very witty

Why is creating a new object successful for this Kata whereas if chars[index] = chars[index].upper() is used all outputs are Uppercase?

cool, thanks :)

but it does not work in the real world right?
i think its a bit confusing

The tests call your function.

how does it work?
dont you actually have to call the function?

Here's a quick breakdown comparing:

x = y

x = y[:]

x = y.copy()

https://www.programiz.com/python-programming/methods/list/copy

yes, [:] creates a new object

Yes, the last is another reference to the same list, not a copy at all.

Is there difference between copy = chars[:] and copy = chars?

def dot_product(a, b):
    for d in dir(a):
        print(d)
    # code
    return -1

How do you guys get the list of attributes for an object in Python. I am trying to use dir() function to get the list of attributes, but I am not sure how to use it in this enviroment. Would appreciate any help.

Yes it has nothing to do with mean. This was create to calculate Statistical Mode of a data set. I did not find many problems in statistics, that was the main reason to create this problem. I would appreciate if you can share some of the duplicates and help to create random tests.

• The kata has nothing to do with calculating the mean
• No random tests
• Duplicate of all the other "count all elements" katas