Question

How to check if a string is blank (empty, none, or contains only whitespace) in Python

Answer 1

def is_blank_or_empty(string):
    # Check for None or empty string
    if string is None or string == "":
        return True

    # Check if the string contains only whitespace
    return all(char.isspace() for char in string)

# Example usage
test_cases = [None, "", "   ", "abc"]

for i, test in enumerate(test_cases, 1):
    print(f"Test{i}: {is_blank_or_empty(test)}")



'''
run:

Test1: True
Test2: True
Test3: True
Test4: False

'''

 

70+ SQL courses for beginners and professionals