如何将选定的参数传递给python constru

Question

我有这样一个初始值设定项：

def __init__(self, options=None, rinse=True, algorithm="foo"):
   if options is not None:
      self.options = options
   else: 
      self.create_default()

   if (rinse==False): #would mean rinse parameter was passed
      self.options.rinse = rinse
   if (algorithm!="foo"): #would mean algorithm parameter was passed
      self.options.algorithm = algorithm

我想能够调用以上几种方式。以下是一些例子：

a = MyClass() #nothing was passed
a = MyClass(rinse: False) #only rinse parameter was passed
a = MyClass(algorithm: "bar") #only algorithm parameter was passed
a = MyClass(options, rinse, algorithm) #pass all three arguments

问题

如何构造这个初始值设定项，以便传递选择性参数。你知道吗

Answer 1

如果您愿意将示例改为使用等号而不是冒号，那么__init__应该可以正常工作：

a = MyClass() #nothing was passed
a = MyClass(rinse= False) #only rinse parameter was passed
a = MyClass(algorithm= "bar") #only algorithm parameter was passed
a = MyClass(options, rinse, algorithm) #pass all three arguments