python - django bytesIO to base64 String & return as JSON -

i using python 3 & have code, trying base64 out of stream , returnn json - not working.

       stream = bytesio()        img.save(stream,format='png')        return base64.b64encode(stream.getvalue())

in view, have:

hm =mymap()     strhm = hm.generate(data) return httpresponse(json.dumps({"img": strhm}),content_type="application/json"  )

getting error not json serializable. base64.b64encode(stream.getvalue()) seems giving bytes

in python 3.x, base64.b64encode accepts bytes object , returns bytes object.

>>> base64.b64encode(b'a') b'yq==' >>> base64.b64encode(b'a').decode() 'yq=='

you need convert str object, using bytes.decode:

return base64.b64encode(stream.getvalue()).decode()

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