models.py proyecto Universidad en Django

	# -*- coding: utf-8 -*-
	from __future__ import unicode_literals
	from django.db import models
	# Create your models here.
	class Alumno(models.Model):
	ApellidoPaterno= models.CharField(max_length=35)
	ApellidoMaterno = models.CharField(max_length=35)
	Nombres = models.CharField(max_length=35)
	DNI=models.CharField(max_length=8)
	FechaNacimiento=models.DateField()
	SEXOS= (('F','Femenino'),('M','Masculino'))
	sexo=models.CharField(max_length=1,choices=SEXOS,default='M')
	#foto=models.ImageField(upload_to='photos')
	def NombreCompleto(self):
	cadena="{0} {1} {2}"
	return cadena.format(self.ApellidoPaterno,self.ApellidoMaterno,self.Nombres)
	def __str__(self):
	return self.NombreCompleto()
	class Curso(models.Model):
	Nombre = models.CharField(max_length=30)
	Estado = models.BooleanField(default=True)
	Creditos = models.PositiveIntegerField(default=1)
	def __str__(self):
	return "{0} -> {1}".format(self.Nombre,self.Creditos)
	class Matricula(models.Model):
	Alumno =models.ForeignKey(Alumno, null=False, blank= False, on_delete= models.CASCADE)
	Curso = models.ForeignKey(Curso, null=False, blank=False, on_delete=models.CASCADE)
	FechaMatricula=models.DateTimeField(auto_now=True)
	def __str__(self):
	cadena = "{0} inscrito en: {1}"
	return cadena.format(self.Alumno, self.Curso)

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