When are the following built-in exceptions raised? Give examples to support your answers.

1. ImportError
2. IOError
3. NameError
4. ZeroDivisionError

1. ImportError — It is raised when the requested module definition is not found.

Example :

import module

Output

ModuleNotFoundError: No module named 'module'

2. IOError — It is raised when the file specified in a program statement cannot be opened.

Example :

file = open("file1.txt", "r")

Output

FileNotFoundError: [Errno 2] No such file or directory: 'file1.txt'

3. NameError — It is raised when a local or global variable name is not defined.

Example :

print(var+40)

Output

NameError: name 'var' is not defined.

4. ZeroDivisionError — It is raised when the denominator in a division operation is zero.

Example :

print(50/0)

Output

ZeroDivisionError: division by zero