[Bug 783520] New: Removing default debug/log function doesn't work in python

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=783520

            Bug ID: 783520
           Summary: Removing default debug/log function doesn't work in
                    python
    Classification: Platform
           Product: GStreamer
           Version: 1.4.4
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Normal
         Component: don't know
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: jspurny at seznam.cz
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

In python Gst documentation
(https://lazka.github.io/pgi-docs/Gst-1.0/functions.html#Gst.debug_log_default)
is a line which says:

 "You can add other handlers by using Gst.debug_add_log_function(). And you can
remove this handler by calling
Gst.debug_remove_log_function(Gst.debug_log_default);"

This however does nothing (returns 0).

What works, is using:

    Gst.debug_remove_log_function_by_data(0)

despite the documentation
(https://lazka.github.io/pgi-docs/Gst-1.0/functions.html#Gst.debug_remove_log_function_by_data),
which says:

 "Parameters:    func (Gst.LogFunction or None) – the log function to remove,
or None to remove the default log function"

But "None" throws: "TypeError: Argument 0 does not allow None as a value"

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