Converting list of dictionaries into bytes_stream

Question

I am trying to convert the type of the data fetched from the database into the binary type. The data fetched from the database is in the form of a list. Below is the sample code:

def WriteData(data):

    jsonData = json.dumps(data)
    binaryData = ' '.join(format(ord(letter), 'b') for letter in jsonData)
    print(type(binaryData))
    filePointer = io.BytesIO(binaryData)

The output of the code is:

<class 'str'>

This is really unclear. Why do you need to do this? What is the required output? What is wrong with the code you have? — Daniel Roseman, Nov 21 '17 at 13:21
`binaryData` is a string. So it's perfectly correct that `print(type(binaryData))` prints ``. What were you expecting it to print? And what are you _really_ trying to do? Converting text codepoints to space-separated variable length strings of zeros & ones doesn't seem very useful. — PM 2Ring, Nov 21 '17 at 13:24
If you must do this, why not `binaryData = bytearray(jsonData, encoding='ascii')`? — timgeb, Nov 21 '17 at 13:24

score 0 · Answer 1 · answered Nov 21 '17 at 13:27

I am thinking since BytesIO takes bytes as a parameter you want to convert the json dumped data to bytes. For this you can just use encode() method

def WriteData(data):

    jsonData = json.dumps(data)
    binaryData = jsonData.encode()
    print(type(binaryData))
    filePointer = io.BytesIO(binaryData)

Converting list of dictionaries into bytes_stream

1 Answers1