[...]

+ CC=x86_64-tld-linux-gcc 
+ export CC
+ CXX=x86_64-tld-linux-g++ 
+ export CXX
+ /usr/bin/python setup.py build '--build-base=build-2'
running build
running build_py
creating build-2
creating build-2/lib
creating build-2/lib/atomicwrites
copying atomicwrites/__init__.py -> build-2/lib/atomicwrites
running egg_info
writing atomicwrites.egg-info/PKG-INFO
writing top-level names to atomicwrites.egg-info/top_level.txt
writing dependency_links to atomicwrites.egg-info/dependency_links.txt
reading manifest file 'atomicwrites.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
no previously-included directories found matching 'docs/_build'
warning: no previously-included files matching '*.py[cdo]' found anywhere in distribution
warning: no previously-included files matching '__pycache__' found anywhere in distribution
warning: no previously-included files matching '*.so' found anywhere in distribution
warning: no previously-included files matching '*.pyd' found anywhere in distribution
writing manifest file 'atomicwrites.egg-info/SOURCES.txt'
+ /usr/bin/python -m pytest tests
Traceback (most recent call last):
  File "/usr/lib64/python2.7/runpy.py", line 174, in _run_module_as_main
    "__main__", fname, loader, pkg_name)
  File "/usr/lib64/python2.7/runpy.py", line 72, in _run_code
    exec code in run_globals
  File "/usr/share/python2.7/site-packages/pytest.py", line 9, in <module>
    from _pytest.config import main, UsageError, cmdline, hookspec, hookimpl
  File "/usr/share/python2.7/site-packages/_pytest/config/__init__.py", line 17, in <module>
  File "/usr/share/python2.7/site-packages/_pytest/_code/__init__.py", line 3, in <module>
  File "/usr/share/python2.7/site-packages/_pytest/_code/code.py", line 7, in <module>
    
ImportError: No module named attr
error: Bad exit status from /tmp/B.nFyag8/BUILD/tmp/rpm-tmp.63854 (%build)
RPM build errors:
    Bad exit status from /tmp/B.nFyag8/BUILD/tmp/rpm-tmp.63854 (%build)
ended at: Sat Aug 24 20:27:22 2019, done in 0:00:00.520251
error: No files produced.
+ chmod -R u+rwX /tmp/B.nFyag8/BUILD
+ rm -rf /tmp/B.nFyag8/tmp /tmp/B.nFyag8/BUILD
+ rm -rf /tmp/B.nFyag8
Begin-TLD-Builder-Info
Build-Time: user:0.67s sys:0.16s real:1.25s (faults io:0 non-io:82930)
End-TLD-Builder-Info