Follow-up from #5 (comment)

Hi, I had to back out test_whole_domain as the test was failing on the import statement when built and run by travis and on my local Mac.

$ python ff3/ff3_test.py
ERROR: test_whole_domain (main.TestFF3)

Traceback (most recent call last):
File "/Users/brad/mysto/python-fpe/ff3/ff3_test.py", line 230, in test_whole_domain
perm = [int(reverse_string(
File "/Users/brad/mysto/python-fpe/ff3/ff3_test.py", line 231, in
c.decrypt(c.encrypt(
File "/Users/brad/mysto/python-fpe/ff3/ff3.py", line 126, in encrypt
return self.encrypt_with_tweak(plaintext, self.tweak)
File "/Users/brad/mysto/python-fpe/ff3/ff3.py", line 176, in encrypt_with_tweak
raise ValueError(f"message length {n} is not within min {self.minLen} and max {self.maxLen} bounds")
ValueError: message length 10 is not within min 20 and max 192 bounds

https://app.travis-ci.com/github/mysto/python-fpe/jobs/539306809