CODEWITHSUNDEEP
pythonclassprinting
Aatu Tahkola
Aatu Tahkola

Reputation: 35

Why don't I get any output from this code?

class Friend:

    def __init__(self,fullname,domicile):
        self.fullname = fullname
        self.domicile = domicile
    
    
    def __repr__(self):
        return ('Friend {}'.format(self.fullname))
    
    
    def first_letter(self):
        firstletter = self.fullname[0]
        print (firstletter)
        return firstletter
    
fnd_1 = Friend('Emilia Asikainen', 'Kintsu')
fnd_2 = Friend('Edi Eskola', 'Muurame')
fnd_3 = Friend('Esa Simonen', 'Jämsä')
fl = ''
fl = fnd_1.first_letter
print(fl)

if fnd_1.first_letter == fnd_2.first_letter and fnd_2.first_letter == fnd_3.first_letter:
    print('Do you have a thing with letter {}?'.format(fnd_1.first_letter))

So when I run this code, it doesn't print anything. The only output I get is

Why does my code do this and how can I fix it? I want to get those print methods to work.

Upvotes: 1

Views: 43

Answers (2)

Leniork
Leniork

Reputation: 75

You simply forgot to invoke your function everywhere.
To invoke function you should put () after name of a function.
For example replace fl = fnd_1.first_letter with fl = fnd_1.first_letter()
And same for fnd_2 and fnd_3.

Upvotes: 0

Random Davis
Random Davis

Reputation: 6857

The statement if fnd_1.first_letter == fnd_2.first_letter and fnd_2.first_letter == fnd_3.first_letter is not correct, because you're comparing the functions themselves, rather than the output. For instance, fnd_1.first_letter is a function; if you want to actually run the function, and get its result, you have to use the following syntax: fnd_1.first_letter(). Adding the parentheses is necessary in order to actually call a function.

So, if you change your code to correctly call the functions, the relevant part would look like:

fl = fnd_1.first_letter()
print(fl)

if fnd_1.first_letter() == fnd_2.first_letter() and fnd_2.first_letter() == fnd_3.first_letter():
    print('Do you have a thing with letter {}?'.format(fnd_1.first_letter()))

And the output is:

E
E
E
E
E
E
E
Do you have a thing with letter E?

Upvotes: 1

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