Python Basics
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Questions and Answers

¿Cuál es el propósito de una variable en Python?

  • Asignar un nombre a un valor (correct)
  • Comparar dos valores
  • Realizar operaciones aritméticas
  • Almacenar solo números enteros

    • ¿Cuál es el tipo de dato que representa una secuencia de caracteres?

  • Boolean
  • Float
  • Int
  • String (correct)

    • ¿Cuál es el operador de exponentiation en Python?

  • &&
  • ^
  • ** (correct)
  • ++

    • ¿Cuál es el tipo de colección que es ordenada e inmutable?

    <p>Tupla</p> Signup and view all the answers

    ¿Cuál es el operador de igualdad en Python?

    <p>==</p> Signup and view all the answers

    ¿Cuál es el tipo de dato que representa un valor verdadero o falso?

    <p>Boolean</p> Signup and view all the answers

    Study Notes

    Variables and Data Types

    • In Python, a variable is a name given to a value.
    • Variables can store different data types, including:
      • Integers (int): whole numbers, e.g. 1, 2, 3
      • Floats (float): decimal numbers, e.g. 3.14, -0.5
      • Strings (str): sequences of characters, e.g. "hello", 'hello' (note: strings can be enclosed in single or double quotes)
      • Boolean (bool): true or false values
      • Lists (list): ordered collections of values, e.g. [1, 2, 3], ["a", "b", "c"]
      • Tuples (tuple): ordered, immutable collections of values, e.g. (1, 2, 3), ("a", "b", "c")
      • Dictionaries (dict): unordered collections of key-value pairs, e.g. {"name": "John", "age": 30}

    Operators and Control Structures

    • Arithmetic operators:
      • Addition: a + b
      • Subtraction: a - b
      • Multiplication: a * b
      • Division: a / b
      • Modulus: a % b
      • Exponentiation: a ** b
    • Comparison operators:
      • Equal: a == b
      • Not equal: a!= b
      • Greater than: a > b
      • Less than: a < b
      • Greater than or equal to: a >= b
      • Less than or equal to: a <= b
    • Logical operators:
      • And: a and b
      • Or: a or b
      • Not: not a
    • Control structures:
      • Conditional statements: if, elif, else
      • Loops: for, while

    Functions

    • Functions are blocks of code that can be called multiple times with different inputs.
    • Functions can take arguments, which are values passed to the function when it is called.
    • Functions can return values, which can be used by the calling code.
    • Functions can be defined with the def keyword, e.g. def greet(name): print("Hello, " + name + "!")

    Modules and Packages

    • Modules are pre-written code libraries that can be imported into a Python script.
    • Modules can be imported using the import statement, e.g. import math
    • Packages are collections of modules that can be imported together.
    • Packages can be imported using the import statement, e.g. import tkinter as tk

    Object-Oriented Programming

    • Classes define objects and their properties and behaviors.
    • Classes can inherit properties and behaviors from parent classes.
    • Objects are instances of classes, and can have their own properties and behaviors.
    • Objects can be created using the () operator, e.g. my_object = MyClass()

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    Test your knowledge of Python fundamentals, including variables, data types, operators, control structures, functions, modules, and object-oriented programming.

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