[...]

creating build-3/lib/urllib3/contrib/_securetransport
copying urllib3/contrib/_securetransport/low_level.py -> build-3/lib/urllib3/contrib/_securetransport
copying urllib3/contrib/_securetransport/bindings.py -> build-3/lib/urllib3/contrib/_securetransport
copying urllib3/contrib/_securetransport/__init__.py -> build-3/lib/urllib3/contrib/_securetransport
creating build-3/lib/urllib3/util
copying urllib3/util/connection.py -> build-3/lib/urllib3/util
copying urllib3/util/retry.py -> build-3/lib/urllib3/util
copying urllib3/util/timeout.py -> build-3/lib/urllib3/util
copying urllib3/util/response.py -> build-3/lib/urllib3/util
copying urllib3/util/queue.py -> build-3/lib/urllib3/util
copying urllib3/util/url.py -> build-3/lib/urllib3/util
copying urllib3/util/wait.py -> build-3/lib/urllib3/util
copying urllib3/util/request.py -> build-3/lib/urllib3/util
copying urllib3/util/__init__.py -> build-3/lib/urllib3/util
copying urllib3/util/ssl_.py -> build-3/lib/urllib3/util
+ /usr/bin/make -j8 -C docs html 'SPHINXOPTS='
make: Entering directory '/tmp/B.ve5_ZF/BUILD/urllib3-1.23/docs'
sphinx-build -b html -d _build/doctrees   . _build/html
Running Sphinx v1.7.6
Configuration error:
There is a programable error in your configuration file:
Traceback (most recent call last):
  File "/usr/share/python3.7/site-packages/sphinx/config.py", line 161, in __init__
    execfile_(filename, config)
  File "/usr/share/python3.7/site-packages/sphinx/util/pycompat.py", line 150, in execfile_
    exec_(code, _globals)
  File "conf.py", line 30, in <module>
    import mock
ModuleNotFoundError: No module named 'mock'
make: *** [Makefile:40: html] Error 2
make: Leaving directory '/tmp/B.ve5_ZF/BUILD/urllib3-1.23/docs'
error: Bad exit status from /tmp/B.ve5_ZF/BUILD/tmp/rpm-tmp.51726 (%build)
RPM build errors:
    Bad exit status from /tmp/B.ve5_ZF/BUILD/tmp/rpm-tmp.51726 (%build)
ended at: Fri Aug 24 23:13:57 2018, done in 0:00:01.188403
error: No files produced.
mesg: ttyname failed: Inappropriate ioctl for device
+ chmod -R u+rwX /tmp/B.ve5_ZF/BUILD
+ rm -rf /tmp/B.ve5_ZF/tmp /tmp/B.ve5_ZF/BUILD
mesg: ttyname failed: Inappropriate ioctl for device
+ rm -rf /tmp/B.ve5_ZF
Begin-TLD-Builder-Info
Build-Time: user:1.46s sys:0.21s real:2.55s (faults io:0 non-io:104325)
End-TLD-Builder-Info