Straight into the interpreter, vs in function

cli.py

$ python3
Python 3.7.0 (default, Jul 23 2018, 20:24:19)
[Clang 9.0.0 (clang-900.0.39.2)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> class C():
...     def __init__(self, i):
...         print(f"contructing {i}")
...         self.i = i
...     def __del__(self):
...         print(f"deleting {self.i}")
...
>>> for i in range(5):
...     C(i)
...
contructing 0
<__main__.C object at 0x102a26898>
contructing 1
deleting 0
<__main__.C object at 0x102a26828>
contructing 2
deleting 1
<__main__.C object at 0x102a26898>
contructing 3
deleting 2
<__main__.C object at 0x102a26828>
contructing 4
deleting 3
<__main__.C object at 0x102a26898>
>>> def unused():
...     for i in range(5):
...         C(i)
...
>>> unused()
contructing 0
deleting 0
contructing 1
deleting 1
contructing 2
deleting 2
contructing 3
deleting 3
contructing 4
deleting 4
>>> (Exiting with Ctrl+D)
deleting 4 <- this probably comes from the first loop