Description of problem:
Package mchange-commons fails to build from source in Fedora rawhide.

Executing(%build): /bin/sh -e /var/tmp/rpm-tmp.NzY3ol
+ umask 022
+ cd /builddir/build/BUILD
+ cd mchange-commons-java-mchange-commons-java-0.2.11
+ ./climbing-nemesis.py com.typesafe config any ivy-local --version 1.2.1
BUILDSTDERR: Traceback (most recent call last):
BUILDSTDERR:   File "./climbing-nemesis.py", line 19, in <module>
BUILDSTDERR:     import StringIO
BUILDSTDERR: ModuleNotFoundError: No module named 'StringIO'
BUILDSTDERR: error: Bad exit status from /var/tmp/rpm-tmp.NzY3ol (%build)
BUILDSTDERR:     Bad exit status from /var/tmp/rpm-tmp.NzY3ol (%build)

This is a result of https://fedoraproject.org/wiki/Changes/Python_means_Python3

The file should be executed by Python 2. Note that the package will eventually need to be retired or fixed before https://fedoraproject.org/wiki/Changes/RetirePython2

Version-Release number of selected component (if applicable):
0.2.11-8.fc31

Steps to Reproduce:
koji build --scratch f31 mchange-commons-0.2.11-8.fc31.src.rpm

Additional info:
This package is tracked by Koschei. See:
http://apps.fedoraproject.org/koschei/package/mchange-commons