Create main.py

Exercice12/main.py

@@ -0,0 +1,11 @@
+class Book:
+    def __init__(self, title, author, year):
+        self.title = title
+        self.author = author
+        self.year = year
+
+class Library:
+    def __init__(self):
+        self.books = []
+	self.borrow_books = []
+    # Ajouter les méthodes ici