There are some methods we have effectively tested to get the length of a string in Python. Follow the article to better understand.
What is the length of a String in Python?
The length of a string is the number of characters that make up the string. Example: I have a string “learnshareit”. You can also easily count the number of characters inside this string as 12.
Note: the string length is different from the internal index. The most extensive index in the string is equal to the length minus 1 unit.
Get the length of a string in Python
Use len() method
You can use the len() function to get the length of string. Len() is a built-in function that counts the number of characters in the argument. The argument passed to the function can be a string or a list.
Syntax:
len(str)
Parameters:
- str: string to find the length.
Example:
- Create a string.
- Use the len() function to get the string length.
myStr = "hello! My name is John. I am 28. My current job is a developer"
# Use the len() function to get the string length
result = len(myStr)
print("The number of characters in the string is:", result)Output:
The number of characters in the string is: 62Use For loop
If you don’t want to use the len() function, then you can use a for loop to count the number of characters in the string.
Example:
- Create a string.
- Use the for loop to get the string length.
myStr = "hello! My name is John. I am 28. My current job is a developer"
# Create counter variable.
n = 0
# Use for loop.
for i in myStr:
n += 1
print("The number of characters in the string is:", n)Output:
The number of characters in the string is: 62After each iteration through the string, the variable ‘n’ will increase by one until the end.
Use the length_hint() function
In Python ‘operator’ module has a built-in length_hint() function. The length_hint() function returns the length for the ‘obj’ object.
Syntax:
length_hint(obj)
Parameters:
- object: can be string, list, dict, tuple, etc.
Note: Declare the operator module before using the function.
Example:
- Create a string.
- Use the
length_hint() function to get the string length.
from operator import length_hint
myString = ("hello! My name is John. I am 28. My current job is a developer")
# Use the length_hint() function to get the string length
result = length_hint(myString)
print ("The number of characters in the string is:", result) Output:
The number of characters in the string is: 62Summary
Please leave a comment below if you have any questions about this article. I will support your questions.
Thank you for reading!
Maybe you are interested:
- Remove multiple spaces from a string in Python
- Split a string by comma in Python
- Check if an object is iterable in Python
My name is Jason Wilson, you can call me Jason. My major is information technology, and I am proficient in C++, Python, and Java. I hope my writings are useful to you while you study programming languages.
Name of the university: HHAU
Major: IT
Programming Languages: C++, Python, Java
