JSON-Analyse von ADSB-Daten

Codierung mit Wing IDE. Wenn er meinen Code ausführt, öffnet er decoder.py und stellt den folgenden Fehler bereit: Datei "C: \ Python27 \ Lib \ json \ decoder.py", Zeile 367, in decode erhöhen ValueError (errmsg ("Extra data", s, Ende, len (s))) Valueerror: extra Daten: Zeile 1 Spalte 341 - Zeile 29 Spalte 1 (char 340 - 15199)JSON-Analyse von ADSB-Daten

ich um google geschaut habe und so, aber nicht gewesen Ich bin in der Lage, eine Grundursache mit meinem konkreten Beispiel zu vergleichen. Irgendwelche Ideen?

Das Endziel besteht darin, ADS-B-Daten von adsbexchange zu parsen. Für den Rekord, ersetzte ich auch die letzte Druckzeile durch etwas einfacheres wie print parsed_json, aber die Ergebnisse waren die gleichen.

import json 

json_string = """{"Id":3429058,"Rcvr":11182,"HasSig":true,"Sig":6,"Icao":"3452C2","Bad":false,"FSeen":"\/Date(1512567030924)\/","CMsgs":2,"AltT":0,"Tisb":false,"TrkH":false,"Sqk":"","VsiT":0,"WTC":0,"Species":0,"EngType":0,"EngMount":0,"Mil":false,"Cou":"Spain","HasPic":false,"Interested":false,"FlightsCount":0,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}, 
{"Id":4509293,"Rcvr":13019,"HasSig":false,"Icao":"44CE6D","Bad":false,"Reg":"OO-SSM","FSeen":"\/Date(1512567029549)\/","TSecs":1,"CMsgs":1,"Alt":23700,"GAlt":23700,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A319","Mdl":"Airbus A319 112","Man":"Airbus","CNum":"1388","Op":"Brussels Airlines","OpIcao":"BEL","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Belgium","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2000"}, 
{"Id":4960709,"Rcvr":11071,"HasSig":true,"Sig":15,"Icao":"4BB1C5","Bad":false,"Reg":"TC-LNE","FSeen":"\/Date(1512567029189)\/","TSecs":1,"CMsgs":4,"Alt":41000,"GAlt":41000,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A333","Mdl":"Airbus A330 303","Man":"Airbus","CNum":"1706","Op":"Turkish Airlines","OpIcao":"THY","Sqk":"","VsiT":0,"WTC":3,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Turkey","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2015"}, 
{"Id":11260420,"Rcvr":11012,"HasSig":true,"Sig":30,"Icao":"ABD204","Bad":false,"Reg":"N8606C","FSeen":"\/Date(1512567029096)\/","TSecs":2,"CMsgs":1,"AltT":0,"Tisb":false,"TrkH":false,"Type":"B738","Mdl":" BOEING 737-8H4","Man":"Boeing","CNum":"35964","Op":"Southwest Airlines","OpIcao":"SWA","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"United States","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}, 
""" 

parsed_json = json.loads(json_string) 

print(parsed_json['Type'])

Quelle

2017-12-08 OutlawBandit

Ihre JSON-String ungültig ist.

import json 
json_string = """[{"Id":3429058,"Rcvr":11182,"HasSig":true,"Sig":6,"Icao":"3452C2","Bad":false,"FSeen":"\/Date(1512567030924)\/","CMsgs":2,"AltT":0,"Tisb":false,"TrkH":false,"Sqk":"","VsiT":0,"WTC":0,"Species":0,"EngType":0,"EngMount":0,"Mil":false,"Cou":"Spain","HasPic":false,"Interested":false,"FlightsCount":0,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}, 
{"Id":4509293,"Rcvr":13019,"HasSig":false,"Icao":"44CE6D","Bad":false,"Reg":"OO-SSM","FSeen":"\/Date(1512567029549)\/","TSecs":1,"CMsgs":1,"Alt":23700,"GAlt":23700,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A319","Mdl":"Airbus A319 112","Man":"Airbus","CNum":"1388","Op":"Brussels Airlines","OpIcao":"BEL","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Belgium","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2000"}, 
{"Id":4960709,"Rcvr":11071,"HasSig":true,"Sig":15,"Icao":"4BB1C5","Bad":false,"Reg":"TC-LNE","FSeen":"\/Date(1512567029189)\/","TSecs":1,"CMsgs":4,"Alt":41000,"GAlt":41000,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A333","Mdl":"Airbus A330 303","Man":"Airbus","CNum":"1706","Op":"Turkish Airlines","OpIcao":"THY","Sqk":"","VsiT":0,"WTC":3,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Turkey","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2015"}, 
{"Id":11260420,"Rcvr":11012,"HasSig":true,"Sig":30,"Icao":"ABD204","Bad":false,"Reg":"N8606C","FSeen":"\/Date(1512567029096)\/","TSecs":2,"CMsgs":1,"AltT":0,"Tisb":false,"TrkH":false,"Type":"B738","Mdl":" BOEING 737-8H4","Man":"Boeing","CNum":"35964","Op":"Southwest Airlines","OpIcao":"SWA","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"United States","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}] 
""" 
parsed_json = json.loads(json_string) 

for i in parse_json: 
    if "Type" in i: 
     print (i['Type'])

Quelle

2017-12-08 03:14:51 Martin

Also, wenn ich mehr ADS-B Feed hinzufügen, die alle die gleichen Daten sein sollten, komme ich mit einem UnicodeDecodeError. Ich überprüft, um sicherzustellen, dass die eckigen Klammern an der gleichen Stelle wie Ihr Beispiel sind, aber keine Freude. – OutlawBandit

Hier ist mein Beispiel, wo ich weitere Daten hinzufügen: https://pastebin.com/ce63GZ0P Ich schaute über die json.org Seite auf Formatierung, aber ich kann nicht sehen, wo ich falsch liege. – OutlawBandit

@OutlawBandit Sie sollten kein Komma nach dem letzten Objekt einfügen. also sollte das Ende '}]' sein und nicht '},]' –

Ihre JSON-Zeichenfolge ist falsch. Es enthält ein Array von Objekten, die innerhalb der eckigen [] Klammern stehen sollten.

Ihre JSON-String ändern zu

json_string = """[{"Id":3429058,"Rcvr":11182,"HasSig":true,"Sig":6,"Icao":"3452C2","Bad":false,"FSeen":"\/Date(1512567030924)\/","CMsgs":2,"AltT":0,"Tisb":false,"TrkH":false,"Sqk":"","VsiT":0,"WTC":0,"Species":0,"EngType":0,"EngMount":0,"Mil":false,"Cou":"Spain","HasPic":false,"Interested":false,"FlightsCount":0,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}, 
{"Id":4509293,"Rcvr":13019,"HasSig":false,"Icao":"44CE6D","Bad":false,"Reg":"OO-SSM","FSeen":"\/Date(1512567029549)\/","TSecs":1,"CMsgs":1,"Alt":23700,"GAlt":23700,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A319","Mdl":"Airbus A319 112","Man":"Airbus","CNum":"1388","Op":"Brussels Airlines","OpIcao":"BEL","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Belgium","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2000"}, 
{"Id":4960709,"Rcvr":11071,"HasSig":true,"Sig":15,"Icao":"4BB1C5","Bad":false,"Reg":"TC-LNE","FSeen":"\/Date(1512567029189)\/","TSecs":1,"CMsgs":4,"Alt":41000,"GAlt":41000,"AltT":0,"Tisb":false,"TrkH":false,"Type":"A333","Mdl":"Airbus A330 303","Man":"Airbus","CNum":"1706","Op":"Turkish Airlines","OpIcao":"THY","Sqk":"","VsiT":0,"WTC":3,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"Turkey","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1,"Year":"2015"}, 
{"Id":11260420,"Rcvr":11012,"HasSig":true,"Sig":30,"Icao":"ABD204","Bad":false,"Reg":"N8606C","FSeen":"\/Date(1512567029096)\/","TSecs":2,"CMsgs":1,"AltT":0,"Tisb":false,"TrkH":false,"Type":"B738","Mdl":" BOEING 737-8H4","Man":"Boeing","CNum":"35964","Op":"Southwest Airlines","OpIcao":"SWA","Sqk":"","VsiT":0,"WTC":2,"Species":1,"Engines":"2","EngType":3,"EngMount":0,"Mil":false,"Cou":"United States","HasPic":false,"Interested":false,"FlightsCount":0,"Gnd":false,"SpdTyp":0,"CallSus":false,"TT":"a","Trt":1}] 
"""

Quelle

2017-12-08 03:13:37

JSON-Analyse von ADSB-Daten

Antwort

Verwandte Themen