Smooth crash when certificate is not found
% mkNtuples -t JetHT.json
Opening JetHT.json
e03631a86595
Proxy not found: /tmp/x509up_u76092 (No such file or directory)
Traceback (most recent call last):
File "/afs/cern.ch/user/p/paconnor/DAS7/CMSSW_12_4_0/bin/slc7_amd64_gcc10/mkNtuples", line 40, in <module>
if certificate[0] == "0":
IndexError: string index out of range