How to print instances of a class using print()?

Question

I am learning the ropes in Python. When I try to print an object of class Foobar using the print() function, I ge

Answer 1

There are already a lot of answers in this thread but none of them particularly helped me, I had to work it out myself, so I hope this one is a little more informative.

You just have to make sure you have parentheses at the end of your class, e.g:

print(class())

Here's an example of code from a project I was working on:

class Element:
    def __init__(self, name, symbol, number):
        self.name = name
        self.symbol = symbol
        self.number = number
    def __str__(self):
        return "{}: {}\nAtomic Number: {}\n".format(self.name, self.symbol, self.number

class Hydrogen(Element):
    def __init__(self):
        super().__init__(name = "Hydrogen", symbol = "H", number = "1")

To print my Hydrogen class, I used the following:

print(Hydrogen())

Please note, this will not work without the parentheses at the end of Hydrogen. They are necessary.

Hope this helps, let me know if you have anymore questions.