How to create a PyQt4.QtCore.QIODevice object at... ?

Question

Python

Tell me how you can create a writable object <PyQt4.QtCore.QIODevice object at...>
exactly QIODevice object, without using QFile, QByteArray, QBuffer ...
Or how you can convert <PyQt4.QtCore.QBuffer object at...>to <PyQt4.QtCore.QIODevice object at...>
As a result, it should turn <PyQt4.QtCore.QIODevice object at...>
out QNetworkAccessManager has a method

createRequest(QNetworkAccessManager::Operation op, const QNetworkRequest &req, QIODevice *outgoingData)

. I need to override it in the Python class (inheriting QNetworkAccessManager) and change the data in outgoingData. outgoingData comes in createRequest as ( <PyQt4.QtCore.QIODevice object at 0x0...>) ReadOnly. You need to create your own QIODevice object, write everything you need to it, but it doesn’t work

Answer 1

QIODevice is the base class for QBuffer and this class is abstract (see qt-project.org/doc/qt-4.8/qiodevice.html). Respectively

create a writable object

will not work.