class slicing

python-temel/class.slicing.py

@@ -0,0 +1,39 @@
+class MyArray:
+    def __init__(self, a):
+        self.a = a
+
+    def __getitem__(self, index):
+        if isinstance(index, slice):
+            return [self.a[i] for i in range(*index.indices(len(self.a)))] # return
+        self.a[index]
+        return self.a[index]
+
+    def __setitem__(self, index, val):
+        if isinstance(index, slice):
+            k = 0
+            for i in range(*index.indices(len(self.a))):
+                self.a[i] = val[k]
+                k += 1
+        else:
+            self.a[index] = val
+
+    def __len__(self):
+        return len(self.a)
+
+    def __str__(self):
+        return str(self.a)
+
+ml = MyArray([10, 20, 30, 40, 50])
+result = ml[3:5]
+print(result)
+
+result = ml[3]
+print(result)
+
+ml[3:5] = [100, 200]
+print(ml)
+
+ml[3] = 300
+print(ml)
+
+

python-temel/class.slicing.py~

@@ -0,0 +1,38 @@
+class MyArray:
+    def __init__(self, a):
+        self.a = a
+
+    def __getitem__(self, index):
+        if isinstance(index, slice):
+            return [self.a[i] for i in range(*index.indices(len(self.a)))] # return
+self.a[index]
+
+        return self.a[index]
+
+    def __setitem__(self, index, val):
+        if isinstance(index, slice):
+            k = 0
+            for i in range(*index.indices(len(self.a))):
+                self.a[i] = val[k]
+                k += 1
+        else:
+            self.a[index] = val
+
+    def __len__(self):
+        return len(self.a)
+
+    def __str__(self):
+        return str(self.a)
+
+ml = MyArray([10, 20, 30, 40, 50])
+result = ml[3:5]
+print(result)
+
+result = ml[3]
+print(result)
+
+ml[3:5] = [100, 200]
+print(ml)
+
+ml[3] = 300
+print(ml)