Python String isupper() Method

By Lenin Mishra

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Python String isupper() method

The isupper() method in Python returns True if all the characters are in upper case.

Only alphabet characters are taken into consideration. Numbers, symbols and spaces are not checked.

Syntax of isupper() method
string.isupper()

Returns True or False
Example
s = "HELLO, I AM PYLENIN"
print(s.isupper())
>>> True

s = "123456"
print(s.isupper())
>>> False

s = "I AM 29 YEARS old"
print(s.isupper())
>>> False

Check out other commonly used Python string methods.

  1. How to create a string in Python?
  2. How to access characters in a Python string?
  3. How to replace characters in a string in Python?
  4. How to concatenate strings in Python?
  5. How to iterate through a string in Python?
  6. Check if a Substring is Present in a Given String in Python
  7. Escape sequences in Python String
  8. Python String Formatting - The Definitive Guide