codehs unit 7 python

7.2.8: Listed Greeting

# fill in this function to greet the user! user_info = "Booba" def greeting(user_info): greeting = user_info.split() return "Hello, " + (greeting[0]) + "! I also enjoy " +(greeting[-1]) + "!" print (greeting(user_info))

7.2.6: Spell It Out

# fill in this function to return a list containing each character in the name name = "Jessica" def spell_name(name): spell_out = list(name) return spell_out print (spell_name(name))

7.1.9: Diving Contest

# fill in this function to return the total of the three judges' scores! judges_scores=(10,10,10) def calculate_score(judges_scores): return judges_scores[0]+judges_scores[1]+judges_scores[2] print (calculate_score(judges_scores))

7.3.7: Owls

# this function should return the number of words that contain "owl"! def owl_count(text): return 0 text ="I really like owls. Did you know that an owl's eyes are more than twice as big as the eyes of other birds of comparable weight? And that when an owl partially closes its eyes during the day, it is just blocking out light? Sometimes I wish I could be an owl." word ="owl" def owl_count(text): text=text.lower() owlist=list(text.split()) count=text.count(word) return count print (owl_count(text))

7.3.6: Max In List

# your function should return the maximum value in `my_list` def max_int_in_list(my_list): return 0 my_list = [1, 3, 456, 2038] def max_int_in_list(my_list): highest = my_list[-1] for num in my_list: if num > highest: highest = num return highest biggest_int = max_int_in_list(my_list) print (biggest_int)

7.2.9 Top Movies

# Enter your code here movie_list = ["John Wick 3", "Angry Birds Movie", "Rush Hour 2", "Ip Man"] print(movie_list[0]) movie_list[0] = "Star Wars" print(movie_list[0])

7.1.8: Citation

def citation(names): author_name = ((names)) name = str(names[2]) + ", " + str(names[0]) + " " + str(names[1]) return name print(citation(["Martin", "Luther", "King, Jr."]))

7.3.8: Exclamat!on Po!nts

def exclamation(text): return text text = "I like music. What is iodine?" def exclamation(text): my_list = list(text) output = "" for item in my_list: if item == "i": output = output + "!" else: output = output +item return output print(exclamation(text))

7.1.10: Coordinate Pairs

import math # fill in this function to return the distance between the two points! first_point = (1, 1) second_point = (4, 5) def distance(first_point, second_point): x1= first_point[0] x2= second_point[0] y1= first_point[1] y2= second_point[1] power1 = pow(y2 - y1, 2) power2 = pow(x2 - x1, 2) return math.sqrt (power1 + power2) print (distance(first_point, second_point))

7.5.4 Simulating a Coin Flip

import numpy as np import random N = 10 epsilon = np.zeros(N) def coin_flip(): #flip coin for each n = 1,...,N flip = random.randint(0, 1) if (flip == 0): result = "Heads" else: result = "Tails" return result for n in range(N): result = coin_flip() if result == "Heads": epsilon[n] = 1 else: epsilon[n] = -1 print(epsilon) coin_flip() print(result)

7.4.14 Librarian, Part 2

list=[] for i in range (5): name = input("Name: ") list.append(name.split()[-1]) list.sort() print(list)

7.4.7 Librarian

list=[] for i in range(5): name=input("Name:") list.append(name) list.sort() print(list)

7.4.5 Five Numbers

list=[] for i in range(5): number=int(input("Number:")) list.append(number) print(list) final=sum(list) print(final)

7.4.12 Empty List (Append and Remove)

my_list = [] my_list.append(3) my_list.append("hello") my_list.append(False) for x in my_list: print(x) my_list.remove(3) my_list.remove(False) print(my_list)

7.4.13: Take a Thing Out, Sort It, and Reverse It

my_list=["eggplant", "apple", "zucchini", "rambutan", "grapefruit"] def remove_sort_reverse(my_list): my_list.remove("eggplant") my_list.sort() my_list.reverse() return my_list print (remove_sort_reverse(my_list))

7.1.7 Fix This Tuple

my_tuple = (0, 1, 2, "hi", 4, 5) # Your code here... my_tuple = my_tuple[:3] + (3,) + my_tuple[4:] print(my_tuple)

7.4.4 How Many Names?

nn = int(input("How many names do you have?:")) namelist = [] for i in range (nn): name = input("Name:") namelist.append(name) print ("First name:" + namelist[0]) print ("Middle names:" + str(namelist[1:-1])) print ("Last name:" + namelist[-1])

7.4.15 Owls, Part 2

text = input("Enter some text: ") text.lower() text.split() print("There are " + str(text.count("owl")) + " words that contained \"owl\".") print("They occured at indices: for c, value in enumerate(text, 1):") print("They occured at indices: ") for c, value in enumerate(text, 1): print(c, value)

7.3.9 Word Ladder

user_string = input("Enter a string: ") def get_index(): while True: try: user_index = int(input("Enter an Index: ")) if user_index >= len(user_string): print("Invalid Index") continue if user_index < -1: print("Invalid Index") continue except ValueError: print("Invalid Index") continue return user_index def get_string(): while True: user_letter = input("Enter letter: ") if user_letter.isupper(): print("Character must be a lowercase letter!") continue if len(user_letter) > 1: print("Must be exactly one character!") continue return user_letter while True: user_string = list(user_string) returned_index = get_index() if returned_index == -1: break returned_string = get_string() user_string[returned_index] = returned_string print("".join(user_string))