Private methods, functions and variables are very common in programming languages. But Python doesn't support private. It has conventions for naming so considered private but not private. Most of the time private is never required, what Python provides is more than enough. But the need for private come into place when we're dealing with passphrases and servers. For example consider this code, class A: def get(): // code to get the password self.password = password Now consider this,
x = A(); x.get(); x.password
See what just happened? Someone just got the member variable value that the person wasn't supposed to. I suggest to add private support for functions (module __all__ methods to be more clear), methods and variables (module __all__ variables or class variables). (I very bad at reading PEPs so I may miss out something critical that's been explained already (sometimes I miss out a feature in a PEP and think about suggesting that feature when it's already there and then I realize "Oh! It's already here in this PEP"). If that's the case then please correct me.) With Regards, Shreyan Avigyan