NameError – identifier is not found in the namespace

This code defines two variables a and b and assigns values 5 and 0 to them respectively.

The code then tries to evaluate the expression a + b + c, where c is not defined. The result of such an operation would raise a NameError, as the variable c is not defined.

To handle such exceptions, the code uses a try-except block to catch the error. In case a NameError is raised, the code inside the except block will be executed, which prints the error message using e. The e is an instance of the exception, which holds the error message that is generated when the exception is raised.

The try-except block allows the code to continue executing even in the presence of errors, without crashing the program. It provides a way to handle exceptions and provides a more user-friendly output.

a, b = 5, 0

try:
    result = a + b + c
except NameError as e:
    print(e)

Output

name 'c' is not defined