raise ValueError(errmsg("Extra data", s, end, len(s))) ValueError: Extra data: line 2 column 1 - line 10 column 1 (char 261900 - 6964758) PS. I use the word record, but that's not the official name. Also, if your file has newline characters like mine, you can loop through it to loads() one record at a time into a json variable. More @Wikipedia
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