Overwrite python function __repr__ and __str__

overwrite_repr_str.py

class CustomFunction:
    def __init__(self, func):
        self.func = func
    
    def __call__(self, *args, **kwargs):
        return self.func(*args, **kwargs)
    
    def __str__(self):
        return "A custom function"
    
    def __repr__(self):
        return "<custom function>"

def my_function(name):
    return f"Hello {name}!"

my_function = CustomFunction(my_function) # You can also use @CustomFunction decorator directly on the function declaration

print(my_function("John")) # => Hello John!

list_for_testing_repr = [my_function]

print(list_for_testing_repr) # => [<custom function>]
print(my_function) # => "A custom function"