sys module for information

Lesson 9 of 16 in Coddy's Exception Handling in Python course.

exc_info function from sys module prints Exception details.

import sys
try:
	#code which can cause exception
except:
	print(sys.exc_info())

Output:- ( class_name, standard_message, traceback_object )

It returns a tuple containing three values as above.

Challenge

Easy

A function takes a key as argument. Complete function to fetch value for entered key. If key not found in dictionary, keyError will be raised. Handle it and print exception class name and standard message by using above way. Else, print value in else block.

Try it yourself

age={
    'Peter':23,
    'Lopez':24,
    'Glenn':27,
    'Jay':29
}
def fetch(key):
    #your code goes here

All lessons in Exception Handling in Python

1Introduction to Exceptions

What is Exception ?Exception vs Error

4Customization/best practices

Customize Tracebacks

2Exception Handling

try-except else Finally Printing Exception message Printing Exception Name Handling Multiple Exceptionssys module for information

3User-defined Exceptions

Types of Exceptions Raising an Exception User Defined Exception Exception Handling Exercise- 1 Exception Handling Example-2 Exception Handling Example-3