[pygobject] Created tag 3.40.0

[Christoph Reiter <creiter src gnome org>]

The signed tag '3.40.0' was created.

Tagger: Christoph Reiter <reiter christoph gmail com>
Date: 1616161690 +0100

    release 3.40.0

Changes since the last tag '3.36.0':

Christoph Reiter (38):
      version bump
      Add .mypy_cache to .gitignore
      Remove Python 2 support
      tests: don't use strict mode for xfail with the excepthook plugin
      Gtk overrides: make sure TreeModelSort.new_with_model and TreeModel.sort_new_with_model exist
      Remove all Python 2 Python code
      Remove all Python 2 C code
      Remove PYGLIB_REGISTER_TYPE
      Remove PYGOBJECT_REGISTER_GTYPE
      Rename PYGLIB_DEFINE_TYPE to PYGI_DEFINE_TYPE
      NEWS: Add a note on how to handle keeping an old release for py2 around
      Add a test scroll event attr mapping
      get/set_focus_on_click: Fix return value, add a test and document why the override is there
      CI: switch to the new win32 powershell runners
      Update NEWS
      flake8: fix errors with new flake8 3.8.0
      Update NEWS and bump version
      Drop Python 3.5 support and bump other dependencies
      Revert the dependency bump for libffi
      CI: test with Python 3.9
      Don't call PyEval_InitThreads() with Python 3.9+
      Replace PyUnicode_GET_SIZE() usage with PyUnicode_GET_LENGTH()
      tests: Remove metapath hack to import when uninstalled
      tests: remove an old libtool search path
      tests: Remove usage of some deprecated unittest methods
      CI: bring back lcov support
      CI: clean up the msys2 job scripts
      tests: fix tests with glib master
      tests: Work around a crash in the new gtk4 a11y stack
      Clean up version checks some more
      flake8 fixes
      gtk4: Remove overrides for Paned
      gtk4: Skip template test for now
      tests: various fixes for gtk4
      Clean up Widget overrides
      overrides: Remove various overrides for gtk4
      examples/demo: Use require_version to force gtk3
      release

Dan Yeaw (1):
      Add overrides for Gtk.Button set/get_focus_on_click

Emmanuele Bassi (4):
      Simplify the version check for GTK2, GTK3, and GTK4
      Remove Container from GTK4 overrides
      Add GTK4 override for GtkDialog
      Drop the GtkButton override for GTK4

Jean Felder (17):
      gtk overrides: Drop ToolButton for Gtk4
      gtk overrides: Drop Gtk.main for Gtk4
      tests: Add a Gtk4 test for drag and drop operations
      gimodule: Remove trailing whitespaces
      gtk overrides: Fix template hierarchy issue
      gtktemplate: Do not crash on multiple init_template calls
      tests: GDK_RELEASE_MASK has been removed from GTK4
      tests: GtkWindowType has been removed from GTK4
      gtk overrides: Make GTK4 widgets iterable
      gtk: Add override for Gtk.CustomSorter.set_sort_func
      Gtk.Template: Fix template support for GTK4
      gtk overrides: Add support for builder scope
      tests: Do not swap signal when object is set
      tests: Update builer tests to work with gtk4
      tests: Do not use the margin property for template tests
      tests: Do not use container api when gtk4 is used
      tests: Re-enable template tests for gtk4

Marinus Schraal (1):
      gtk overrides: Remove Container use for GTK4

Mat (1):
      Add Nicotine+ to "Who Is Using PyGObject?"

Matt Rose (1):
      add Terminator to list of pygobject projects

Povilas Kanapickas (1):
      gdk overrides: Fix wrapping of scroll events

Thibault Saunier (2):
      meson: Make the `pycairo` option a feature
      meson: Follow up to make `pycairo` option a feature

Tomas Hrnciar (1):
      Don't assume Py_TYPE being a macro