Python Error Handling Quiz

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Questions and Answers

In Python, which method can be used to add an item to the end of a list?

Remove

Reverse

Pop

Insert (correct)

What method in Python can be used to remove an item from a list without knowing its index?

Reverse

Pop (correct)

Insert

Sort

Which method can be used in Python to change the order of elements in a list?

Sort (correct)

Insert

Remove

Pop

What method in Python can be used to reverse the order of elements in a list?

Sort (B) Signup and view all the answers

Which method in Python is used to remove an element at a specified position from a list?

Remove (C) Signup and view all the answers

In Python, which method can be used to add multiple items to the end of a list?

Extend (A) Signup and view all the answers

In Python, which method can be used to remove an element from a list?

pop() (B) Signup and view all the answers

What is the purpose of the insert() method in Python for lists?

To add an element to a specific index in the list (D) Signup and view all the answers

Which method in Python can be used to reverse the order of elements in a list?

reverse() (D) Signup and view all the answers

When using the sort() method in Python, how are the elements typically arranged?

In ascending order (A) Signup and view all the answers

Which method in Python is used to remove an element from a specific index in a list and return it?

pop() (B) Signup and view all the answers

If a Python list contains [4, 2, 6, 1, 3], what would be the result after calling the sort() method on it?

[1, 2, 3, 4, 6] (D) Signup and view all the answers

What does the 'finally' block in Python do?

It is executed regardless of whether an exception occurs in the try block or not. (D) Signup and view all the answers

What would happen if you set `b` to 2 in the given code and input a character instead of a number?

The program would print 'invalid input'. (B) Signup and view all the answers

What is the purpose of modules in Python?

To break down large programs into smaller, manageable files. (A) Signup and view all the answers

What does the 'input()' function do in Python?

It reads a line from input (usually user), converts it to a string by removing the trailing newline, and returns it. (B) Signup and view all the answers

What is the output of the given code when `a=5`, `b=0`, and you give a string as input?

The output is 'the value can not be divided by zero division by zero' and 'resource closed'. (C) Signup and view all the answers

What does the 'int()' function do in Python?

It converts a string to an integer. (D) Signup and view all the answers

Study Notes

Iterating over a List

Method 1: Using for loop to iterate over a list, example: for item in list: print('college ', i, ' is ', item)
Method 2: Using for loop and range() function to iterate over a list, example: for i in range(length): print(list[i])
Method 3: Using while loop to iterate over a list, example: while i < length: print(list[i])

Mutability and List Operations

Mutable objects can be changed after creation, immutable objects cannot
Append: adds an item to a list, example: x.append(10)
Extend: appends a sequence to a list

Operator Precedence

Multiplication gets evaluated before addition
Parentheses () can override the precedence of arithmetic operators
Examples of operator precedence with different expressions

Comments in Python

Single-line comments start with # symbol
Multi-line comments use triple double quotes """ """ or single quotes `''' '''
Example of single-line and multi-line comments

Modules in Python

A Python module is a file containing Python code, including functions, classes, and variables
Modules can be used to break down large programs into smaller, manageable files
Example of creating and using a module

Exception Handling

Example of try-except-finally block to handle ZeroDivisionError
Example of try-except block to handle ValueError and generic Exception
Importance of exception handling in Python

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Description

Test your knowledge of Python error handling with this quiz. The quiz includes a code snippet that demonstrates handling a ZeroDivisionError and prompts users to modify the code to observe different outputs. See if you can predict the output in various scenarios!