Enter the following code into a text file, or an input cell in a worksheet:
class Test():
class_list = []
def __init__(self):
self.instance_list = []
instance_1 = Test()
instance_2 = Test()
instance_1.instance_list.append(1)
instance_2.instance_list.append(2)
print("Instance 1 instance_list:" + str(instance_1.instance_list))
print("Instance 2 instance_list:" + str(instance_2.instance_list))
print("Appending values to class_list:")
instance_1.class_list.append(3)
instance_2.class_list.append(4)
print("Instance 1 class_list:" + str(instance_1.class_list))
print("Instance 2 class_list:" + str(instance_2.class_list))
print("Adding new attributes:")
instance_1.new_list = [5,6]
instance_2.new_list = [7,8]
print("Instance 1 new list:" + str(instance_1.new_list))
print("Instance 2 new list:" + str(instance_2.new_list))The output should look like this:
sage: load("4460_9_6.py") Instance 1 instance_list:[1] Instance...