hash = {"123": {"hola":{"wassup":9}}}
sip = "123"
dip = "hola"
dport = "wassup"

if not hash.get(sip):
    hash[sip] = {dip :{ dport: 5}}
if not hash.get(sip).get(dip):
    hash[sip][dip] = {dport:1}
    print "hola"
if not hash.get(sip).get(dip).get(dport):
    hash[sip][dip][dport] = 7
else:
    hash[sip][dip][dport] +=1

print hash