Using python: Suppose a class called Fraction has been defined. The following st

Question

Using python:

Suppose a class called    Fraction    has been defined. The following statements appear in the end-user’s main program. Describe All of the methods that MUST be defined in the   Fraction   class to allow this code to work.
NOTE: Do NOT write the methods themselves, but rather describe which ones would need to be implemented to make this customer’s code work:

from modFraction import Fraction
f1 = Fraction(4,5 );       f2 = Fraction( 3,7) ;     f3 = f1 + f2   #computes the sum of the fractions
print(s3

Explanation / Answer

f1 = Fraction(4,5 ); and  f2 = Fraction( 3,7); => for these methods to work, we need a constructor in the class.. taking 2 arguments. First argument will denote the integral part, while second may denote fractional part.

for f3 = f1 + f2 to work => there need to be defined a magic method __add__(self, other) which will return the result in fraction class object format.

print(f3) => for this method to work, there need to be a __str__(self): method, which returns a string.. that string willl be consumed by print() method.

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