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Editorial Team
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Asked: 2026-05-27T23:27:29+00:00

I simply wanted to serialize all the fields of a submitted form, like this

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I simply wanted to serialize all the fields of a submitted form, like this in PHP:

json_encode($_GET)

json.dumps(self.request.get) doesn’t work:

<type 'exceptions.TypeError'>: <bound method Request.get of <Request at 77ea190 GET http://localhost:8083/?a=value>> is not JSON serializable 
      args = ('<bound method Request.get of <Request at 77ea190...ocalhost:8083/?a=value>> is not JSON serializable',) 
      message = '<bound method Request.get of <Request at 77ea190...ocalhost:8083/?a=value>> is not JSON serializable'

I’ve tried using the CGI module and that too gives a not serializable error. I case you wondering: I use this to send data back to my template to repopulate the form fields.

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1 Answer

  1. Editorial Team

    self.request.get returns the get method, not what the methods return. You have to do this:

    json.dumps(self.request.GET.items())

    request.GET will return a UnicodeMultiDict object, and request.GET.items() will return a list of tuples, each tuples being (key, value).

    Cf. http://code.google.com/appengine/docs/python/tools/webapp/requestclass.html and http://docs.webob.org/en/latest/reference.html#id1

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