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Python class structure

I am trying to make my new code as user friendly as possible and what I would have in mind for the particular problem I am facing atm is this:

Suppose we have

import numpy as np
class TestClass:
 def __init__(self, data):
 self.data = data
 @property
 def method_a(self):
 return np.median(self.data)
 @property
 def method_b(self):
 return np.mean(self.data)
foo = TestClass([1, 2, 5, 7, 12, 6, 3, 37, 16])
print(foo.method_a)
print(foo.method_b)

Everything is fine so far. Method A gives me the median, method B the mean.

During processing I will switch depending on circumstances between both methods. So sometimes I will call method A, sometimes method B. However, what I want is then to continue with a method C, that acts upon the result of either method A or B in such a way

final_result = foo.method_a.method_c

or

final_result = foo.method_b.method_c

I know it is possible to write method C as a function and do it like this:

final_result = method_c(foo.method_a)
final_result = method_c(foo.method_b)

but I think it would make the code easier to read if I could apply method C as stated above.

Is this possible somehow?

thanks

Answer*

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  • Humm. I did not manage to implement your ideas directly in my code, however, I dd not know that one can wrap a return value inside another class. 😊 With this I simply moved my Methods A and B to the parenting class and returned a new class for which then method C can be applied in the way I want. Hard to describe what I did, but your comment helped 😊 Commented Mar 21, 2015 at 15:20

lang-py

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