Automate the boring stuff with Python

Ch3-Collatz.py

def collatz(number):
    if number%2==0:
        #print (number//2)
        return number//2
    else:
        #print (3*number+1)
        return 3*number+1

try:
    print ("Enter a number", end=" ")
    num = int(input())
    while collatz(num) != 1:
        print(collatz(num))
        num = collatz(num)
except ValueError:
    print ("Please enter a number")

Ch4-CharacterPictureGrid.py

def rows2cols(lista):
    originalRows=len(lista)
    originalCols=len(lista[0])

    newlista = []
    fulllist=[]
    for i in range(0,originalCols): #0-5
        del (newlista)
        newlista = []
        for j in range(originalRows-1,-1,-1): #9-0
            newlista.append(lista[j][i])
        #print(newlista)
        fulllist.append(newlista)
    #print (fulllist)

    #convert list fulllist to string
    retstring=""
    for i in range(0,len(fulllist)):
        for j in range (0,len(fulllist[0])):
            retstring+=fulllist[i][j]
        retstring+="\n"

    return retstring


grid = [['.', '.', '.', '.', '.', '.'],
        ['.', 'O', 'O', '.', '.', '.'],
        ['O', 'O', 'O', 'O', '.', '.'],
        ['O', 'O', 'O', 'O', 'O', '.'],
        ['.', 'O', 'O', 'O', 'O', 'O'],
        ['O', 'O', 'O', 'O', 'O', '.'],
        ['O', 'O', 'O', 'O', '.', '.'],
        ['.', 'O', 'O', '.', '.', '.'],
        ['.', '.', '.', '.', '.', '.']]
print (grid)
print("\n"*3)
print (rows2cols(grid))

Ch4-CommaCode.py

def func(spam):
    protasi=""
    for i in range(0,len(spam)-2):
        protasi+=spam[i]+", "
    protasi+=spam[-2]+" and " +spam[-1]
    return protasi

print (func(['apples', 'bananas', 'tofu', 'cats']))
print (func(['just', 'me', 'myself', 'I']))

Ch5-birthdays.py

import pprint
birthdays={'Kostas':'30 Mar', 'Anastasia':'22 Jan'}

while True:
    print ("Δώσε το όνομα για να σου πω τα γενέθλια, ή πάτα ENTER για τερματισμό ", end="")
    onoma=input()
    if onoma=="":
        break
    if onoma in birthdays:
        print("Τα γενέθλια του/της "+onoma+" είναι: " + birthdays[onoma])
    else:
        print ("Δεν έχω στη Βάση τα γενέθλια του/της "+onoma+ ". Δώσε τώρα την ημερομηνία:", end="")
        hmnia=input()
        birthdays[onoma]=hmnia
    print(birthdays)
    for k in birthdays.keys():
        protasi= ("Ο/Η " + k + " γεννήθηκε την " + birthdays[k])
        print (protasi)

    count={}
    for k in protasi:
        count.setdefault(k,0)
        count[k]+=1
    pprint.pprint(count)

Ch5-FantasyGameInventory.py

# inventory.py

def displayInventory(inventory):
    print("Inventory:")
    item_total = 0
    for k, v in inventory.items():
        print(str(v) + ' ' + k)
        item_total += v
    print("Total number of items: " + str(item_total))

def addToInventory(inventory, addedItems):
    for antikeimena in addedItems:
        inventory.setdefault(antikeimena,0)
        for items,posotites in inventory.items():
            if antikeimena==items:
                inventory[items]+=1
    return inventory

#stuff = {'rope': 1, 'torch': 6, 'gold coin': 42, 'dagger': 1, 'arrow': 12}
#displayInventory(stuff)
inv = {'gold coin': 42, 'rope': 1}
dragonLoot = ['gold coin', 'dagger', 'gold coin', 'gold coin', 'ruby']
inv = addToInventory(inv, dragonLoot)
displayInventory(inv)

Ch5-Party.py

allGuests = {'Alice': {'apples': 5, 'pretzels': 12},'Bob': {'ham sandwiches': 3, 'apples': 2},'Carol': {'cups': 3, 'apple pies': 1}}
def totalBrought(guests, item):
    numBrought = 0
    for k, v in guests.items():
        numBrought += v.get(item, 0)
    return numBrought

print('Number of things being brought:')
print(' - Apples ' + str(totalBrought(allGuests, 'apples')))
print(' - Cups ' + str(totalBrought(allGuests, 'cups')))
print(' - Cakes ' + str(totalBrought(allGuests, 'cakes')))
print(' - Ham Sandwiches ' + str(totalBrought(allGuests, 'ham sandwiches')))
print(' - Apple Pies ' + str(totalBrought(allGuests, 'apple pies')))

Ch5-TicTacToe.py

import random
def drawBoard(board):
    print (board[1]+" | " + board[2]+" | "+ board[3])
    print ("---------")
    print (board[4]+" | " + board[5]+" | "+ board[6])
    print ("---------")
    print (board[7]+" | " + board[8]+" | "+ board[9])

def winner(board):
    wins=[(1,2,3),(4,5,6),(7,8,9),(1,5,9),(3,5,7),(1,4,7),(2,5,8),(3,6,9)]
    for i in range(0,len(wins)):
        if board[wins[i][0]]=="X" and board[wins[i][1]]=="X" and board[wins[i][2]]=="X":
            return ("Human Wins!!!")
        if board[wins[i][0]]=="O" and board[wins[i][1]]=="O" and board[wins[i][2]]=="O":
            return ("Computer Wins!!!")

def fullboard(board):
    if "." in board.values():
        return True

theBoard={1:'.',2:'.',3:'.',4:'.',5:'.',6:'.',7:'.',8:'.',9:'.'}
drawBoard(theBoard)
print ("\n"*5)


while True:
    if not fullboard(theBoard):
        print ("Τέλος παιχνιδιου!")
        break
    print("Give me the position for placing X (1-9) ", end="")
    pos=int(input())
    theBoard[pos]="X"
    print ("\n"*8)
    drawBoard(theBoard)
    if winner(theBoard):
        print(winner(theBoard))
        break
    if not fullboard(theBoard):
        print ("Τέλος παιχνιδιου!")
        break
    print ("Press enter for me to play....")
    input()
    comppos=random.randint(1,9)
    while True:
        if theBoard[comppos]!="X" and theBoard[comppos]!="O":
            theBoard[comppos] = "O"
            break
        else:
            comppos = random.randint(1, 9)
    print ("\n"*8)
    drawBoard(theBoard)
    if winner(theBoard):
        print(winner(theBoard))
        break