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Update is_palindrome.py (#2025)

* Update is_palindrome.py

* Update is_palindrome.py

* Reuse s

Co-authored-by: Christian Clauss <cclauss@me.com>
A
Ashwin Das committed
d8a4faf96d940737ddc488aa8817bc3563ab1a82
Parent: a15f825
Committed by GitHub <noreply@github.com> on 5/22/2020, 9:57:23 AM