It Runs Perfectly, Gives Error when you Debug

Question

For Python --> Module 7: Object Oriented Programming --> Class & Static Methods, the examples are interesting. When I run them both, they give the results shown. But when I debug them, they actually give me an error.

Example for Class Methods
class Rectangle:
def __init__(self, width, height):
self.width = width
self.height = height

def calculate_area(self):
return self.width * self.height

@classmethod
def new_square(cls, side_length):
return cls(side_length, side_length)

square = Rectangle.new_square(5)
print(square.calculate_area())

Example for Static Methods:
class Pizza:
def __init__(self, toppings):
self.toppings = toppings

@staticmethod
def validate_topping(topping):
if topping == "pineapple":
raise ValueError("No pineapples!")
else:
return True

ingredients = ["cheese", "onions", "spam"]
if all(Pizza.validate_topping(i) for i in ingredients):
pizza = Pizza(ingredients)

When I run the Class Method code, it gives me 25 as usual, but this is not the case in debugging. The error it gives is really various based on the IDE. For Thonny, it gives AttributeError: 'CustomStackFrame' object has no attribute 'node_tags'.

For Python IDLE, it gives a different kind of error: Invalid Character in Identifier

Can someone please explain if the program is right, or if it is wrong?

Answer 1

Code looks okay to me! Maybe it was a problem with how the debugger was run? I don't normally use a debugger for Python, so I can't say for sure. But it worked fine with pdb ( https://docs.python.org/3/library/pdb.html ) and ptvsd (for VS Code) in my computer.

Answer 2

What does your debugging mean?

What is the Python version of your IDE and IDLE?

Have you removed the @ lines before running?

Answer 3

Python 3

I need the @ lines to define them as class and static methods

Answer 4

I don't entirely understand what your question is, but I'll ask for help for you.
Kishalaya Saha