Python Programming Fundamentals
6 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

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

  • Tuples are immutable while lists are mutable. (correct)
  • Tuples can store different data types while lists cannot.
  • Lists can store different data types while tuples cannot.
  • Lists are immutable while tuples are mutable.

    • What mode is used to append to the end of a file in Python?

  • a (correct)
  • w
  • r
  • x

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

  • To define a blueprint for creating objects
  • To handle syntax errors in the code
  • To handle exceptions and provide error handling code (correct)
  • To raise an exception manually

    • What is the concept of inheritance in object-oriented programming?

    <p>A child class inherits attributes and methods from a parent class</p> Signup and view all the answers

    What is the purpose of the readline() method in Python?

    <p>To read a single line from the file</p> Signup and view all the answers

    What is the concept of encapsulation in object-oriented programming?

    <p>Hiding internal implementation details from the outside world</p> Signup and view all the answers

    Study Notes

    Data Structures

    • Lists: ordered, mutable, and can store different data types
      • Indexing: access elements using square brackets [] and an index (starts at 0)
      • Slicing: extract a subset of elements using start:stop:step syntax
      • Methods: append(), insert(), extend(), remove(), pop(), sort(), reverse()
    • Tuples: ordered, immutable, and can store different data types
      • Similar to lists, but cannot be modified after creation
    • Dictionaries: unordered, mutable, and store key-value pairs
      • Access values using square brackets [] and a key
      • Methods: keys(), values(), items(), get(), update()
    • Sets: unordered, mutable, and store unique elements
      • Methods: add(), remove(), union(), intersection(), difference()

    File Input/Output

    • Reading files:
      • open() function: opens a file and returns a file object
      • read() method: reads the entire file as a string
      • readline() method: reads a single line from the file
      • readlines() method: reads all lines from the file as a list of strings
    • Writing files:
      • open() function: opens a file and returns a file object
      • write() method: writes a string to the file
      • writelines() method: writes a list of strings to the file
    • Modes:
      • r : read mode (default)
      • w : write mode (truncates the file if it exists)
      • a : append mode (adds to the end of the file)
      • x : create mode (fails if the file already exists)
      • b : binary mode (for reading and writing binary files)

    Exception Handling

    • Try-except block:
      • try clause: code that might raise an exception
      • except clause: code to handle the exception
    • Types of exceptions:
      • SyntaxError: syntax error in the code
      • NameError: undefined variable or function
      • TypeError: incorrect data type
      • IOError: input/output error
      • ValueError: invalid or unsupported value
    • Raising exceptions:
      • raise statement: manually raises an exception
      • assert statement: raises an exception if the condition is false

    Object-Oriented Programming

    • Classes:
      • Define a blueprint for creating objects
      • Contain attributes (data) and methods (functions)
    • Objects:
      • Instances of a class
      • Have their own set of attributes and methods
    • Inheritance:
      • A child class inherits attributes and methods from a parent class
      • Can also override or extend parent class behavior
    • Polymorphism:
      • Objects of different classes can be treated as objects of a common superclass
      • Methods can be overridden or overloaded to provide different behavior
    • Encapsulation:
      • Hiding internal implementation details from the outside world
      • Accessing attributes and methods through a controlled interface

    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 programming basics, including data structures, file input/output, exception handling, and object-oriented programming concepts.

    More Like This

    Use Quizgecko on...
    Browser
    Open
    Browser
    Browser