Donnerstagabend

Donnerstag/check_zip.py

@@ -0,0 +1,7 @@
+it1 = range(5)
+it2 = range(100,105)
+
+for a, b in zip(it1, it2):
+    print(a)
+    print('-' * 20)
+    print(b)

Donnerstag/decorators.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python3
+
+def counter(func):
+    def counting(*args, **kwargs):
+        counting.callcount += 1
+        return func(*args, **kwargs)
+    counting.callcount = 0
+    return counting
+
+def get_counter(func):
+    try:
+        return func.callcount
+    except:
+        return None
+
+def reset_counter(func):
+    try:
+        func.callcount
+        func.callcount = 0
+    except:
+        return None

Donnerstag/fakultät.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python3
+from decorators import counter, get_counter
+
+
+@counter
+def fak(n):
+    if type(n) is not int or n < 0:
+        raise TypeError("Illegal type")
+    if n == 0: 
+        return 1
+    return n * fak(n-1)
+
+print("6! =", fak(6))
+print("Anzahl Aufrufe:", get_counter(fak))

Donnerstag/v_calc.py

@@ -1,10 +1,14 @@
 #!/usr/bin/env python3
-from vectors import Vector
+from vectors import Vector, Vector2
 
-v1 = Vector(1, 2, 3, )
+v1 = Vector(1, 2, 3)
 v2 = Vector(4,0,1)
-print(v1.get_values())
-del v2
-print("Jetzt  wird v2 freigebe ")
-
-#print(v2)
+v3 = v1 * 3
+#v4 = v1 + v2 #.addition(v2)
+#print(v3.get_values())
+print(str(v1))
+print(v3)
+#print(v4.get_values())
+v5 = Vector2(1, 3)
+print(v5 + 3)
+print()

Donnerstag/vectors.py

@@ -1,16 +1,31 @@
 #!/usr/bin/env python3
 """
 Mathematische Vektorenals Klasse
+
+__magic_methods__
 """
+class VectorError(Exception):
+    pass
+class VectorTypeError(VectorError):
+    pass
+
+
 # Oberklassen werden automatisch vererbt
 class Vector():
-    values = ()
+    
     def __init__(self, *values):
         "Initialisierung 1 Funktion nach Erzeugen des Objekts"
         self.my_values = values
-    def __del__(self):
+    def __len__(self): #entspricht len  länge in der class
+        return len(self.my_values)
+
+    def __str__(self) -> str: #entspricht str  string in der class
+        return type(self).__name__ + str(self.my_values)
+
+    def __del__(self): 
         "Destruktor: Letzte Funktion vor Freigabe des Speichers"
         print("Ein Objekt wird freigegeben ({})".format(self.my_values))
+    
     def get_values(self):
         return self.my_values
 
@@ -19,6 +34,24 @@ class Vector():
         print("Aufruf")
         print(args)
 
+    def __mul__(self, factor): #entspricht multiplikation  * in der class
+       multipi = [v * factor for v in self.my_values]
+       return type(self)(*multipi) ##Nicht vergessen * und classename 
+
+    def __add__(self, other): #entspricht addition  + in der class
+        if not isinstance(self, Vector) or not isinstance(other, Vector):
+            raise VectorTypeError("Addition nur von Vektoren")
+        if len(self) !=len(other):
+            raise VectorTypeError("Vektoren ungleicher Laenge")
+        summenwert = []
+        #zip iteriert ueber alle angegebenen Iterables parallel
+        for a, b in zip(self.get_values(), other.get_values()):
+            summenwert.append(a + b)
+        return type(self)(*summenwert)
+    
+    def info(self):
+        return type(self).__name__
+
     def poly(self, *args):
         if len(args) == 1:
             if type(args[0]) is str:
@@ -29,5 +62,15 @@ class Vector():
             self.poly_2param(*args)
         elif len(args) == 0:
             Vector.poly_0param(self, *args)
-        
-    
+    
+
+class Vector2(Vector):
+    def __init__(self, val1, val2):
+        super().__init__(val1, val2)
+
+    def __add__(self, other):
+        sum = [d + other for d in self.my_values]   
+       # return super(self).__add__(Vector2.sum)
+
+    def __mul__(self, factor):
+        return super().__mul__(factor)