what does the len function do in python
Len (programming) In Python, len() can be used to denote the length of a string:
Exponentiation Any nonzero number raised to the 0 power is 1:[11]
1 + 2 + 3 + 4 + ⋯ which increases without bound as n goes to infinity. Because the sequence of partial sums fails to converge to a finite limit, the series does not have a sum.
Ä Ä (lower case ä) is a character that represents either a letter from several extended Latin alphabets, or the letter A with an umlaut mark or diaeresis.