains consecutiveCheck If Value Exists in Python List of ObjectsCheck if all the values in a list are less than a given valueHow to Check if an Index Exists in Python ListsCheck if two given matrices are identical - PythonCheck if two lists have any element in commonCheck if the list contains three consecutive common numbersCheck if a Nested List is a Subset of Another Nested List - PythonCheck if Two Lists Have Same Elements regardless of Order - PythonCheck Whether Two Lists are Circularly IdenticalCheck if k occurs atleast n times in a list - PythonCheck for Whitespace in ListCheck if element exists in list in PythonCheck if a list is empty or not in PythonCheck if number is palindrome (one-liner)Check If A Given Object Is A List Or NotCheck if two lists are identical in PythonCheck for Sublist in ListCheck if all elements in List are sameCheck if a list is sorted or not in PythonCheck if one list is subset of otherCheck if all the values in a list that are greater than a given valueCheck if any element in list satisfies a conditionCheck if a list is contained in another listCheck if two lists have at-least one element commonCheck if list contains all unique elementsCheck if all elements in a list are identicalCheck if string matches regex listCheck if list contains consecutiveCheck if all the values in a list are less than a given valueHow to Check if an Index Exists in Python ListsCheck if all elements in list follow a conditionCheck if List contains elements in RangeCheck if any String is empty in listCheck if element is present in tuple of tuplesCheck if two given matrices are identical - PythonCheck if list is strictly increasingCheck if given words appear together in a list of sentenceCheck if two lists have any element in commonCheck if the list contains three consecutive common numbersCheck Similar elements in Matrix rowsCheck if a Nested List is a Subset of Another Nested List - PythonCheck if any element occurs n times in given listCheck if previous element is smaller in ListCheck if Two Lists Have Same Elements regardless of Order - PythonCheck if given string can be formed by concatenating string elements of listCheck whether all elements in a string list are numericCheck all strings are mutually disjointHow to Check if two lists are reverse equalCheck if list contain particular digitsCheck Whether Two Lists are Circularly IdenticalCheck for Nth index existence in listCheck for Descending Sorted ListCheck if any list element is present in TupleCheck if List is K increasingCheck if tuple and list are identicalCheck element for range occurrenceCheck if particular value is present corresponding to K keyCheck if Non-None values are contiguousCheck if list is MatrixCheck whether Characters of all string elements are in lexical order or notCheck whether the given List forms Contiguous Distinct Sub-Array or NotChecking if starting digits are similar in listCheck if suffix matches with any string in given listCheck if k occurs atleast n times in a list - PythonCheck alternate peak elements in ListCheck if elements index are equal for list elementsCheck if Splits are equalCheck if all tuples have element difference less than KCheck if given value occurs atleast k timesCheck whether the extracted element from each row of matrix can be in ascending orderCheck for None value in MatrixCheck if front digit is Odd in listCheck if elements to the left and right of the pivot are smaller or greater respectivelyCheck for Whitespace in List Comment More infoAdvertise with us Next Article Python List Checking and Verification Programs H harshitwn5p Follow Improve Article Tags : Python Python Programs Practice Tags : python Similar Reads Python program to check the validity of a Password In this program, we will be taking a password as a combination of alphanumeric characters along with special characters, and checking whether the password is valid or not with the help of a few conditions.Primary conditions for password validation:Minimum 8 characters.The alphabet must be between [a 3 min read Output of Python programs | Set 10 (Exception Handling) Pre-requisite: Exception Handling in PythonNote: All the programs run on python version 3 and above. 1) What is the output of the following program?Python data = 50 try: data = data/0 except ZeroDivisionError: print('Cannot divide by 0 ', end = '') else: print('Division successful ', end = '') try: 3 min read Check if email address valid or not in Python Given a string, write a Python program to check if the string is a valid email address or not. An email is a string (a subset of ASCII characters) separated into two parts by the @ symbol, a "personal_info" and a domain, that is [email protected]: Email Address Validator using re.match()P 3 min read Check if String is Empty or Not - Python We are given a string and our task is to check whether it is empty or not. For example, if the input is "", it should return True (indicating it's empty), and if the input is "hello", it should return False. Let's explore different methods of doing it with example:Using Comparison Operator(==)The si 2 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 Like