Lecture "Organising information: ordered structures", exercise 1

[essepuntato]

Write a sequence of instructions in Python to create a list with the following elements ordered alphabetically: "​Harry"​, "Draco"​, "​Hermione"​, ​"​Ron"​, "​Severus"​.

[giorgimariachiara]

my_list = list ()
my_list.append (Draco)
my_list.append (Harry)
my_list.append (Hermione)
my_list.append (Ron)
my_list.append (Severus)

[elizastuglik]

[sotarega]

Approach 1 (the one mentioned above, since lists care about the order of addition):

name_list = list()
name_list.append("Draco")
name_list.append("Harry")
name_list.append("Hermione")
name_list.append("Ron")
name_list.append("Severus")
print(name_list)

Approach 2 (add names in any order then use .sort)

name_list = list()
name_list.append("Harry")
name_list.append("Ron")
name_list.append("Hermione")
name_list.append("Draco")
name_list.append("Severus")
name_list.sort()
print(name_list)

[tommasobattisti]

first_list = list()
first_list.append('Draco')
first_list.append('Harry')
first_list.append('Hermione')
first_list.append('Ron')
first_list.append('Severus')

[ManueleVeggi]

The list can be create through this Py code:

hp_list = list()
hp_list.append("Draco")
hp_list.append("Harry")
hp_list.append("Hermione")
hp_list.append("Ron")
hp_list.append("Severus")

Indeed, if we execute the command print(hp_list) the result is ['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']

[OrsolaMBorrini]

new_list=list()
new_list.append("Harry")
new_list.append("Draco")
new_list.append("Hermione")
new_list.append("Ron")
new_list.append("Severus")
print(new_list)

[CarmenSantaniello]

hp_characters_list = list()
hp_characters_list.append("Draco")
hp_characters_list.append("Harry")
hp_characters_list.append("Hermione")
hp_characters_list.append("Ron")
hp_characters_list.append("Severus") 

If we run the list:

print(hp_characters_list)

['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']

[ghasempouri1984]

I used the sort method to sort the list alphabetically.
I wrote a test in order to test my code>

def order_list(listOfWords):
    listOfWords.sort()
    return listOfWords

def test_order_list(mylist, expected):
    ordered = order_list(mylist)
    if ordered == expected:
        return True
    else:
        return False
    
mylist = ["Harry", "Draco", "Hermione", "Ron", "Severus"]
print(test_order_list(mylist, ['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']))
print(order_list(mylist))

[angstigone]

my_hp_list = list()

my_hp_list.append("Draco")
my_hp_list.append("Harry")
my_hp_list.append("Hermione")
my_hp_list.append("Ron")
my_hp_list.append("Severus")

print(my_hp_list)

['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']

[MaddaGh]

[NoraPs]

my_list = list ()
my_list.append ("Harry")
my_list.insert (0,"Draco")
my_list.append ("Hermione")
my_list.append ("Ron")
my_list.append ("Severus")
print(my_list)

['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']

[francescabudel]

my_list = list()
my_list.append("Draco")
my_list.append("Harry")
my_list.append("Hermione")
my_list.append("Ron")
my_list.append("Severus") 


print(my_list)
["Draco", "Harry", "Hermione", "Ron", "Severus"]

[sterenz]

hogwarts_list = list()
hogwarts_list.append("Harry")
hogwarts_list.append("Draco")
hogwarts_list.append("Hermione")
hogwarts_list.append("Ron")
hogwarts_list.append("Severus")

hogwarts_list.sort()
print(hogwarts_list)

[RebeccaJillianBeattie]

harry_potter_list = list()
harry_potter_list.append("Draco")
harry_potter_list.append("Harry")
harry_potter_list.append("Hermione")
harry_potter_list.append("Ron")
harry_potter_list.append("Severus")

harry_potter_list.sort()
or
harry_potter_list = sorted(harry_potter_list)

[olgagolgan]

my_list = list()
my_list.append("Draco")
my_list.append("Harry")
my_list.append("Hermione")
my_list.append("Ron")
my_list.append("Severus")

[SaraVell1]

my _list = list()
my_list.append("Draco")
my_list.append("Harry")
my_list.append("Hermione")
my_list.append("Ron")
my_list.append("Severus")

[chloeppd]

friends_list = list()
friends_list.append("Harry")
friends_list.append("Draco")
friends_list.append("Hermione")
friends_list.append("Ron")
friends_list.append("Severus")

friends_list =sorted(friends_list)

---

print(friends_list) returns the names in alphabetical order

[martasoricetti]

harry_potter_list = list ()
harry_potter_list.append("Draco")
harry_potter_list.append("Harry")
harry_potter_list.append("Hermione")
harry_potter_list.append("Ron")
harry_potter_list.append("Severus")
print(harry_potter_list)

[AnastasiyaSopyryaeva]

Version 1
harry_freinds = ["Harry", "Draco", "Hermione", "Ron", "Severus"]
harry_freinds =sorted(harry_freinds)
print(harry_freinds)

Version 2
harry_freinds = list()
harry_freinds.append("Harry")
harry_freinds.append("Draco")
harry_freinds.append("Hermione")
harry_freinds.append("Ron")
harry_freinds.append("Severus")
harry_freinds =sorted(harry_freinds)
print(harry_freinds)

[PirjoElbrecht]

my_list = ["Harry", "Draco", "Hermione", "Ron", "Severus"]
x=sorted(my_list)
print(x)

[AmeliaLamargese]

#create list and assign to variable
names = list() 
#add names as given in input
names.append("Harry")
names.append("Draco")
names.append("Hermione")
names.append("Ron")
names.append("Severus")
#print the list to check if the names are correctly saved
print(names)
#sort the items in alphabetical order
names.sort()
#print the ordered list to check if it's correct
print(names)

[essepuntato]

Hi,

just a note for @giorgimariachiara and @elizastuglik: try to run your code in Python, and see what happens.

[Bianca-LM]

my_list = list ()
my_list.append("Harry")
my_list.append("Draco")
my_list.append("Hermione")
my_list.append("Ron")
my_list.append("Severus")
my_list = sorted(my_list)
print (my_list)

[sarabecchi]

[Postitisnt]

my_list = []

my_list.append("Severus") 
my_list.append("Harry")
my_list.append("Ron")
my_list.append("Hermione")
my_list.append("Draco")

my_list.sort()

[sanyuezoe]

my_first_list = list()
my_first_list.append("Draco")
my_first_list.append("Harry")
my_first_list.append("Hermione")
my_first_list.append("Ron")
my_first_list.append("Severus")
print(my_first_list)

['Draco', 'Harry', 'Hermione', 'Ron', 'Severus']

[teragramgius]

hp_characters = list()
hp_characters.append ("Draco")
hp_characters.append ("Harry")
hp_characters.append ("Hermione")
hp_characters.append ("Ron")
hp_characters.append ("Severus")

print (hp_characters)