trying to understand classes better

error-classes-review.py

"""
ERRORS
A. print(Triangle.mytriangle_area(self)) = NameError: name 'self' is not defined
B. print(Triangle.mytriangle_area()) = TypeError: mytriangle_area() missing 1 required positional argument: 'self'   (SEE LINE with comments BELOW)
C. print(Triangle.mytriangle_area) = prints out '<function Triangle.mytriangle_area at 0x7f8f1a5fb620>' 
"""

# ----------------------------------------------

import math

class Triangle:
    def __init__(self, base, height):
        self.base = base
        self.height = height

    def triangle_area(self):
        return (self.base/2)*self.height


goofy = Triangle(23.5, 35.4)
print(goofy.triangle_area())

Line 10 - You can remove the () after 'Triangle'
Line 11- add a space after each comma
Line 12 - add a space on either side of '='
Line 13 - same as line 12
Line 16 - add a space on either side of '/' and '*'
Line 19 - add a space on either side of '=' and after the comma
Errors:
A. you don't put 'self' in the arguments when calling it.
B. You never defined Triangle in the program outside of the class. You would have to put a base and height just like in line 19 when you defined a variable using the Triangle class.
C. You are asking to print the memory location of where the function mytriangle_area is residing inside of the class Triangle instead of trying to run the function from the class.
About the self.base and self.height. That is (according to my limited understanding) the function inside the class Triangle to associate those with the arguments from the init function.