# Noemi Cabrera # 31 October # In this lesson, I learned to iterate through lists using the for loop with in. A # variable of any name can be placed after the for keyword to iterate through a defined # list. With this for loop you can add the integres of a list, add the strings of a list, # count the items in a list, etc. # I had diffculties creating the last program. I didn't know how to fix the problem I # was having with displaying the total number of bones identified. After # researching, I found that that I had to make the variable 'identified' global so that # it could be used many times since it was in a function.

# [ In this code, the for loop iterates through each string in the cities variable and # assigns each one to the variable city, which can be any variable name, and then they're # printed in a separate line.] review and run example cities = ["New York", "Shanghai", "Munich", "Tokyo", "Dubai", "Mexico City", "São Paulo", "Hyderabad"] for city in cities: print(city)

# [ In this code, each of the iteams in the slaes list is added to get the total of the # sales. The for loop contains the total variable that is added with each of the items # until the list is empty. ] review and run example sales = [6, 8, 9, 11, 12, 17, 19, 20, 22] total = 0 for sale in sales: total += sale print("total sales:", total)

# [ The same code above is used here, however, the variable sale is changed to dollars. # This does not affect the code. ] review and run example sales = [6, 8, 9, 11, 12, 17, 19, 20, 22] total = 0 for dollars in sales: total += dollars print("total sales:", total)

# [ In this code, each string in the list birds is printed using the for loop. ] # create a list of 4 to 6 strings: birds # print each bird in the list birds = ["owl","hummingbird","crow","gold finch","cardinal"] for name in birds: print(name)

# In this code, the integers in the player_points list are doubled by mulitplying them # by 2 in a foor loop. Each value is printed in a separate line. # [ ] create a list of 7 integers: player_points # [ ] print double the points for each point value player_points = [5, 10, 3, 8, 4, 12, 20] for point in player_points: print(point*2)

# [ In this code, a long string is created by adding the names found in the birds list. # A for ... in loop is used to iterate through each name and add it to the long_string # variable. ] create long_string by concatenating the items in the "birds" list previously created # print long_string - make sure to put a space betweeen the bird names long_string = "" for name in birds: long_string += " " + name print(long_string)

# [ In this code, the comparison operator < to check if the lenght of the items in the # foot_bones list is less than 10. If true, then the item wll go to the shorter_names # variable. If true, then the item wll go to the shorter_names variable. If false, then # the item wll go to the longer_names variable. ] review and run example of sorting into # strings to display foot_bones = ["calcaneus", "talus", "cuboid", "navicular", "lateral cuneiform", "intermediate cuneiform", "medial cuneiform"] longer_names = "" shorter_names = "" for bone_name in foot_bones: if len(bone_name) < 10: shorter_names += "\n" + bone_name else: longer_names += "\n" + bone_name print(shorter_names) print(longer_names)

# [ This code is simlar to the one above, but this time the items in the foot_bones list # are placed into lists with the .append() method.] review and run example of sorting # into lists foot_bones = ["calcaneus", "talus", "cuboid", "navicular", "lateral cuneiform", "intermediate cuneiform", "medial cuneiform"] longer_names = [] shorter_names = [] for bone_name in foot_bones: if len(bone_name) < 10: shorter_names.append(bone_name) else: longer_names.append(bone_name) print(shorter_names) print(longer_names)

# In this code, the list cities used in one of the cells above is used. If some items # start with m, then those items are printed. If they do not start with m, they're not # printed. # [ ] Using cities from the example above iterate throught the list using "for"/"in" # [ ] Print only cities starting with "m" for city in cities: if city.lower().startswith("m"): print(city) else: pass

# [ ] Using cities from the example above iterate throught the list using "for"/"in" # cities = ["New York", "Shanghai", "Munich", "Tokyo", "Dubai", "Mexico City", "São Paulo", "Hyderabad"] # [ ] sort into lists with "A" in the city name and without "A" in the name: a_city & no_a_city a_city = [] no_a_city = [] for city in cities: if city.lower().startswith("a"): a_city.append(city) else: no_a_city.append(city) print(a_city) print(no_a_city)

# [ In this code the count method is used to count the number of times the letetr a is # found in the cities list. The for loop iterates through each city and the the count of # the letter a is stored in a variable until there are no more a's. The total sum is # printed.] review and run example # iterates the "cities" list, count & sum letter "a" in each city name cities = ["New York", "Shanghai", "Munich", "Tokyo", "Dubai", "Mexico City", "São Paulo", "Hyderabad"] search_letter = "a" total = 0 for city_name in cities: total += city_name.lower().count(search_letter) print("The total # of \"" + search_letter + "\" found in the list is", total)

# [ In this code, the user is asked to enter a visited city name. If that name is found, # then a statement saying so will display. If that name is not found, then a statement # saying so will display. The city_search function is defined and takes 2 arguments # This is used to search the city entered by the user in the default and the # visited_cities list.] review and run example # city_search function has a default list of cities to search def city_search(search_item, cities = ["New York", "Shanghai", "Munich", "Tokyo"] ): for city in cities: if city.lower() == search_item.lower(): return True else: # go to the next item pass # no more items in list return False # a list of cities visited_cities = ["New York", "Shanghai", "Munich", "Tokyo", "Dubai", "Mexico City", "São Paulo", "Hyderabad"] search = input("enter a city visited: ") # Search the default city list print(search, "in default cities is", city_search(search)) # search the list visited_cities using 2nd argument print(search, "in visitied_cites list is", city_search(search,visited_cities))

# [ In this program, the user is asked to enter a paint color to see if it's available. # If the color is in the list of paint colors defined, then a statement saying it's # found is displayed. If not, then a statement saying it's not found is displayed ] # complete paint stock def paint_search(search_color, paint_colors = ["pink","blue","purple", "turquoise", "white"] ): for color in paint_colors: if color == search_color.lower(): return "color found" else: pass return "color not found" color_request = input("Enter the paint color you need:").lower() print(color_request, paint_search(color_request))

# [ This program is designed to be a quiz that identifies if the foot bone entered is # found in the foot_bones list. If the bone is not found, then incorrect displays. # If the bone is found in the list, correct displays. The bone_search function decides # if answer is correct or incorrect and identifies how many times the answers were # correct. ] Complete Foot Bones Quiz foot_bones = ["calcaneus", "talus", "cuboid", "navicular", "lateral cuneiform", "intermediate cuneiform", "medial cuneiform"] identified = 0 def bone_search(search_bone): global identified for bone in foot_bones: if bone == search_bone.lower(): identified += bone.count(bone) return "correct" else: pass return "incorrect" print("Is talus in the foor_bone list?:", bone_search("talus")) print("Is distal in the foor_bone list?:", bone_search("distal")) print("Total number of identified bones:", identified)

# [ ] bonus version