How I do convert a Julia stream to "byte content" for a Python package?

Question

I maintain OdsIo.jl , a Julia package that wraps, for ods files specifically, ezodf , a Python package for various OpenDocument formats,

My "ods_readall" function starts by calling ezodf.opendoc .

ezodf.opendoc supports as input, other than the filename, the file byte content itself:

ezodf.opendoc(filename)¶
    Parameters: filename (str) – a filename or the file-content as bytes

Is there a way I can use it with a Julia stream (eg a network gzipped file as in this question ) intead of plain files?

Answer 1

This seems to work, at least for HTTP, that is what I was interested to:

using HTTP, Pipe, PyCall

const  pyio  = PyNULL()
const  ezodf = PyNULL()

copy!(pyio, pyimport("io"))
copy!(ezodf, pyimport("ezodf"))

function readstream(istream)
    return ezodf.opendoc(pyio.BytesIO(istream))
end

urlData = "https://github.com/sylvaticus/OdsIO.jl/raw/master/test/spreadsheet.ods"

doc = @pipe HTTP.get(urlData).body |> readstream(_)