[pygobject] Created tag 3.38.0

[Christoph Reiter <creiter src gnome org>]

The signed tag '3.38.0' was created.

Tagger: Christoph Reiter <reiter christoph gmail com>
Date: 1599933344 +0200

    release 3.38.0

Changes since the last tag '3.36.0':

Christoph Reiter (17):
      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
      release

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

Jean Felder (8):
      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

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