wtfpython

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>>> def __greet():
...   print("hello")
...
>>> __greet()
hello
>>> class C:
...   def run(self):
...     __greet()
...
>>> C().run()
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "<stdin>", line 3, in run
NameError: name '_C__greet' is not defined

Interesting, I'm wondering what should be the right way to call __greet inside the run method then