Disable SecretService backend if org.freedesktop.secrets name is not …

…available

Fixes jaraco#162, jaraco#434.

keyring/backends/SecretService.py

@@ -35,11 +35,15 @@ def priority(cls):
             secretstorage.__name__
         if exc:
             raise RuntimeError("SecretStorage required")
-        if secretstorage.__version_tuple__[0] < 3:
-            raise RuntimeError("SecretStorage 3.0 or newer required")
+        if secretstorage.__version_tuple__ < (3, 2):
+            raise RuntimeError("SecretStorage 3.2 or newer required")
         try:
             with closing(secretstorage.dbus_init()) as connection:
-                list(secretstorage.get_all_collections(connection))
+                if not secretstorage.check_service_availability(connection):
+                    raise RuntimeError(
+                        "The Secret Service daemon is neither running nor "
+                        "activatable through D-Bus"
+                    )
         except exceptions.SecretStorageException as e:
             raise RuntimeError("Unable to initialize SecretService: %s" % e)
         return 5

setup.cfg

@@ -22,7 +22,7 @@ include_package_data = true
 python_requires = >=3.6
 install_requires =
 	pywin32-ctypes!=0.1.0,!=0.1.1; sys_platform=="win32"
-	SecretStorage>=3; sys_platform=="linux"
+	SecretStorage>=3.2; sys_platform=="linux"
 	jeepney>=0.4.2; sys_platform=="linux"
 	importlib_metadata >= 1; python_version < "3.8"
 setup_requires = setuptools_scm[toml] >= 3.4.1