Initial commit

Solutions/6_1/structure.py

@@ -0,0 +1,19 @@
+# structure.py
+
+class Structure:
+    _fields = ()
+    def __init__(self, *args):
+        if len(args) != len(self._fields):
+            raise TypeError('Expected %d arguments' % len(self._fields))
+        for name, val in zip(self._fields, args):
+            setattr(self, name, val)
+
+    def __setattr__(self, name, value):
+        if name.startswith('_') or name in self._fields:
+            super().__setattr__(name, value)
+        else:
+            raise AttributeError('No attribute %s' % name)
+
+    def __repr__(self):
+        return '%s(%s)' % (type(self).__name__,
+                           ', '.join(repr(getattr(self, name)) for name in self._fields))