NameError: name ‘false’ is not defined. Did you mean: ‘False’?

In python NameError: name ‘false’ is not defined. Did you mean: ‘False’? we face this error message when we misspell False (capital F) Booleans as false (small F), and then python shows this error message. If you want to fix this error just type False (capital F) instead of false (small f), For more clarification see the below example.

Wrong Code

n = int(input("Check this number:"))

def prime(number):
    for i in range(2, number):
        is_prime = True
        for i in range(2, number):
            if number % i == 0:
                is_prime = false
        if is_prime:
            print("It's a prime number.")
        else:
            print("It's not a prime number.")


prime(number = n)

Error Massage

Check this number:25
Traceback (most recent call last):
  File "/home/kali/python/webproject/simple_projects/prime_number/main.py", line 15, in <module>
    prime(number = n)
  File "/home/kali/python/webproject/simple_projects/prime_number/main.py", line 8, in prime
    is_prime = false
NameError: name 'false' is not defined. Did you mean: 'False'?

Wrong code line

                is_prime = false

Correct code line

                is_prime = False

• Wrong action: false (small f).
• Correct action: False (capital F).

Entire Correct Code line

n = int(input("Check this number:"))

def prime(number):
    for i in range(2, number):
        is_prime = True
        for i in range(2, number):
            if number % i == 0:
                is_prime = False
        if is_prime:
            print("It's a prime number.")
        else:
            print("It's not a prime number.")


prime(number = n)

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