String capitalize() Method in Python Last Updated : 09 May, 2025 Comments Improve Suggest changes Like Article Like Report The capitalize() method in Python is used to change the first letter of a string to uppercase and make all other letters lowercase. It is especially useful when we want to ensure that text follows title-like capitalization, where only the first letter is capitalized.Let's start with a simple example to understand the capitalize() functions: Python s = "hello WORLD" res = s.capitalize() print(res) OutputHello world Explanation: In this example, capitalize() method converts the first character "h" to uppercase and change the rest of characters to lowercase.Syntax of capitalize() Methods.capitalize()Parameters:NoneReturn Value: A new string with the first character capitalized and all others in lowercase.Note: The original string remains unchanged (strings are immutable in Python).Examples of capitalize() MethodExample 1: Multiple WordsThe capitalize() method only affects the first letter of the string and doesn’t capitalize each word in multi-word strings. Python s = "multiple WORDS IN a String" res = s.capitalize() print(res) OutputMultiple words in a string Explanation: Only the first character of the entire string is capitalized.All other letters are lowercased.capitalize() does not capitalize each word individually (unlike title()).Example 2: When the First Character is a NumberWhen the first character of a string is a number, capitalize() method does not alter it because it only affects alphabetical characters. Instead, it will simply convert any following alphabetical characters to lowercase. Python s = "123hello WORLD" res = s.capitalize() print(res) Output123hello world Explanation:Since the first character is a number, it’s left unchanged.The rest of the string is still lowercased.capitalize() skips non-alphabet characters for capitalization.Related Article: upper() Methodlower() MethodString slicing Comment More info S Striver Follow Improve Article Tags : Misc Python python-string Explore Python FundamentalsPython Introduction 3 min read Input and Output in Python 4 min read Python Variables 5 min read Python Operators 5 min read Python Keywords 2 min read Python Data Types 8 min read Conditional Statements in Python 3 min read Loops in Python - For, While and Nested Loops 7 min read Python Functions 5 min read Recursion in Python 6 min read Python Lambda Functions 5 min read Python Data StructuresPython String 5 min read Python Lists 5 min read Python Tuples 4 min read Python Dictionary 3 min read Python Sets 6 min read Python Arrays 7 min read List Comprehension in Python 4 min read Advanced PythonPython OOP Concepts 11 min read Python Exception Handling 5 min read File Handling in Python 4 min read Python Database Tutorial 4 min read Python MongoDB Tutorial 2 min read Python MySQL 9 min read Python Packages 12 min read Python Modules 7 min read Python DSA Libraries 15 min read List of Python GUI Library and Packages 3 min read Data Science with PythonNumPy Tutorial - Python Library 3 min read Pandas Tutorial 6 min read Matplotlib Tutorial 5 min read Python Seaborn Tutorial 15+ min read StatsModel Library- Tutorial 4 min read Learning Model Building in Scikit-learn 8 min read TensorFlow Tutorial 2 min read PyTorch Tutorial 7 min read Web Development with PythonFlask Tutorial 8 min read Django Tutorial | Learn Django Framework 7 min read Django ORM - Inserting, Updating & Deleting Data 4 min read Templating With Jinja2 in Flask 6 min read Django Templates 7 min read Python | Build a REST API using Flask 3 min read How to Create a basic API using Django Rest Framework ? 4 min read Python PracticePython Quiz 3 min read Python Coding Practice 1 min read Python Interview Questions and Answers 15+ min read Like