[...]

running build_ext
test_iso8601 (unittest.loader._FailedTest) ... ERROR
iso8601.test_iso8601 (unittest.loader._FailedTest) ... ERROR
======================================================================
ERROR: test_iso8601 (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: test_iso8601
Traceback (most recent call last):
  File "/usr/lib64/python3.6/unittest/loader.py", line 153, in loadTestsFromName
    module = __import__(module_name)
  File "/tmp/B.Ha2gpM/BUILD/iso8601-0.1.11/iso8601/test_iso8601.py", line 8, in <module>
    import pytest
ModuleNotFoundError: No module named 'pytest'
======================================================================
ERROR: iso8601.test_iso8601 (unittest.loader._FailedTest)
----------------------------------------------------------------------
ImportError: Failed to import test module: iso8601.test_iso8601
Traceback (most recent call last):
  File "/usr/lib64/python3.6/unittest/loader.py", line 428, in _find_test_path
    module = self._get_module_from_name(name)
  File "/usr/lib64/python3.6/unittest/loader.py", line 369, in _get_module_from_name
    __import__(name)
  File "/tmp/B.Ha2gpM/BUILD/iso8601-0.1.11/iso8601/test_iso8601.py", line 8, in <module>
    import pytest
ModuleNotFoundError: No module named 'pytest'
----------------------------------------------------------------------
Ran 2 tests in 0.000s
FAILED (errors=2)
error: Bad exit status from /tmp/B.Ha2gpM/BUILD/tmp/rpm-tmp.19800 (%build)
RPM build errors:
    Bad exit status from /tmp/B.Ha2gpM/BUILD/tmp/rpm-tmp.19800 (%build)
ended at: Thu Jan 25 17:36:53 2018, done in 0:00:06.207482
error: No files produced.
mesg: ttyname failed: Inappropriate ioctl for device
+ chmod -R u+rwX /tmp/B.Ha2gpM/BUILD
+ rm -rf /tmp/B.Ha2gpM/tmp /tmp/B.Ha2gpM/BUILD
mesg: ttyname failed: Inappropriate ioctl for device
+ rm -rf /tmp/B.Ha2gpM
Begin-TLD-Builder-Info
Build-Time: user:0.98s sys:0.17s real:6.98s (faults io:18 non-io:87552)
End-TLD-Builder-Info