Python Basics: File I/O, Data Structures, OOP, and Exception Handling
6 Questions
0 Views

Python Basics: File I/O, Data Structures, OOP, and Exception Handling

Created by
@LuxuryRomanticism

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the purpose of the open() function in Python?

  • To write content to a file
  • To close a file
  • To read the entire file content
  • To open a file and return a file object (correct)

    • What is the main difference between a list and a tuple in Python?

  • Lists are used for numbers, tuples are used for strings
  • Lists are ordered, tuples are unordered
  • Lists are used for strings, tuples are used for numbers
  • Lists are mutable, tuples are immutable (correct)

    • What is the purpose of a try block in Python?

  • To enclose the code that may raise an exception (correct)
  • To handle an exception
  • To raise a custom exception
  • To signal an error or unexpected condition

    • What is the main purpose of a class in object-oriented programming?

    <p>To define a blueprint for creating objects</p> Signup and view all the answers

    What is the purpose of the 'a' mode when opening a file in Python?

    <p>To append to a file</p> Signup and view all the answers

    What is the purpose of the raise statement in Python?

    <p>To raise a custom exception</p> Signup and view all the answers

    Study Notes

    File Input/Output

    • Reading Files:
      • open() function to open a file and return a file object
      • read() method to read the entire file content
      • readline() method to read a single line
      • readlines() method to read multiple lines
    • Writing Files:
      • open() function to open a file in write mode ('w')
      • write() method to write content to the file
    • ** Modes:**
      • 'r' for reading
      • 'w' for writing (truncates the file if it exists)
      • 'a' for appending
      • 'r+' for reading and writing
      • 'rb' for reading binary files
      • 'wb' for writing binary files

    Data Structures

    • Lists:
      • Ordered collection of items
      • Can be indexed and sliced
      • Can be modified (mutable)
    • Tuples:
      • Ordered, immutable collection of items
      • Can be indexed and sliced
    • Dictionaries:
      • Unordered collection of key-value pairs
      • Can be modified (mutable)
    • Sets:
      • Unordered collection of unique items
      • Can be modified (mutable)

    Object-Oriented Programming

    • Classes:
      • Define a blueprint for creating objects
      • Can have attributes (data) and methods (functions)
    • Objects:
      • Instances of classes
      • Have their own attributes and methods
    • Inheritance:
      • A child class can inherit attributes and methods from a parent class
      • Can also override or extend the parent class's behavior

    Exception Handling

    • Try-Except Block:
      • try block to enclose the code that may raise an exception
      • except block to handle the exception
    • Types of Exceptions:
      • SyntaxError for syntax errors
      • TypeError for type-related errors
      • ValueError for value-related errors
      • RuntimeError for runtime errors
    • Raising Exceptions:
      • raise statement to raise a custom exception
      • Can be used to signal an error or unexpected condition

    Studying That Suits You

    Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

    Quiz Team

    Description

    Test your knowledge of Python fundamentals, including file input/output, data structures like lists and dictionaries, object-oriented programming concepts, and exception handling techniques.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser