无法从Twitter数据集中提取数据

Question

尝试从JSON中提取Extended_Tweet。这是我正在使用的代码。它一直给我错误。我该如何做得更好？

def process(inputfn, outputfn):
report = []
for line in open(inputfn):
    ob = json.loads(line)
    try:
        data = tweet['extended_tweet']['full_text'] "").replace("\n", " ").replace("  ", " ").strip()
    except KeyError as e:
        print(e)
        data = tweet['stuff']
    user = ob.get("user")
    username = "unknown"

    if user:
        username = user.get("screen_name", "")
    msg = u"%s: %s" % (username, text)
    report.append(msg)

with codecs.open(outputfn, "w", "utf8") as f:
    f.write("\n".join(report))

if __name__ == "__main__":
process("data/test.json", "data/stream_test-part-tweets.txt")

修改：链接到pastebin：https://pastebin.com/KTHwD5E5  新编辑：添加了更新的代码：链接：https://pastebin.com/Uf0Nb3bg