Description of problem: Looks like the package still requires python 3.6 (3.7 is new default). In my build (which requirese the package) this is happening: DEBUG util.py:439: Error: DEBUG util.py:439: Problem 1: conflicting requests DEBUG util.py:439: - nothing provides python(abi) = 3.6 needed by python3-keystoneclient-1:3.13.0-2.fc28.noarch Looking into the last build, there is: [...] usage: setup.py [OPTIONS] -o <OUTPUT_PATH> <MODULE_PATH> [EXCLUDE_PATTERN, ...] setup.py: error: argument -o/--output-dir is required RPM build errors: error: Bad exit status from /var/tmp/rpm-tmp.gDgiUB (%install) Bad exit status from /var/tmp/rpm-tmp.gDgiUB (%install) Child return code was: 1 EXCEPTION: [Error()] Traceback (most recent call last): File "/usr/lib/python3.6/site-packages/mockbuild/trace_decorator.py", line 89, in trace result = func(*args, **kw) File "/usr/lib/python3.6/site-packages/mockbuild/util.py", line 582, in do raise exception.Error("Command failed. See logs for output.\