What serialization format is this, and are there any libraries to parse it back to python-native data structures or at least something easier to manage?
At least it looks like it could have a 1:1 correspondent in python.
%xt%tableFameUpdate%-1%{"season":[1.329534083671E9,"160",53255],"leaderboard":[["1001:6587656216929005792","1718","Kjeld","http:/..."],["1001:6301086609221020111","802","Asti","http://..."],["1018:995158152656680513","419","QiZOra","http://..."],["1018:8494206166685317681","364","Bingay","http://..."],["1:100000380528383","160","...","http://..."]],"multipliers":{"1001:6835768553933918921":67,"1001:4106589374707547411":0,"1001:5353968490097996024":0,"1018:1168770734837476224":0,"1018:8374571792147098127":0,"1001:4225536539330822139":0,"1:100000380528383":0,"1001:4082457720357735190":68,"1001:1650191466786177826":0,"1001:4299232509980238095":38,"1001:7604050184057349633":0,"1001:6587656216929005792":0,"1001:3852516077423175846":0,"1001:888471333619738847":9,"1001:7823244004315560346":0,"1001:7665905871463311833":0,"1001:4453073160237910447":0,"1001:6338802281112620503":64,"1001:7644306056081384910":13,"1001:4956919992342871722":0,"1001:4126528826861913228":29,"1001:7325864606573096759":47,"1001:6494182198787618518":16,"1001:3678910058012926187":4,"1001:435065490460532259":39,"1001:5366593356123167358":0,"1001:6041488907938219046":8,"1001:6051083835382544277":5,"1001:9187877490300372546":0,"1001:482518425014054339":0}}%
if you strip off the first piece and the last percent sign it is json, which you could parse with any json parser. It looks like its using the percent signs as a sort of iterator, you could prolly split on those.