Python Sheet Cheat Sheet

def areaofcircle(r):
    pi = 3.1415
    area = pi * (r ** 2)
    return area

user_radius = float(input("Enter the Radius: "))
print("The area of the circle is ", areaofcircle(user_radius))

word = input("Enter the word: ")
index = 0
reverse = ''
while index < len(word):
    reverse = word[index] + reverse
    index = index + 1 

print ("Reverse: ", reverse)

fibonacci = [0,1]
print(0)
print(1)
while len(fibonacci) < 50:
    number = fibonacci[len(fibonacci) - 2] + fibonacci[len(fibonacci) - 1]
    fibonacci.extend([number])
    print(number)

def createlist(quitword):
    print ("Keep entering words to add to the list")
    print ("Quit when word =", quitword)
    mylist = []
    while True:
        user_word = input("Please ente0r a list item: ")
        if user_word == (quitword):
            return mylist
        duplicate = False
        for item in mylist:
            if item == user_word:
                duplicate = True
        if (duplicate == True):
            print ("Duplicate Word!")
        else:
            mylist.append(user_word)
userlist = createlist("stop")
print (userlist)

def isPalindrome(user_word):
    length = len(user_word)
    while length >= 1:
        firstnumber = 0
        firstletter = user_word[firstnumber]
        lastletter = user_word[length - 1]
        if firstletter == lastletter:
            firstletter == firstnumber + 1
            lastletter == length - 1
            length = length - 2
            if length == 0 or 1:
                return True
        else:
            return False
                
        
print ("Keep entering words to check that the word is palindrome or not.")
print ("Quit when word = quit")
while True:
    user_word = input("Please enter a word: ")
    if user_word == ("quit"):
        break
    else:
        length = len(user_word)
        print ("The length of the word is:", length)
        if isPalindrome(user_word) == True:
            print (user_word, "is a palindrome")
        else:
            print (user_word, "is not a palindrome")

import random
chance = 3
score = 0
while chance > 0:
    print ("Guessing game")
    mylist = ['bowling','badminton','table tennis','basketball','golf']
    print ("Words:" ,mylist)
    randomitem = random.choice(mylist)
    userguess = input("Please guess a word: ")
    if userguess == randomitem:
        score = score + 100
        print ("That's Correct! Score: ", score)
    elif userguess in mylist:
        chance = chance - 1
        print ("Sorry, wrong choice!")
        print("Chance: ", chance)
    else:
        chance = chance - 1 
        print ("Sorry, that is not even in the list!")
        print("Chance: ", chance)
if chance == 0:
    print ("Game Over! The word was ", randomitem)
    print ("Final Score:", score)

integer = input("Enter number: ")
integer = int(integer)
remainder = integer
binary = ''
while integer != 0:
    remainder = integer % 2
    integer = int(integer / 2)
    remainderstr = str(remainder)
    binary = binary + remainderstr
if integer == 0:
    index = 0
    binary2 = ''
    while index < len(binary):
        binary2 = binary[index] + binary2
        index = index + 1
    print(binary2)

#forloop
forlist = [1,2,3]
for item in forlist:
    print(item)
    
#whileloop
whilelist = [1,2,3]
whilelen = 0
while whilelen != len(whilelist):
    print(whilelist[whilelen])
    whilelen = whilelen + 1


#show the length of the giving word
print ("Keep entering words to add to the list")
print ("Quit when word = exit")
while True:
    user_word = input("Please enter a list item: ")
    if user_word == ("exit"):
        break
    else:
        length = len(user_word)
        print ("The length of the words is", length, ".")

#type the words in using loop
def theFunction():
    print ("Keep entering words to add to the list")
    print ("Quit when word = stop")
    user_word = input("Please enter a list item: ")
    while True:
        if user_word == ("stop"):
            break
        else:
            user_word = input("Please enter a list item: ")
    return
            
theFunction()

#times the number using def()
def computethis(a1,b2):
    compute = a1 * b2
    return compute
a1 = int(input('First Number: '))
b2 = int(input('Second Number: '))
print(computethis(a1,b2))

#add stars to the word
def finalFunction(string):
    star = '****' + string + '****'
    print(star)
    return
finalFunction("777")