Python Sorting Problem
I have a sorting algorithm problem, that consists in sorting objects of sublclass Priority Person(this objects will be placed in a list and the goal is to change the lt method of the subclass priority person to have a influence on the .sort() method on lists), if an object of Priority Person has a deficiency which is described by the parameter True it should be considered LESS than a priority person object that got the parameter False(which means that this person does not have any deficiency), in case both got deficiency or they both don't have deficiency it should be consider the lexicographical order of the first name of the priority persons involved. The main class of the sublclass of Priority Person is the class Person as I show above :
class Person(object):
def __init__(self, name):
"""Create a person"""
self.name = name
try:
lastBlank = name.rindex(' ')
self.lastName = name[lastBlank + 1:]
except:
self.lastName = name
self.birthday = None
def __lt__(self, other):
"""Returns True if self's name is lexicographically
less than other's name, and False otherwise"""
return self.name < other.name
def __str__(self):
"""Returns self's name"""
return self.name
class PriorityPerson(Person): # the __lt__ part of this class does not work and I don't know why?
def __init__(self,name,deficiencia):
super().__init__(name)
self.deficiente = deficiencia
def __lt__(self, other):
if self.deficiente and other.deficiente and self.name< other.name:
return self.name < other.name
elif self.deficiente and other.deficiente and other.name < self.name:
return other.name< self.name
elif self.deficiente and not other.deficiente and self.name < other.name:
return self.name < other.name
elif self.deficiente and not other.deficiente and other.name < self.name:
return self.name< other.name
elif not self.deficiente and other.deficiente and self.name < other.name:
return other.name < self.name
elif not self.deficiente and other.deficiente and other.name < self.name:
return other.name < self.name
elif not self.deficiente and not other.deficiente and self.name < other.name:
return self.name < other.name
elif not self.deficiente and not other.deficiente and other.name < self.name:
return other.name < self.name
Example of Implementation:
p1 = PriorityPerson("John Smith", False)
p2 = PriorityPerson("Sam Mendes", False)
p3 = PriorityPerson("Grandmother Anne", True)
p4 = PriorityPerson("Stephen Hawking", True)
p5 = PriorityPerson("Betty Large", True)
listaPessoas = [p1,p2,p3,p4, p5]
listaPessoas.sort()
for p in listaPessoas:
print(p)
Correct output :
Betty Large
Grandmother Anne
Stephen Hawking
John Smith
Sam Mendes
My wrong output :
Betty Large
Stephen Hawking
Grandmother Anne
Sam Mendes
John Smith
Any help would be extremely appreciated. Thank You .
