Exercise 1

Write a script that given a topic such as car via input will go to the wikipedia page for that topic and print out the first line and then ask for more input until the user types in "done"

$ python my_script.py
Please enter a topic: car
A car (or automobile) is a wheeled motor vehicle used for transportation.
Please enter a topic: done
Goodbye.
        

print('What would you like to learn about?')
learn = True
while learn:
    page = str(input('>').lower())
    if page != 'done':
        wiki = requests.get("https://en.wikipedia.org/wiki/"+str(page))
        soup = BeautifulSoup(wiki.text, 'html.parser')
        Z = soup.body.table.next_sibling.next_sibling
        text = Z.get_text()
        text = str(text)
        sentence = text.split('.')
        print(sentence[0] + '.')
        print('what else?')

    else:
        learn = False
        print("\nGoodbye")
    

Exercise 2

Write a function that given some key word arguments and a format string prints out a formated string

magic("a b c",a=1,b="hello",c="woah") # returns "1 hello woah"
magic("i love name",name="python") # returns "i love python"
        

Hint: you can use the string function `.replace`

def magic(string, **kargs):
    separate = string.split()
    for i, element in enumerate(separate):
        try:
            separate[i]=kargs[element]
        except:
            pass
    print(" ".join(separate))
    

Exercise 3

given a csv file as shown below write a function to read in the file and print out the average of each students marks

Name,Exam1,Exam2,Exam3
suzy,12/14,13/14,10/10
ben,2/14,1/14,0/10
simon,0/14,0/14,0/10

suzy: 92.86%
ben: 7.14%
simon: 0.00%
    

Do this both hand and with the csv module

def average(mark):
    names = []
    marks = []
    # without csv module, will not cover all cases of csv's
    with open(mark) as f:
        lines = f.readlines()[1:]
        for line in lines:
            row = line.split(",")
            # fair warning, eval is nice for cases like this
            # but you should _never_ use it in production code
            average = sum([eval(x) for x in row[1:]])/len(row[1:])
            print(f'{row[0]}: {round(average,2)}%')
def average(mark):
    with open(mark) as f:
        reader = csv.reader(f)
        next(reader, None)
        for row in reader:
          print(f'{row[0]}: {round(average,2)}%')
    

Exercise 4 (optional)

Write a script that when given 2 wikipedia topics as a command line arguments will print out if you can get from the first article to the second i.e is there a link to the second page from the first

python my_script.py Car Motor_vehicle
True