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20 changes: 20 additions & 0 deletions src/cityreader/cityreader.py
Original file line number Diff line number Diff line change
@@ -1,9 +1,19 @@
# Create a class to hold a city location. Call the class "City". It should have
# fields for name, lat and lon (representing latitude and longitude).

class City:
def __init__(self, name, lat, lon):
self.name = name
self.lat = lat
self.lon = lon

def __str__(self):
return f"{self.name}, {self.lat}, {self.lon}"


# We have a collection of US cities with population over 750,000 stored in the
# file "cities.csv". (CSV stands for "comma-separated values".)

#
# In the body of the `cityreader` function, use Python's built-in "csv" module
# to read this file so that each record is imported into a City instance. Then
Expand All @@ -21,6 +31,16 @@ def cityreader(cities=[]):
# Ensure that the lat and lon valuse are all floats
# For each city record, create a new City instance and add it to the
# `cities` list

import csv

with open('cities.csv') as csvfile:
readCSV = csv.reader(csvfile, delimiter=',')
next(readCSV)


for row in readCSV:
cities.append(City(row[0], float(row[3]), float(row[4])))

return cities

Expand Down
1 change: 1 addition & 0 deletions src/cityreader/test_cityreader.py
Original file line number Diff line number Diff line change
Expand Up @@ -79,6 +79,7 @@ def setUp(self):
def test_cityreader_correctness(self):
self.assertEqual(len(self.cities), 60)
for i in range(len(self.cities)):
# print(type(self.cities[i].lat), type(self.expected[i].lat))
self.assertTrue(check_city(self.cities[i], self.expected[i]))


Expand Down
18 changes: 11 additions & 7 deletions src/comp/comp.py
Original file line number Diff line number Diff line change
Expand Up @@ -24,48 +24,52 @@ def __repr__(self):
# Write a list comprehension that creates a list of names of everyone
# whose name starts with 'D':
print("Starts with D:")
a = []
a = [i.name for i in humans if i.name[0] == "D"]
print(a)

# Write a list comprehension that creates a list of names of everyone
# whose name ends in "e".
print("Ends with e:")
b = []
b = [i.name for i in humans if i.name[-1] == "e"]
print(b)

# Write a list comprehension that creates a list of names of everyone
# whose name starts with any letter between 'C' and 'G' inclusive.
print("Starts between C and G, inclusive:")
# c = [i.name for i in humans if i.name[0] == "C" or "D" or "E" or "F" or "G"]
# c = [i.name for i in humans if i.name[0] == filter(i.name[0]), ("C", "D", "E", "F", "G")]
c = []
print(c)

# Write a list comprehension that creates a list of all the ages plus 10.
print("Ages plus 10:")
d = []
d = [i.age + 10 for i in humans]
print(d)

# Write a list comprehension that creates a list of strings which are the name
# joined to the age with a hyphen, for example "David-31", for all humans.
print("Name hyphen age:")
e = []
e = [f"{i.name}-{i.age}" for i in humans]
print(e)

# Write a list comprehension that creates a list of tuples containing name and
# age, for example ("David", 31), for everyone between the ages of 27 and 32,
# inclusive.
print("Names and ages between 27 and 32:")
f = []
f = [(i.name, i.age) for i in humans if i.age >= 27 and i.age<= 32]
# f = [(i[0], i[1]) for i in humans]
# f = []
print(f)

# Write a list comprehension that creates a list of new Humans like the old
# list, except with all the names uppercase and the ages with 5 added to them.
# The "humans" list should be unmodified.
print("All names uppercase:")
g = []
g = [Human(i.name.upper(), i.age + 5) for i in humans]
print(g)

# Write a list comprehension that contains the square root of all the ages.
print("Square root of ages:")
import math
h = []
h = [math.sqrt(i.age) for i in humans]
print(h)
25 changes: 25 additions & 0 deletions src/oop/oop1.py
Original file line number Diff line number Diff line change
Expand Up @@ -17,3 +17,28 @@
# pass
#
# Put a comment noting which class is the base class

# Vehicle is the base class

class Vehicle:
pass

class FlightVehicle(Vehicle):
pass

class Starship(FlightVehicle):
pass

class GroundVehicle(Vehicle):
pass

class Airplane(FlightVehicle):
pass

class Car(GroundVehicle):
pass

class Motorcycle(GroundVehicle):
pass


26 changes: 25 additions & 1 deletion src/oop/oop2.py
Original file line number Diff line number Diff line change
Expand Up @@ -4,11 +4,32 @@
# object is constructed.

class GroundVehicle():
def __init__(self, num_wheels):
def __init__(self, num_wheels=4):
self.num_wheels = num_wheels

def drive(self):
return "vroooom"

car = GroundVehicle()
print(car.num_wheels)
print(car.drive())



# TODO

class Motorcycle(GroundVehicle):
def __init__(self, num_wheels=2):
super().__init__(num_wheels)
# self.num_wheels = num_wheels

def drive(self):
return "BRAAAP!!"

moto = Motorcycle()
print(moto.num_wheels)
print(moto.drive())


# Subclass Motorcycle from GroundVehicle.
#
Expand All @@ -30,3 +51,6 @@ def __init__(self, num_wheels):
# Go through the vehicles list and print the result of calling drive() on each.

# TODO

for i in vehicles:
print(i.drive())