a simple multipart-form-data wsgi server echoing path, file and data sent to it (for testing web-client)

simple.py

import multipart
from wsgiref.simple_server import make_server
from json import dumps
from urllib.parse import parse_qsl


import logging

def simple_app(environ, start_response):
    fo,fi=multipart.parse_form_data(environ)
    def retfi(fi):
        return {
            'name' : fi.filename,
            'content' : fi.file.read().decode('utf-8', 'backslashreplace'),
            'content_type' : fi.content_type,
        }
    fo.update(**{ k: retfi(v) for k,v in fi.items()})
    fo=dict(fo.items())
    #from pdb import set_trace;set_trace()
    fo["_path"]=environ["PATH_INFO"]
    fo.update(**dict(parse_qsl(environ["QUERY_STRING"])))
    fo.update(**dict(mfct=environ.get("CONTENT_TYPE","none")))
    res=dumps(fo, indent=4)
    start_response('200 OK', [('Content-type', 'text/plain; charset=utf-8')])
    return [dumps(fo, indent=4).encode('utf-8', 'backslashreplace')]

httpd = make_server('', 5000, simple_app)
print("Serving on port 5000...")
httpd.serve_forever()