Question: Write the function lettersOnly(s) that takes in a string called s, and returns a string containing only the alphabetic characters of s. Sample Input Sample

Write the function lettersOnly(s) that takes in a string called s, and returns a string containing only the alphabetic characters of s.

Sample Input Sample Output

s = CS103 is kind of fun. CSiskindoffun

s = Spaces and punctuation dont count! Spacesandpunctuationdontcount

s = This is Hw3 ThisisHw

Python answer only!

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