I want to do the following:
pattern = cl().a().b("test").c()
where cl is a class and a, b, c are class methods.
After that I need to call pattern.to_string and it should output a string that was formed. Each method returns a string.
Now how can I achieve the above? Append the method output to a list? What about the chainable function? If I wrote the class the normal way, the above won't work.
Thank.
Return the class instance at the end of each method and store the intermediate results in a class variable:
class MyClass:
result = None
def a(self):
# do things and store in self.result
self.result = ...
return self
def b(self, value):
# do things and store in self.result
self.result = ...
return self
This allows you to chain the methods as desired: cl().a().b("test").c().
You can then obtain the result by looking at the value of instance.result.