How to pass value from method to function

[buran]

Stop writing classes

what is the purpose to write a class with the only purpose to return an element of a list that you pass as argument at the time of instantiation?
if that is some weird test question

from single_method_list import SingleMethodList


def list_length(single_method_list):      # This is how I have done it and it works.
   single_method_list = MyClass([i for i in range(0, 234589)])

   for x in (10**p for p in range(1, 8)):
       if single_method_list.get(x):
           print("More than", x)
           first = x
       else:
           print("Less than", x)
           last = x
           break

   answer = False
   while not answer:
       result = (first + last)/2
       result = int(round(result))
       print(result)
       if single_method_list.get(result):
           first = result
           print('first', result)
       else:
           last = result
           print('last', result)

       if single_method_list.get(result) and not single_method_list.get(result + 1):
           answer = True
           print(result + 1)


a_list = SingleMethodList(list(range(0, 234589))) # python3
#a_list = SingleMethodList(range(0, 234589)) #python2 - I don't understand why test case use list comprehension from xrange, instead of simply range

it looks like you use python3 and test case is using python2. Note - I just adjusted your code, did not correct algorithm or code/style