let foo, bar, baz

del foo

print("foo" in globals()) # False
print("bar" in globals()) # True
print("baz" in globals()) # True

del bar, baz

print("foo" in globals()) # False
print("bar" in globals()) # False
print("baz" in globals()) # False

let l = [1,2,3,4,5]

del l[1]
print(l) # [1, 3, 4, 5]
del l[3]
print(l) # [1, 3, 4]
try:
    del l[3]
except:
    print(exception.arg) # List index out of range

let o = object()
o.foo = object()
o.foo.bar = object()
o.foo.bar.baz = 42
o.foo.bar.qux = "hi"

print(dir(o.foo.bar))
print(o.foo.bar.baz)
del o.foo.bar.baz
print(dir(o.foo.bar))
print(o.foo.bar.qux)
try:
    print(o.foo.bar.baz)
except:
    print(exception.arg) # AttributeError
del o.foo.bar
print(dir(o.foo))
try:
    print(o.foo.bar)
except:
    print(exception.arg) # AttributeError
del o.foo
del o