Programming Languages Code¶
Chapter 1+2¶
class Player:
def __init__(self, name):
self.name = name
self.inventory = self.Inventory(name)
class Inventory:
def __init__(self, name):
self.name = name
self.invLi = []
def addItem(self, c):
self.invLi.append(c)
print("%s added to %s's inventory!" % (c, self.name))
def useItem(self, c):
self.invLi.remove(c)
print("%s used %s!" % (self.name, c))
def listItems(self):
print("%s's inventory:" % self.name)
for a in self.invLi:
print("- %s" % a)
if __name__ == '__main__':
p1 = Player("Opal")
p2 = Player("Ffion")
p3 = Player("Pepper")
p4 = Player("Miguel")
p1.inventory.addItem("Bow")
p1.inventory.addItem("Headband")
p1.inventory.addItem("Table")
p2.inventory.addItem("Katana")
p2.inventory.addItem("Helmet")
p3.inventory.addItem("Throwing Knives")
p3.inventory.addItem("Belt")
p4.inventory.addItem("Sword")
p4.inventory.addItem("Backpack")
p4.inventory.addItem("Bandage")
print("------")
p1.inventory.listItems()
p2.inventory.listItems()
p3.inventory.listItems()
p4.inventory.listItems()
print("------")
p4.inventory.useItem("Bandage")
p1.inventory.useItem("Table")
p3.inventory.useItem("Throwing Knives")
print("------")
p1.inventory.listItems()
p2.inventory.listItems()
p3.inventory.listItems()
p4.inventory.listItems()
Chapter 3+4¶
def add(a,b):
add.count += 1
c = a+b
return c
def sub(a,b):
sub.count += 1
c = a-b
return c
def mult(a,b):
mult.count += 1
c = a*b
return c
def div(a,b):
div.count += 1
c = a/b
return c
def printOpts(tot):
print("------")
print("Running Total: %s" % str(tot))
print("------")
print("[A] Add")
print("[S] Subtract")
print("[M] Multiply")
print("[D] Divide")
print("[L] List Totals")
print("[Q] Quit")
print("------")
if __name__ == '__main__':
add.count = 0
sub.count = 0
mult.count = 0
div.count = 0
r = 0
while True:
printOpts(r)
x = input("> ")
if x in "ASMDLQasmdlq":
if x.lower() == "a":
while True:
y = input("Type a number to add > ")
if y.isdigit():
newTot = add(r,int(y))
print("Total: %s" % str(newTot))
r = newTot
break
else:
print("Error! Invalid input")
elif x.lower() == "s":
while True:
y = input("Type a number to subtract > ")
if y.isdigit():
newTot = sub(r,int(y))
print("Total: %s" % str(newTot))
r = newTot
break
else:
print("Error! Invalid input")
elif x.lower() == "m":
while True:
y = input("Type a number to multiply > ")
if y.isdigit():
newTot = mult(r,int(y))
print("Total: %s" % str(newTot))
r = newTot
break
else:
print("Error! Invalid input")
elif x.lower() == "d":
while True:
y = input("Type a number to divide > ")
if y.isdigit():
newTot = div(r,int(y))
print("Total: %s" % str(newTot))
r = newTot
break
else:
print("Error! Invalid input")
elif x.lower() == "q":
break
elif x.lower() == "l":
print("Total adds - %s" % str(add.count))
print("Total subtracts - %s" % str(sub.count))
print("Total multiplies - %s" % str(mult.count))
print("Total divides - %s" % str(div.count))
else:
print("Invalid input")
Chapter 5+6¶
import time
def add(*a):
start = time.perf_counter()
elapsed = start - add.lastTime
print(f"Time since last use: {elapsed:.4f} seconds")
add.lastTime = start
res = 0
for d in a:
res += d
print("Sum: %s" % str(res))
print("--------")
return res
if __name__ == '__main__':
add.lastTime = time.perf_counter()
print("Type numbers out and type [=] to sum all previous numbers typed. Type [Q] to exit")
sumLi = ()
while True:
x = input("> ")
if x.isdigit():
sumLi = sumLi + (int(x),)
elif x.lower() == "q":
break
elif x == "=":
add(*sumLi)
sumLi = ()
else:
print("Error! Invalid Input")
Chapter 7¶
class Test:
def __init__(self, ex1):
self.ex1 = ex1
def methodTest(self):
print("Standard test: %s" % self.ex1)
class Mod(Test):
def __init__(self, ex1):
self.ex1 = ex1
def newTest(self):
print("Mod test: %s" % self.ex1)
if __name__ == '__main__':
class1 = Test("12345")
Mod.methodTest = newTest
class2 = Mod('678910')
class1.methodTest()
class2.methodTest()
Chapter 8¶
class ComputerBot:
def __new__(cls, lang, name):
if lang == "en":
return English(name)
elif lang == "et":
return Estonian(name)
elif lang == "it":
return Italian(name)
elif lang == "ja":
return Japanese(name)
else:
return super().__new__(cls)
class English:
def __init__(self, name):
self.name = name
def introduce(self):
print("Hello! My name is ComputerBot.")
def greet(self):
print("Hello %s! Nice to meet you." % self.name)
class Estonian:
def __init__(self, name):
self.name = name
def introduce(self):
print("Tere! Minu nimi on ComputerBot.")
def greet(self):
print("Tere %s! Meeldiv tutvuda." % self.name)
class Italian:
def __init__(self, name):
self.name = name
def introduce(self):
print("Ciao! Mi chiamo ComputerBot.")
def greet(self):
print("Ciao %s! Piacere di conoscerti." % self.name)
class Japanese:
def __init__(self, name):
self.name = name
def introduce(self):
print("こんにちは！私の名前はComputerBotです。")
def greet(self):
print("こんにちは、%sさん！はじめまして。" % self.name)
if __name__ == '__main__':
enBot = ComputerBot("en", "Kaleb")
etBot = ComputerBot("et", "Kaisa")
itBot = ComputerBot("it", "Gio")
jaBot = ComputerBot("ja", "Yuna")
enBot.introduce()
enBot.greet()
print("----------")
etBot.introduce()
etBot.greet()
print("----------")
itBot.introduce()
itBot.greet()
print("----------")
jaBot.introduce()
jaBot.greet()
Chapter 9¶
def mathMachine(name):
def add(self):
print("%s + %s = %s" % (str(self.a), str(self.b), str(self.a+self.b)))
def subtract(self):
print("%s - %s = %s" % (str(self.a), str(self.b), str(self.a-self.b)))
def constructor(self, a, b):
self.a = a
self.b = b
methods = {
"__init__": constructor,
"add": add,
"subtract": subtract
}
return type(name, (object,), methods)
AS_Math = mathMachine("AS_Math")
a1 = AS_Math(4,5)
a1.add()
a1.subtract()
print("------")
a2 = AS_Math(21,4)
a2.add()
a2.subtract()
print("------")
def multiply(self):
print("%s * %s = %s" % (str(self.a), str(self.b), str(self.a*self.b)))
ASM_Math = mathMachine("ASM_Math")
ASM_Math.multiply = multiply
a3 = ASM_Math(10,3)
a3.add()
a3.subtract()
a3.multiply()
Chapter 10¶
class Person:
status = "Player"
def __init__(self, name, age):
self.name = name
self.age = age
def printData(self):
print("%s - %s" % (self.name, self.status))
print("Age: %s" % str(self.age))
print("------")
p0 = Person("Kaleb", 21)
p1 = Person("Reggie", 34)
p2 = Person("Sierra", 23)
p3 = Person("Shafira", 28)
p0.printData()
p1.printData()
p2.printData()
p3.printData()
p0.status = "Host"
p4 = Person("Fletcher", 20)
p0.printData()
p1.printData()
p2.printData()
p3.printData()
p4.printData()
Chapter 11¶
class Descriptor:
def __init__(self, name):
self.name = name
def __get__(self, instance, owner):
if instance is None:
return self
grade = instance.__dict__.get(self.name)
print("=========================")
print("Internal:")
print("%s's %s: %s" % (instance.name, self.name, grade))
print("=========================")
print("Output:")
return instance.__dict__.get(self.name)
def __set__(self, instance, value):
grade = instance.__dict__.get(self.name)
print("=========================")
print("Internal:")
print("%s's %s: %s -> %s" % (instance.name, self.name, grade, value))
print("=========================")
instance.__dict__[self.name] = value
class Student:
mathGrade = Descriptor("mathGrade")
scienceGrade = Descriptor("scienceGrade")
historyGrade = Descriptor("historyGrade")
englishGrade = Descriptor("englishGrade")
def __init__(self, name, mathGrade=None, scienceGrade=None, historyGrade=None, englishGrade=None):
self.name = name
self.mathGrade = mathGrade
self.scienceGrade = scienceGrade
self.historyGrade = historyGrade
self.englishGrade = englishGrade
if __name__ == '__main__':
s1 = Student("Eve", 97, 92, 94, 82)
print(s1.mathGrade)
print(s1.scienceGrade)
print(s1.historyGrade)
s1.englishGrade = 87
print(s1.englishGrade)
s2 = Student("Camryn")
print(s2.scienceGrade)
s2.englishGrade = 88
s2.mathGrade = 53
s2.historyGrade = 76
s2.scienceGrade = 71
print(s2.mathGrade)
print(s2.scienceGrade)
print(s2.historyGrade)
print(s2.englishGrade)
Chapter 12¶
class Messager:
def __init__(self, username):
self.username = username
def log(self, message):
print("%s: %s" % (self.username, message))
class ChatLog(Messager):
def __init__(self, username):
self.username = username
self.newLine = True
def log(self, message, timestamp, cont=False):
if self.newLine:
print("== %s ==" % timestamp)
super().log(message)
if cont == False:
print("")
self.newLine = True
else:
self.newLine = False
if __name__ == '__main__':
p1 = ChatLog("Cherry")
p2 = ChatLog("Tony")
p3 = ChatLog("Colin")
p4 = ChatLog("Sherlyn")
p3.log("Ok what's the plan", "8:32 PM", True)
p3.log("Do we...", "8:32 PM")
p1.log("We're going Ballroom", "8:32 PM")
p2.log("Bruh", "8:33 PM")
p1.log("Tell them Tony and I are going Vault though", "8:33 PM", True)
p1.log("Understood?", "8:33 PM", True)
p1.log("I don't want any leaks...", "8:33 PM", True)
p1.log("You know what will happen.", "8:33 PM")
p3.log("Alright", "8:33 PM")
p4.log("I was drnkning what di di miss", "10:44 PM")