Do you have alternative simpler way of this code?

Question

The code counts number of letters in a string and returns a dictionary of each letter as a key and the number it appears as value, please implement a simpler solution for me
https://code.sololearn.com/crmlnUeXhGnp/?ref=app

Answer 1

https://code.sololearn.com/cGp4RPQtOXxM/?ref=app

Answer 2

Thanks