Plataforma de e-learning
Parte de la sección Object Oriented Programming del Journey de Python de Coddy — lección 61 de 64.
Desafío
DifícilEn este desafío, implementarás un sistema de plataforma de e-learning orientado a objetos.
course.py- Implementa la claseCoursestudent.py- Implementa la claseStudentinstructor.py- Implementa la claseInstructor
Hoja de referencia
Esta lección se centra en la implementación de un sistema de plataforma de e-learning orientado a objetos con tres clases principales:
- Clase Course - Representa los cursos educativos en la plataforma
- Clase Student - Representa a los estudiantes que pueden inscribirse en los cursos
- Clase Instructor - Representa a los profesores que pueden crear y gestionar cursos
El sistema demuestra los principios de la programación orientada a objetos al modelar entidades del mundo real como clases con sus propias propiedades y métodos.
Pruébalo tú mismo
from course import Course
from student import Student
from instructor import Instructor
# Manejador de casos de prueba
test_case = input()
if test_case == "course_creation":
# Probar la creación de cursos con diferentes capacidades
course1 = Course("Python 101", "Introduction to Python", 20)
course2 = Course("Data Science", "Advanced data analysis techniques")
print(f"Course 1: {course1.title}, Max Capacity: {course1.max_capacity}")
print(f"Course 2: {course2.title}, Max Capacity: {course2.max_capacity}")
print(f"Initial student count: {len(course1.students)}")
elif test_case == "student_enrollment":
# Probar el proceso de inscripción de estudiantes
course = Course("Python 101", "Introduction to Python", 2)
student1 = Student("Alice", "alice@example.com")
student2 = Student("Bob", "bob@example.com")
student3 = Student("Charlie", "charlie@example.com")
# Inscribir estudiantes
result1 = student1.enroll(course)
result2 = student2.enroll(course)
result3 = student3.enroll(course) # Debería fallar (capacidad)
print(f"Enrollment 1 result: {result1}")
print(f"Enrollment 2 result: {result2}")
print(f"Enrollment 3 result: {result3}")
# Intentar inscribir al mismo estudiante dos veces
result4 = student1.enroll(course)
print(f"Re-enrollment result: {result4}")
# Verificar los estados del curso y del estudiante
print(f"Course has {len(course.students)} students")
print(f"Student 1 has {len(student1.enrolled_courses)} enrolled courses")
elif test_case == "student_unenrollment":
# Probar el proceso de desinscripción de estudiantes
course = Course("Python 101", "Introduction to Python")
student = Student("Alice", "alice@example.com")
# Inscribir y luego desinscribir
student.enroll(course)
print(f"Before unenroll: Course has {len(course.students)} students")
print(f"Before unenroll: Student has {len(student.enrolled_courses)} courses")
result = student.unenroll(course)
print(f"Unenrollment result: {result}")
print(f"After unenroll: Course has {len(course.students)} students")
print(f"After unenroll: Student has {len(student.enrolled_courses)} courses")
# Intentar desinscribir de nuevo
result = student.unenroll(course)
print(f"Second unenrollment result: {result}")
elif test_case == "course_completion":
# Probar el proceso de finalización de un curso
course = Course("Python 101", "Introduction to Python")
student = Student("Alice", "alice@example.com")
# Inscribir y completar
student.enroll(course)
print(f"Before completion: Enrolled in {len(student.enrolled_courses)} courses")
print(f"Before completion: Completed {len(student.completed_courses)} courses")
result = student.complete_course(course)
print(f"Completion result: {result}")
print(f"After completion: Enrolled in {len(student.enrolled_courses)} courses")
print(f"After completion: Completed {len(student.completed_courses)} courses")
# Verificar el estado del curso
print(f"Course has {len(course.students)} active students")
print(f"Course has {len(course.completed_students)} completed students")
elif test_case == "instructor_assignment":
# Probar la asignación de instructores
course = Course("Python 101", "Introduction to Python")
instructor = Instructor("Dr. Smith", "smith@example.edu", "Computer Science")
print(f"Before assignment: Instructor has {len(instructor.courses)} courses")
print(f"Before assignment: Course instructor is {course.instructor}")
result = instructor.assign_to_course(course)
print(f"Assignment result: {result}")
print(f"After assignment: Instructor has {len(instructor.courses)} courses")
print(f"After assignment: Course instructor is {course.instructor.name}")
elif test_case == "course_management":
# Probar la gestión de capacidad del curso
course = Course("Limited Course", "Test capacity", 2)
student1 = Student("Alice", "alice@example.com")
student2 = Student("Bob", "bob@example.com")
student3 = Student("Charlie", "charlie@example.com")
# Llenar el curso
student1.enroll(course)
student2.enroll(course)
result = student3.enroll(course) # Debería fallar
print(f"Enrolling to full course: {result}")
# Hacer espacio desinscribiendo
student1.unenroll(course)
result = student3.enroll(course) # Debería tener éxito ahora
print(f"Enrolling after unenrollment: {result}")
# Verificar el estado final
print(f"Final students in course: {len(course.students)}")
print(f"Students are: {[s.name for s in course.students]}")
elif test_case == "integrated_test":
# Probar todo el sistema funcionando en conjunto
# Crear cursos
python_course = Course("Python 101", "Introduction to Python", 3)
data_course = Course("Data Science", "Advanced data analysis", 2)
# Crear estudiantes
alice = Student("Alice", "alice@example.com")
bob = Student("Bob", "bob@example.com")
charlie = Student("Charlie", "charlie@example.com")
# Crear instructor
dr_smith = Instructor("Dr. Smith", "smith@example.edu", "Computer Science")
# Asignar instructor
dr_smith.assign_to_course(python_course)
dr_smith.assign_to_course(data_course)
# Inscribir estudiantes
alice.enroll(python_course)
bob.enroll(python_course)
charlie.enroll(python_course)
alice.enroll(data_course)
bob.enroll(data_course) # Esto llena data_course
# Completar un curso
alice.complete_course(python_course)
# Imprimir el estado del sistema
print("System State:")
print(f"Python course has {len(python_course.students)} active students and {len(python_course.completed_students)} completed")
print(f"Data course has {len(data_course.students)} active students")
print(f"Dr. Smith teaches {len(dr_smith.courses)} courses")
print(f"Alice is enrolled in {len(alice.enrolled_courses)} courses and completed {len(alice.completed_courses)}")
print(f"Charlie is enrolled in {len(charlie.enrolled_courses)} courses")
elif test_case == "edge_cases":
# Probar casos borde
course = Course("Small Course", "Test edge cases", 1)
student1 = Student("Alice", "alice@example.com")
student2 = Student("Bob", "bob@example.com")
# Probar inscripción exactamente en el límite de capacidad
result1 = student1.enroll(course)
result2 = student2.enroll(course) # Debería fallar
print(f"Enrollment at capacity: {result1}")
print(f"Enrollment beyond capacity: {result2}")
# Probar completar un curso en el que el estudiante no está inscrito
other_course = Course("Other Course", "Not enrolled")
result3 = student1.complete_course(other_course)
print(f"Complete non-enrolled course: {result3}")
# Probar desinscribirse de un curso en el que el estudiante no está inscrito
result4 = student2.unenroll(course)
print(f"Unenroll from non-enrolled course: {result4}")
# Probar la reasignación de un instructor
instructor1 = Instructor("Dr. Smith", "smith@example.edu", "Python")
instructor2 = Instructor("Dr. Jones", "jones@example.edu", "Java")
instructor1.assign_to_course(course)
print(f"First instructor: {course.instructor.name}")
instructor2.assign_to_course(course)
print(f"After reassignment: {course.instructor.name}")
elif test_case == "capacity_limits":
# Probar límites de capacidad
zero_capacity = Course("Empty Course", "No students allowed", 0)
student = Student("Alice", "alice@example.com")
result1 = student.enroll(zero_capacity)
print(f"Enroll in zero-capacity course: {result1}")
large_capacity = Course("Huge Course", "Many students", 1000)
result2 = student.enroll(large_capacity)
print(f"Enroll in large-capacity course: {result2}")
print(f"Large course has capacity for {large_capacity.max_capacity} students")
elif test_case == "multiple_courses":
# Probar estudiante con múltiples cursos
student = Student("Alice", "alice@example.com")
course1 = Course("Python 101", "Intro to Python")
course2 = Course("Java 101", "Intro to Java")
course3 = Course("C++ 101", "Intro to C++")
# Inscribirse en todos los cursos
student.enroll(course1)
student.enroll(course2)
student.enroll(course3)
print(f"Enrolled in {len(student.enrolled_courses)} courses")
# Completar algunos cursos
student.complete_course(course1)
student.complete_course(course2)
print(f"After completion: Enrolled in {len(student.enrolled_courses)} courses")
print(f"After completion: Completed {len(student.completed_courses)} courses")
# Verificar cursos específicos
enrolled_titles = [c.title for c in student.enrolled_courses]
completed_titles = [c.title for c in student.completed_courses]
print(f"Still enrolled in: {enrolled_titles}")
print(f"Completed: {completed_titles}")
elif test_case == "instructor_workload":
# Probar instructor con múltiples cursos
instructor = Instructor("Dr. Smith", "smith@example.edu", ["Python", "Java", "C++"])
course1 = Course("Python 101", "Intro to Python")
course2 = Course("Java 101", "Intro to Java")
course3 = Course("C++ 101", "Intro to C++")
# Asignar a todos los cursos
instructor.assign_to_course(course1)
instructor.assign_to_course(course2)
instructor.assign_to_course(course3)
print(f"Instructor teaches {len(instructor.courses)} courses")
course_titles = [c.title for c in instructor.courses]
print(f"Courses taught: {course_titles}")
# Verificar que el instructor esté correctamente asignado a cada curso
for i, course in enumerate([course1, course2, course3]):
print(f"Course {i+1} instructor: {course.instructor.name}")Todas las lecciones de Object Oriented Programming
1Fundamentos de la POO
Archivos externosIntroducción a la POOClases vs ObjetosEl parámetro selfMétodosAtributosMétodo constructor (__init__)Resumen - Calculadora simple4Herencia
Herencia básicaLa función super()Sobrescritura de métodosHerencia múltipleOrden de resolución de métodosResumen - Jerarquía de empleados7Métodos especiales
Introducción a los métodos mágicosSobrecarga de operadoresMétodos mágicos de contenedoresRepaso - Lista personalizada10Patrones de diseño Parte 1
Introducción a los patrones de diseñoPatrón SingletonPatrón FactoryPatrón ObserverPatrón Strategy13Desafíos finales
Plataforma de e-learningSistema bancarioDesarrollo de personajes de videojuegosServicio de alquiler de vehículos2Decoradores
Introducción a los decoradoresDecorador propertyDecorador de métodos estáticosDecorador de métodos de clase5Polimorfismo
Sobreescritura de métodos revisitadaDuck TypingClases y métodos abstractosDiseño de interfacesResumen - Calculadora de figuras8Conceptos avanzados de POO
Composición vs. HerenciaMixinsMétodos estáticos y de claseDecoradores de claseGestores de contexto11Patrones de diseño, parte 2
Patrón CommandPatrón AdapterPatrón DecoratorPatrón Template MethodPatrón StatePatrón Composite3Propiedades de clase
Variables de instancia vs de claseDecoradores de propiedadesAtributos privadosResumen - Gestor de cuentas bancarias