我如何从方法列表中判断出哪些已在该类中定义，哪些方法已被继承？

Question

我如何从方法列表中判断出哪些已在该类中定义，哪些已被继承？例如。我有一个银行模块，有两个类，BankAccount和Transactions。 Transcations继承自BankAccount

>>> dir(bank.BankAccount) 
[ 'chk', 'interest']
>>> dir(bank.Transcations) 
[ 'chk', 'deposit', 'interest', 'withdraw']

我如何检查'chk'和'interest'方法是否被继承，是否可以判断从哪个类继承而来？

Answer 1

>>> class BankAccount(object):
...     def deposit(self):
...             pass
...     def account_no(self):
...             pass
... 
>>> class Transaction(BankAccount):
...     def withdrawal(self):
...             pass
... 
>>> Transaction.__dict__.keys()
['__module__', '__doc__', 'withdrawal']
>>> BankAccount.__dict__.keys()
['__module__', 'deposit', '__dict__', '__weakref__', '__doc__', 'account_no']

Answer 2

您可以查看bank.Transactions.__dict__.keys()