convert json perline to panads data frame

Sometimes we have a file that contains a json object per line. For example log file in json format

{foo: 1, bar: 2}
{foo: 3, bar: 4}

if we want to read this in python pandas we need to convert it to

[
  {foo: 1, bar: 2},
  {foo: 3, bar: 4}
]

easy way to do this is with jq --slurp

$ cat file.json | jq --slurp . > one_array.json

then you can read it in python pandas (notebook) like this

sf = pd.read_json('one_array.json')