Check if a string is empty in Python

This post will discuss how to check if a string is empty in Python.

1. Using `==` operator

A simple solution is to use the == operator to compare the given string with an empty string.

if __name__ == '__main__':

s = ""

if s == "":

print("The string is empty")

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Alternatively, you may use the != operator to check for a non-empty string:

if __name__ == '__main__':

s = ""

if s != "":

print("The string is not empty")

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2. Using `not` operator

The Pythonic way to check for an empty string is with the not operator as follows:

if __name__ == '__main__':

s = ""

if not s:

print("The string is empty")

else:

print("The string is not empty")

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To check for non-empty string, you may do:

if __name__ == '__main__':

s = ""

if s:

print("The string is not empty")

else:

print("The string is empty")

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3. Using `len()` function

Finally, you may use the len() function to check for an empty string that returns the length of a string.

if __name__ == '__main__':

s = ""

if len(s) > 0:

print("The string is empty")

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To check for non-empty strings, you can do:

if __name__ == '__main__':

s = ""

if len(s):

print("The string is not empty")

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That’s all about determining whether a string is empty in Python.

Check if a string is empty in Python

1. Using == operator

2. Using not operator

3. Using len() function

Share this:

1. Using `==` operator

2. Using `not` operator

3. Using `len()` function