Question

I am stuck on how to increase and decrease the population of il in the below question using Python 3:

import logging

class State:
    """A class representing a US state."""

    def __init__(self, name, postalCode, population):
        self.name = name     
        self.postalCode = postalCode
        self.population = population

    def __str__(self):
        """Readable version of the State object"""
        return 'Name: ' + self.name + ", Population (in MM): " + str(self.population) + ", PostalCode: " + self.postalCode

    def increase_population(self, numPeople):
        """Increases the population of the state."""
        self.population += numPeople
        print("Population of",self.name,"increased to",self.population,"million.")

    def decrease_population(self, numPeople):
        """Decreases the population of the state."""
        try:
            if (numPeople > self.population):
                raise ValueError("decrease_population(self, numPeople): Invalid value for population reduction")
            else:
                # TODO: decrease the population by the value in variable numPeople
                self.population -= numPeople

                # Print new population
                print("Population of",self.name,"decreased to",self.population,"million.")
        except Exception as e:
            logging.exception(e)  

il = State("Illinois","IL",12.8)

# TODO: increase the population of il by 1 million
#HELP HERE PLEASE

# TODO: decrease the population of il by 1.5 million
#HELP HERE PLEASE

Answer 1

import logging

class State:

def __init__(self, name, postalCode, population):

self.name = name

self.postalCode = postalCode

self.population = population

def __str__(self):

"""Readable version of the State object"""

return 'Name: ' + self.name + ", Population (in MM): " + str(self.population) + ", PostalCode: " + self.postalCode

def increase_population(self, numPeople):

"""Increases the population of the state."""

self.population += numPeople

print("Population of",self.name,"increased to",self.population,"million.")

def decrease_population(self, numPeople):

"""Decreases the population of the state."""

try:

if (numPeople > self.population):

raise ValueError("decrease_population(self, numPeople): Invalid value for population reduction")

else:

# TODO: decrease the population by the value in variable numPeople

self.population -= numPeople

# Print new population

print("Population of",self.name,"decreased to",self.population,"million.")

except Exception as e:

logging.exception(e)

il = State("Illinois","IL",12.8)

il.increase_population(1000000)

il.decrease_population(1500000)

import logging class State: def __init_(self, name, postalCode, population): self.name = name self.postal Code = postal Code self.population = population def _str_(self): "Readable version of the State object return 'Name: ' + self.name + ", Population (in MM): " + str(self.population) + ", Postal Code: " + self.postalCode def increase_population(self, numPeople): " Increases the population of the state." self.population += numPeople print("Population of", self.name, "increased to", self.population, "million.") def decrease_population(self, numPeople): "Decreases the population of the state." try: if (numPeople > self.population) : raise ValueError("decrease_population(self, numPeople): Invalid value for population reduction") else: # TODO: decrease the population by the value in variable numPeople self.population -= numPeople # Print new population print("Population of", self.name, "decreased to", self.population, "million.") except Exception as e: logging.exception(e) 31 32 33 il = State("Illinois", "IL", 12.8) il.increase_population (1000000) il.decrease_population ( 1500000)