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To: Steven D'Aprano <steve+comp.lang.python@pearwood.info>, python-list@python.org
Subject: Re: Why can not initialize the class?
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Xref: csiph.com comp.lang.python:76832

One final version:

class Contact(object):
     def __init__(self, email="haha@haha"):
         self.email = email
     def _get_email(self):
         return self._the_secret_private_email
     def _set_email(self, value):
         self.self._the_secret_private_email = value
     email = property(_get_email, _set_email)

contact = Contact()
print(contact.email)

There is a little mistake here. It is

self._the_secret_private_email = value

not

self.self._the_secret_private_email = value

think for your demo .The value in `def _set_email(self, value):` is the value of self.email .