diff --git a/plugins/python/regress/check_python_examples.c b/plugins/python/regress/check_python_examples.c
index 484cfcb4e..de5a41390 100644
--- a/plugins/python/regress/check_python_examples.c
+++ b/plugins/python/regress/check_python_examples.c
@@ -175,7 +175,8 @@ check_example_io_plugin_version_display(int is_verbose)
     if (is_verbose) {
         // Note: the exact python version is environment dependant
         VERIFY_STR_CONTAINS(data.stdout_str, "Python interpreter version:");
-        VERIFY_STR_CONTAINS(data.stdout_str, "Python io plugin API version");
+        *strstr(data.stdout_str, "Python interpreter version:") = '\0';
+        VERIFY_STDOUT(expected_path("check_example_io_plugin_version_display_full.stdout"));
     } else {
         VERIFY_STDOUT(expected_path("check_example_io_plugin_version_display.stdout"));
     }
@@ -687,7 +688,8 @@ check_example_policy_plugin_version_display(int is_verbose)
     if (is_verbose) {
         // Note: the exact python version is environment dependant
         VERIFY_STR_CONTAINS(data.stdout_str, "Python interpreter version:");
-        VERIFY_STR_CONTAINS(data.stdout_str, "Python policy plugin API version");
+        *strstr(data.stdout_str, "Python interpreter version:") = '\0';
+        VERIFY_STDOUT(expected_path("check_example_policy_plugin_version_display_full.stdout"));
     } else {
         VERIFY_STDOUT(expected_path("check_example_policy_plugin_version_display.stdout"));
     }
@@ -928,7 +930,10 @@ check_policy_plugin_callbacks_are_optional(void)
     VERIFY_PTR(python_policy->invalidate, NULL);
     VERIFY_PTR_NE(python_policy->check_policy, NULL); // (not optional)
     VERIFY_PTR(python_policy->init_session, NULL);
-    VERIFY_PTR(python_policy->show_version, NULL);
+
+    // show_version always displays the plugin, but it is optional in the python layer
+    VERIFY_PTR_NE(python_policy->show_version, NULL);
+    VERIFY_INT(python_policy->show_version(1), SUDO_RC_OK);
 
     python_policy->close(0, 0);
     return true;
@@ -1014,9 +1019,12 @@ check_io_plugin_callbacks_are_optional(void)
     VERIFY_PTR(python_io->log_stderr, NULL);
     VERIFY_PTR(python_io->log_ttyin, NULL);
     VERIFY_PTR(python_io->log_ttyout, NULL);
-    VERIFY_PTR(python_io->show_version, NULL);
     VERIFY_PTR(python_io->change_winsize, NULL);
 
+    // show_version always displays the plugin, but it is optional in the python layer
+    VERIFY_PTR_NE(python_io->show_version, NULL);
+    VERIFY_INT(python_io->show_version(1), SUDO_RC_OK);
+
     python_io->close(0, 0);
     return true;
 }
@@ -1261,7 +1269,10 @@ check_audit_plugin_callbacks_are_optional(void)
     VERIFY_PTR(python_audit->accept, NULL);
     VERIFY_PTR(python_audit->reject, NULL);
     VERIFY_PTR(python_audit->error, NULL);
-    VERIFY_PTR(python_audit->show_version, NULL);
+
+    // show_version always displays the plugin, but it is optional in the python layer
+    VERIFY_PTR_NE(python_audit->show_version, NULL);
+    VERIFY_INT(python_audit->show_version(1), SUDO_RC_OK);
 
     python_audit->close(SUDO_PLUGIN_NO_STATUS, 0);
     return true;
diff --git a/plugins/python/regress/testdata/check_example_audit_plugin_version_display.stdout b/plugins/python/regress/testdata/check_example_audit_plugin_version_display.stdout
index 3f7015ba1..1586f462d 100644
--- a/plugins/python/regress/testdata/check_example_audit_plugin_version_display.stdout
+++ b/plugins/python/regress/testdata/check_example_audit_plugin_version_display.stdout
@@ -1,6 +1,6 @@
 (AUDIT)  -- Started by user root (0) -- 
 Python Example Audit Plugin
-Python audit plugin API version 1.0
+Python audit plugin (API 1.0): SudoAuditPlugin (loaded from 'SRC_DIR/example_audit_plugin.py')
 Python Example Audit Plugin (version=1.0)
 (AUDIT)  Sudo has run into an error: 222
 (AUDIT)  -- Finished --
diff --git a/plugins/python/regress/testdata/check_example_debugging_py_calls@info.log b/plugins/python/regress/testdata/check_example_debugging_py_calls@info.log
index e235d9853..a67f146ff 100644
--- a/plugins/python/regress/testdata/check_example_debugging_py_calls@info.log
+++ b/plugins/python/regress/testdata/check_example_debugging_py_calls@info.log
@@ -1,6 +1,5 @@
 DebugDemoPlugin.__init__ was called with arguments: () {'version': '1.0', 'settings': ('debug_flags=/tmp/sudo_check_python_exampleXXXXXX/debug.log py_calls@info', 'plugin_path=python_plugin.so'), 'user_env': (), 'user_info': (), 'plugin_options': ('ModulePath=SRC_DIR/example_debugging.py', 'ClassName=DebugDemoPlugin')}
 DebugDemoPlugin.__init__ returned result: <example_debugging.DebugDemoPlugin object>
-DebugDemoPlugin function 'show_version' is not implemented
 DebugDemoPlugin function 'log_ttyin' is not implemented
 DebugDemoPlugin function 'log_ttyout' is not implemented
 DebugDemoPlugin function 'log_stdin' is not implemented
diff --git a/plugins/python/regress/testdata/check_example_io_plugin_version_display_full.stdout b/plugins/python/regress/testdata/check_example_io_plugin_version_display_full.stdout
new file mode 100644
index 000000000..cfb3921c8
--- /dev/null
+++ b/plugins/python/regress/testdata/check_example_io_plugin_version_display_full.stdout
@@ -0,0 +1,3 @@
+Example sudo python plugin will log to /tmp/sudo_check_python_exampleXXXXXX/sudo.log
+Python io plugin (API 1.0): SudoIOPlugin (loaded from 'SRC_DIR/example_io_plugin.py')
+Python Example IO Plugin version: 1.0
diff --git a/plugins/python/regress/testdata/check_example_policy_plugin_version_display_full.stdout b/plugins/python/regress/testdata/check_example_policy_plugin_version_display_full.stdout
new file mode 100644
index 000000000..a23cf1269
--- /dev/null
+++ b/plugins/python/regress/testdata/check_example_policy_plugin_version_display_full.stdout
@@ -0,0 +1,2 @@
+Python policy plugin (API 1.0): SudoPolicyPlugin (loaded from 'SRC_DIR/example_policy_plugin.py')
+Python Example Policy Plugin version: 1.0
diff --git a/plugins/python/regress/testdata/check_multiple_approval_plugin_and_arguments.stdout b/plugins/python/regress/testdata/check_multiple_approval_plugin_and_arguments.stdout
index 4eca0f47a..1ba0dcafe 100644
--- a/plugins/python/regress/testdata/check_multiple_approval_plugin_and_arguments.stdout
+++ b/plugins/python/regress/testdata/check_multiple_approval_plugin_and_arguments.stdout
@@ -59,7 +59,7 @@
     "_id": "(APPROVAL 2)"
 }
 (APPROVAL 1) Show version was called with arguments: (0,)
-Python approval plugin API version 1.0
+Python approval plugin (API 1.0): ApprovalTestPlugin (loaded from 'SRC_DIR/regress/plugin_approval_test.py')
 (APPROVAL 2) Show version was called with arguments: (1,)
 (APPROVAL 1) Check was called with arguments: (('CMDINFO1=value1', 'CMDINFO2=VALUE2'), ('whoami', '--help'), ('USER_ENV1=VALUE1', 'USER_ENV2=value2'))
 (APPROVAL 2) Check was called with arguments: (('CMDINFO1=value1', 'CMDINFO2=VALUE2'), ('whoami', '--help'), ('USER_ENV1=VALUE1', 'USER_ENV2=value2'))