Fix Flakes Errors: openspending/lib/util.py
Fix Flakes Errors: openspending/lib/util.py

johnjohndoe/spendb,pudo/spendb,nathanhilbert/FPA_Core,CivicVision/datahub,pudo/spendb,USStateDept/FPA_Core,USStateDept/FPA_Core,johnjohndoe/spendb,nathanhilbert/FPA_Core,spendb/spendb,openspending/spendb,openspending/spendb,CivicVision/datahub,openspending/spendb,spendb/spendb,spendb/spendb,johnjohndoe/spendb,nathanhilbert/FPA_Core,CivicVision/datahub,pudo/spendb,USStateDept/FPA_Core