How to find the length of a string in Python?

Question

Jayant Kumar · Accepted Answer

Table of Contents
Introduction
Determining the length of a string in Python is a fundamental operation that can be useful for various text processing tasks. Python provides a built-in function called len() to easily find the length of a string. This guide explains how to use the len() function to find the length of a string and provides practical examples.
Method to Find the Length of a String
1. Using the **len()** Function

**len()** Function: The len() function is a built-in Python function that returns the number of characters in a string. It is the most straightforward and efficient way to get the length of a string.

Example:
# Sample string
text = "Hello, world!"

# Find the length of the string
length = len(text)
print(length)  # Output: 13

Practical Examples
Example : Finding the Length of a Basic String
# Sample string
message = "Python programming"

# Get the length of the string
message_length = len(message)
print(f"The length of the message is {message_length}.")  # Output: The length of the message is 18.

Example : Finding the Length of a String with Special Characters
# Sample string with special characters
special_chars = "123!@#$$%^&#x26;*()"

# Get the length of the string
special_length = len(special_chars)
print(f"The length of the special characters string is {special_length}.")  # Output: The length of the special characters string is 12.

Example : Finding the Length of an Empty String
# Sample empty string
empty_string = ""

# Get the length of the empty string
empty_length = len(empty_string)
print(f"The length of the empty string is {empty_length}.")  # Output: The length of the empty string is 0.

Example : Finding the Length of a String with Unicode Characters
# Sample string with Unicode characters
unicode_string = "你好，世界"  # "Hello, World" in Chinese

# Get the length of the Unicode string
unicode_length = len(unicode_string)
print(f"The length of the Unicode string is {unicode_length}.")  # Output: The length of the Unicode string is 7.

Conclusion
Finding the length of a string in Python is efficiently accomplished using the len() function. This function is versatile and works with various types of strings, including those with special characters and Unicode characters. Understanding how to use len() will help you effectively handle and manipulate strings in Python.

How to find the length of a string in Python?

Table of Contents

Introduction

Method to Find the Length of a String

1. Using the `len()` Function

Example:

Practical Examples

Example : Finding the Length of a Basic String

Example : Finding the Length of a String with Special Characters

Example : Finding the Length of an Empty String

Example : Finding the Length of a String with Unicode Characters

Conclusion

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