$ ./python -m test test_format
Using random seed: 982853282
0:00:00 load avg: 2.14 Run 1 test sequentially
0:00:00 load avg: 2.14 [1/1] test_format
Unexpected  <class 'TypeError'> : '%c requires an integer in range(256) or a single byte, not a bytes object of length 2'
Unexpected  <class 'TypeError'> : '%c requires an integer in range(256) or a single byte, not str'
Unexpected  <class 'TypeError'> : '%c requires an integer in range(256) or a single byte, not float'
Unexpected  <class 'TypeError'> : '%c requires an int or a unicode character, not float'
Unexpected  <class 'TypeError'> : '%c requires an int or a unicode character, not a string of length 2'
Unexpected  <class 'TypeError'> : '%c requires an int or a unicode character, not bytes'

== Tests result: SUCCESS ==

1 test OK.

Total duration: 171 ms
Total tests: run=18
Total test files: run=1/1
Result: SUCCESS