Function to determine list max without itertools

[Dan Sommers]

On 4/19/19 4:01 AM, Sayth Renshaw wrote:
> 
>> Now, what happens when the code is tested with various (different) sets 
>> of test-data?
>> (remember the last question from my previous msg!?)
>> 
> It fails on any list entry that isn't a float or an int, giving a TypeError.

What if the *first* entry isn't a float or an int?  For
instance, what if the list is ['a', 'b', 'c']?  What about
['a', 'b', 3]?

Dan