Update experiment.py
Update experiment.py

Something is very wrong in the other 1690 branch.  I am abandoning it and just bringing over this very simple code.
ENCODE-DCC/snovault,ENCODE-DCC/encoded,hms-dbmi/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,T2DREAM/t2dream-portal,ENCODE-DCC/encoded,kidaa/encoded,4dn-dcic/fourfront,kidaa/encoded,kidaa/encoded,T2DREAM/t2dream-portal,philiptzou/clincoded,philiptzou/clincoded,philiptzou/clincoded,ClinGen/clincoded,ClinGen/clincoded,kidaa/encoded,4dn-dcic/fourfront,4dn-dcic/fourfront,hms-dbmi/fourfront,ClinGen/clincoded,hms-dbmi/fourfront,ENCODE-DCC/snovault,ENCODE-DCC/encoded,ENCODE-DCC/encoded,ENCODE-DCC/snovault,ENCODE-DCC/snovault,ENCODE-DCC/snovault,hms-dbmi/fourfront,ClinGen/clincoded,philiptzou/clincoded,ClinGen/clincoded,kidaa/encoded,philiptzou/clincoded,T2DREAM/t2dream-portal,T2DREAM/t2dream-portal