hooks: add hook for pystray (#288)

news/288.new.rst

@@ -0,0 +1 @@
+Add a hook for ``pystray`` to collect hidden imports.

requirements-test-libraries.txt

@@ -29,6 +29,7 @@ pyexcelerate==0.8.0
 pylint==2.4.4
 pyusb==1.0.2
 pynput==1.7.3
+pystray==0.17.3
 pyzmq==22.0.3
 sentry-sdk==0.19.3
 # shotgun_api3 can only be installed from git

src/_pyinstaller_hooks_contrib/hooks/stdhooks/hook-pystray.py

@@ -0,0 +1,16 @@
+# ------------------------------------------------------------------
+# Copyright (c) 2020 PyInstaller Development Team.
+#
+# This file is distributed under the terms of the GNU General Public
+# License (version 2.0 or later).
+#
+# The full license is available in LICENSE.GPL.txt, distributed with
+# this software.
+#
+# SPDX-License-Identifier: GPL-2.0-or-later
+# ------------------------------------------------------------------
+
+from PyInstaller.utils.hooks import collect_submodules
+# https://github.com/moses-palmer/pystray/tree/feature-explicit-backends
+# if this get merged then we don't need this hook
+hiddenimports = collect_submodules("pystray")

src/_pyinstaller_hooks_contrib/tests/test_libraries.py

@@ -664,3 +664,10 @@ def test_pynput(pyi_builder):
     pyi_builder.test_source("""
         import pynput
         """)
+
+
+@importorskip('pystray')
+def test_pystray(pyi_builder):
+    pyi_builder.test_source("""
+        import pystray
+        """)