Is it possible to add in a third string in this magic method?

Question

#i am trying to add in "sandwich" to the example code.
#thanks in advance

class SpecialString:
def __init__(self, cont):
self.cont = cont

def __truediv__(self, other, other2):
line = "=" * len(other.cont)
return "\n".join([self.cont, line, other.cont, other2.cont])

spam = SpecialString("spam")
hello = SpecialString("Hello world!")
sandwich = SpecialString("sandwich")
print(spam / hello / sandwich)

Answer 1

it is not possible to add another parameter to the __truediv__ magic method.
But you can make the print statement work as you want by changing the class like this:

class SpecialString:
def __init__(self, cont):
self.cont = cont

def __truediv__(self, other):
line = ''=' * 10 # I put 10 equal characters here for simplicity
return '\n'.join([str(self), line, str(other)]) # because it will work with strings which have no 'cont' attribute

def __rtruediv__(self, other): # this method will be called when this object is to the right of the operator
line = '=' * 10
return '\n'.join([str(other), line, str(self)]) # this time other comes first

def __str__(self): # this will be called by str(self)
return self.cont

spam = SpecialString("spam")
hello = SpecialString("Hello world!")
sandwich = SpecialString("sandwich")
print(spam / hello / sandwich)