Python: how to check if string has the same characters / the probability of repeating them is the same

Question

How to check if the given string has these same characters or their probability is that same, which gives me the True?

For example, if there is string = "aaaa"  my result is True and:

string = "aabb" True

string = "aabbcc" True

p = "1122" True

p = "aaaaBBBB9999$$$$" True

but:

string = "korara" False

p = "33211" False

For "aaa" I can use (len (set ("aaa")) == 1), 

Answer 1

You can try the below code:

from collections import Counter

def check(v):

    return len(set(Counter(v).values())) <= 1

assert check("aabb")

assert check("aabbcc")

assert check("1122")

assert check("aaaaBBBB9999$$$$")

assert check("")

assert not check("korara")

assert not check("33211")

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