From 1d865359629c1e352f8d29f71851cb1508c31773 Mon Sep 17 00:00:00 2001
From: Harshith Thota <harshith.thota7@gmail.com>
Date: Sat, 29 Jul 2023 20:47:53 +0530
Subject: [PATCH 1/2] Added overridable methods for handling duplicate sections
 and options in ConfigParser.

---
 Lib/configparser.py | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/Lib/configparser.py b/Lib/configparser.py
index 71362d23ec37576..20104f047bc77f1 100644
--- a/Lib/configparser.py
+++ b/Lib/configparser.py
@@ -997,8 +997,7 @@ def _read(self, fp, fpname):
                     sectname = mo.group('header')
                     if sectname in self._sections:
                         if self._strict and sectname in elements_added:
-                            raise DuplicateSectionError(sectname, fpname,
-                                                        lineno)
+                            self._handle_duplicate_section(sectname, fpname, lineno)
                         cursect = self._sections[sectname]
                         elements_added.add(sectname)
                     elif sectname == self.default_section:
@@ -1023,8 +1022,7 @@ def _read(self, fp, fpname):
                         optname = self.optionxform(optname.rstrip())
                         if (self._strict and
                             (sectname, optname) in elements_added):
-                            raise DuplicateOptionError(sectname, optname,
-                                                       fpname, lineno)
+                            self._handle_duplicate_option(sectname, optname, fpname, lineno)
                         elements_added.add((sectname, optname))
                         # This check is fine because the OPTCRE cannot
                         # match if it would set optval to None
@@ -1045,6 +1043,14 @@ def _read(self, fp, fpname):
         if e:
             raise e
 
+    def _handle_duplicate_option(self, sectname, optname, fpname, lineno):
+        """Handle duplicate option definition. Override for custom behavior."""
+        raise DuplicateOptionError(sectname, optname, fpname, lineno)
+
+    def _handle_duplicate_section(self, sectname, fpname, lineno):
+        """Handle duplicate section definition. Override for custom behavior."""
+        raise DuplicateSectionError(sectname, fpname, lineno)
+
     def _join_multiline_values(self):
         defaults = self.default_section, self._defaults
         all_sections = itertools.chain((defaults,),

From 4b06849ba47dc91c3f687f8c9556cf8678b43b18 Mon Sep 17 00:00:00 2001
From: "blurb-it[bot]" <43283697+blurb-it[bot]@users.noreply.github.com>
Date: Sat, 29 Jul 2023 15:26:25 +0000
Subject: [PATCH 2/2] =?UTF-8?q?=F0=9F=93=9C=F0=9F=A4=96=20Added=20by=20blu?=
 =?UTF-8?q?rb=5Fit.?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../next/Library/2023-07-29-15-26-24.gh-issue-107428.TPmUOE.rst  | 1 +
 1 file changed, 1 insertion(+)
 create mode 100644 Misc/NEWS.d/next/Library/2023-07-29-15-26-24.gh-issue-107428.TPmUOE.rst

diff --git a/Misc/NEWS.d/next/Library/2023-07-29-15-26-24.gh-issue-107428.TPmUOE.rst b/Misc/NEWS.d/next/Library/2023-07-29-15-26-24.gh-issue-107428.TPmUOE.rst
new file mode 100644
index 000000000000000..cd9740f96168c29
--- /dev/null
+++ b/Misc/NEWS.d/next/Library/2023-07-29-15-26-24.gh-issue-107428.TPmUOE.rst
@@ -0,0 +1 @@
+Added overridable methods for handling duplicate sections and options in ConfigParser.