Python Coding:The Road class For us, a road will be something that has a length and connects two different cities. Complete the implementation of the Road class by writing code for the three unfinished methods ( eq (), set length(), and str ()), following the specifications given in the comments. Test your Road methods by running test assign6.py. You should now see all of the City and Road tests pass.

class Road: """ A Road connects two different cities and has a length. """

def __init__(self, city1, city2, length): """ city1, city2: strings length: int """ # DO NOT MODIFY THIS METHOD if city1 == city2: raise ValueError("Cities must be different") self.city1 = city1 self.city2 = city2 self.length = int(length)

def __eq__(self, other): """ Two roads are considered equal if they connect the same two cities.

other: Road object returns: boolean """ return NotImplemented

def __ne__(self, other): # DO NOT MODIFY THIS METHOD return not (self == other)

def set_length(self, length): """ Sets this road's length to the given length. Does not return anything.

length: int """ return NotImplemented

def __str__(self): """ Returns a string representation of this road, of the form DOES NOT PRINT ANYTHING.

returns: string """ return "Not Implemented"

def __repr__(self): # DO NOT MODIFY THIS METHOD return str(self)