i is not awailable on this stage. smallest = arr[0] can be used

Short code isn't 'good code' if it's several orders of magnitude slower at the end of the day.

short code is good code

This solution was submitted for older version of the test framework. You need to run it with python 3.6

Doh, right.
But why can't I fork and run it'?

Traceback (most recent call last):
  File "tests.py", line 6, in <module>
    @Test.describe("Basic")
NameError: name 'Test' is not defined

Damn you're right, I thought it worked in python, but the code is slightly different.

ShouldPassAllTheTestsProvided (7 of 7 Assertions)

You should but you don't; there are more tests than 7... Not a kata issue. If you are timing out either your code is too slow or you have an infinite loop.

This fails on 2.

The Python way?
Import a c-based module and let it do the heavy lifting?