Python multiline regex + multi entries reading a file in one go

//Last modified: Sat, Apr 16, 2011 09:55:04 AM
//Codeset: ISO-8859-1
fileInfo "version" "20x64";
createNode newnode -n "a_SET";
    addAttr -ci true -k true -sn "connections" -ln "connections" -dt "string";
    setAttr -l on -k off ".tx";
    setAttr -l on -k off ".ty";
    setAttr -l on -k off ".sz";
    setAttr -l on -k on ".test1" -type "string" "blabla";
    setAttr -l on -k on ".test2" -type "string" "blablabla";
createNode newnode -n "b_SET";
    addAttr -ci true -k true -sn "connections" -ln "connections" -dt "string";
    setAttr -l on -k off ".tx";
    setAttr -l on -k off ".ty";
    setAttr -l on -k off ".sz";
    setAttr -l on -k on ".test1" -type "string" "hmm";
    setAttr -l on -k on ".test2" -type "string" "ehmehm";
//Last modified: Sat, Apr 16, 2011 09:55:04 AM