From 642942a72fe544f9f6466f87c550755d707e3e47 Mon Sep 17 00:00:00 2001
From: Vadim Levin <vadim.levin@xperience.ai>
Date: Fri, 17 Feb 2023 12:26:41 +0300
Subject: [PATCH] fix: remove extra '/O' modifier for '/IO' arguments

---
 modules/python/src2/gen2.py       | 9 +++++++++
 modules/python/src2/hdr_parser.py | 2 ++
 2 files changed, 11 insertions(+)

diff --git a/modules/python/src2/gen2.py b/modules/python/src2/gen2.py
index 92629c0e7a..23f31c3e19 100755
--- a/modules/python/src2/gen2.py
+++ b/modules/python/src2/gen2.py
@@ -448,6 +448,15 @@ class ArgInfo(object):
         self.py_outputarg = False
         self.enclosing_arg = enclosing_arg
 
+    def __str__(self):
+        return 'ArgInfo("{}", tp="{}", default="{}", in={}, out={})'.format(
+            self.name, self.tp, self.defval, self.inputarg,
+            self.outputarg
+        )
+
+    def __repr__(self):
+        return str(self)
+
     @property
     def export_name(self):
         if self.name in python_reserved_keywords:
diff --git a/modules/python/src2/hdr_parser.py b/modules/python/src2/hdr_parser.py
index f5df3e2aab..710c792179 100755
--- a/modules/python/src2/hdr_parser.py
+++ b/modules/python/src2/hdr_parser.py
@@ -616,6 +616,8 @@ class CppHeaderParser(object):
                                                              ("InputOutputArray", mat),
                                                              ("OutputArray", mat),
                                                              ("noArray", arg_type)]).strip()
+                    if '/IO' in modlist and '/O' in modlist:
+                        modlist.remove('/O')
                     args.append([arg_type, arg_name, defval, modlist])
                 npos = arg_start-1