1. Consider the following code:
def is_palindrome(n):
# checks if a given integer is a palindrome.
# Returns True if it is, and False if it is not.
# e.g., 121 is a palindrome, but 122 is not
return str(n) == str(n)[::-1]
Python functions will try to work with what you give them. Although the documentation for is_palindrome clearly says that it checks if an integer is palindromic, there’s nothing to stop you from doing the following:
>>> is_palindrome(3.3)
True
What do you think is_palindrome should do when you pass it a float instead of an int?
(a) Raise an error and stop the program
(b) Print a warning message, but continue anyway
(c) Nothing – extra functionality is a good thing
(d) Return None
(e) Something else
2.
Here are a couple of tests for this code:
assert(is_palindrome(121) == True)
assert(is_palindrome(122) == False)
What are some other tests you can think of for is_palindrome? Can you think of tests that it will fail? If so, what changes would you make to is_palindrome so that it can pass those tests?