From e4ec8de6fa6f0a07e64f6a3e3f894926b4b0652d Mon Sep 17 00:00:00 2001
From: Serhiy Storchaka <storchaka@gmail.com>
Date: Wed, 19 Oct 2022 12:30:14 +0300
Subject: [PATCH] gh-97928: Fix handling options starting with "-" in
 tkinter.Text.count() (GH-98436)

Previously they were silently ignored. Now they are errors.
---
 Lib/test/test_tkinter/test_text.py                            | 4 +---
 Lib/tkinter/__init__.py                                       | 2 +-
 .../Library/2022-10-19-09-29-12.gh-issue-97928.xj3im7.rst     | 2 ++
 3 files changed, 4 insertions(+), 4 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Library/2022-10-19-09-29-12.gh-issue-97928.xj3im7.rst

diff --git a/Lib/test/test_tkinter/test_text.py b/Lib/test/test_tkinter/test_text.py
index b8dfde62070..328e4256ce0 100644
--- a/Lib/test/test_tkinter/test_text.py
+++ b/Lib/test/test_tkinter/test_text.py
@@ -76,9 +76,7 @@ def test_count(self):
         self.assertEqual(text.count('1.0', 'end'), (124,)  # 'indices' by default
                          if self.wantobjects else ('124',))
         self.assertRaises(tkinter.TclError, text.count, '1.0', 'end', 'spam')
-        # '-lines' is ignored, 'indices' is used by default
-        self.assertEqual(text.count('1.0', 'end', '-lines'), (124,)
-                         if self.wantobjects else ('124',))
+        self.assertRaises(tkinter.TclError, text.count, '1.0', 'end', '-lines')
 
         self.assertIsInstance(text.count('1.3', '1.5', 'ypixels'), tuple)
         self.assertIsInstance(text.count('1.3', '1.5', 'update', 'ypixels'), int
diff --git a/Lib/tkinter/__init__.py b/Lib/tkinter/__init__.py
index 356446911e0..a8e7bf490ad 100644
--- a/Lib/tkinter/__init__.py
+++ b/Lib/tkinter/__init__.py
@@ -3648,7 +3648,7 @@ def count(self, index1, index2, *args): # new in Tk 8.5
         "lines", "xpixels" and "ypixels". There is an additional possible
         option "update", which if given then all subsequent options ensure
         that any possible out of date information is recalculated."""
-        args = ['-%s' % arg for arg in args if not arg.startswith('-')]
+        args = ['-%s' % arg for arg in args]
         args += [index1, index2]
         res = self.tk.call(self._w, 'count', *args) or None
         if res is not None and len(args) <= 3:
diff --git a/Misc/NEWS.d/next/Library/2022-10-19-09-29-12.gh-issue-97928.xj3im7.rst b/Misc/NEWS.d/next/Library/2022-10-19-09-29-12.gh-issue-97928.xj3im7.rst
new file mode 100644
index 00000000000..cf33db7548f
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2022-10-19-09-29-12.gh-issue-97928.xj3im7.rst
@@ -0,0 +1,2 @@
+:meth:`tkinter.Text.count` raises now an exception for options starting with
+"-" instead of silently ignoring them.