From 852c3d2fb947574655087a2514f80c66b4ae5954 Mon Sep 17 00:00:00 2001
From: Alexander Smorkalov <alexander.smorkalov@opencv.ai>
Date: Sun, 24 May 2026 16:54:39 +0300
Subject: [PATCH] Replace codecs.open() with open() since codecs.open()
 deprecated in Python 3.14

---
 apps/pattern-tools/svgfig.py       |  6 +++---
 modules/java/generator/gen_java.py |  3 +--
 modules/objc/generator/gen_objc.py |  5 ++---
 platforms/ios/build_framework.py   | 10 +++++-----
 4 files changed, 11 insertions(+), 13 deletions(-)

diff --git a/apps/pattern-tools/svgfig.py b/apps/pattern-tools/svgfig.py
index 73a91ce134..323ed420c0 100644
--- a/apps/pattern-tools/svgfig.py
+++ b/apps/pattern-tools/svgfig.py
@@ -489,9 +489,9 @@ class SVG:
             f.close()
 
         else:
-            f = codecs.open(fileName, "w", encoding=encoding)
-            f.write(self.standalone_xml(encoding=encoding))
-            f.close()
+            with open(fileName, "w", encoding=encoding) as f:
+                f.write(self.standalone_xml(encoding=encoding))
+
 
     def inkview(self, fileName=None, encoding="utf-8"):
         """View in "inkview", assuming that program is available on your system.
diff --git a/modules/java/generator/gen_java.py b/modules/java/generator/gen_java.py
index 591eb38ea3..691e2eee00 100755
--- a/modules/java/generator/gen_java.py
+++ b/modules/java/generator/gen_java.py
@@ -3,7 +3,6 @@
 import sys, re, os.path, errno, fnmatch
 import json
 import logging
-import codecs
 from shutil import copyfile
 from pprint import pformat
 from string import Template
@@ -589,7 +588,7 @@ class JavaWrapperGenerator(object):
                 content = f.read()
                 if content == buf:
                     return
-        with codecs.open(path, "w", "utf-8") as f:
+        with open(path, "w", encoding="utf-8") as f:
             f.write(buf)
         updated_files += 1
 
diff --git a/modules/objc/generator/gen_objc.py b/modules/objc/generator/gen_objc.py
index 10071267e6..5dfabbe65d 100755
--- a/modules/objc/generator/gen_objc.py
+++ b/modules/objc/generator/gen_objc.py
@@ -4,7 +4,6 @@ from __future__ import print_function, unicode_literals
 import sys, re, os.path, errno, fnmatch
 import json
 import logging
-import codecs
 import io
 from shutil import copyfile
 from pprint import pformat
@@ -902,7 +901,7 @@ class ObjectiveCWrapperGenerator(object):
                 content = f.read()
                 if content == buf:
                     return
-        with codecs.open(path, "w", "utf-8") as f:
+        with open(path, "w", encoding="utf-8") as f:
             f.write(buf)
         updated_files += 1
 
@@ -1530,7 +1529,7 @@ typedef NS_ENUM(int, {1}) {{
                         body = file.read()
                     body = body.replace("import OpenCV", "import " + framework_name)
                     body = body.replace("#import <OpenCV/OpenCV.h>", "#import <" + framework_name + "/" + framework_name + ".h>")
-                    with codecs.open(filepath, "w", "utf-8") as file:
+                    with open(filepath, "w", encoding="utf-8") as file:
                         file.write(body)
 
 
diff --git a/platforms/ios/build_framework.py b/platforms/ios/build_framework.py
index 5bf6764361..bca699bf0c 100755
--- a/platforms/ios/build_framework.py
+++ b/platforms/ios/build_framework.py
@@ -32,7 +32,7 @@ Adding --dynamic parameter will build {framework_name}.framework as App Store dy
 """
 
 from __future__ import print_function, unicode_literals
-import glob, os, os.path, shutil, string, sys, argparse, traceback, multiprocessing, codecs, io
+import glob, os, os.path, shutil, string, sys, argparse, traceback, multiprocessing, io
 from subprocess import check_call, check_output, CalledProcessError
 
 if sys.version_info >= (3, 8): # Python 3.8+
@@ -190,7 +190,7 @@ class Builder:
                                 body = body[:insert_pos] + "import " + self.framework_name + "\n" + body[insert_pos:]
                             else:
                                 body = "import " + self.framework_name + "\n\n" + body
-                            with codecs.open(os.path.join(swift_sources_dir, file), "w", "utf-8") as file_out:
+                            with open(os.path.join(swift_sources_dir, file), "w", encoding="utf-8") as file_out:
                                 file_out.write(body)
 
     def build(self, outdir):
@@ -380,7 +380,7 @@ class Builder:
                     framework = self.framework_name,
                     hosting_base_path = self.hosting_base_path
                 )
-                with codecs.open(os.path.join(docs_dir, "HOWTO.md"), "w", "utf-8") as file:
+                with open(os.path.join(docs_dir, "HOWTO.md"), "w", encoding="utf-8") as file:
                     file.write(howto)
                 self.docs_built = True
             execute(["cmake", "-DBUILD_TYPE=%s" % self.getConfiguration(), "-DCMAKE_INSTALL_PREFIX=%s" % (builddir + "/install"), "-P", "cmake_install.cmake"], cwd = framework_build_dir)
@@ -473,11 +473,11 @@ class Builder:
             for dirname, dirs, files in os.walk(os.path.join(dstdir, "Headers")):
                 for filename in files:
                     filepath = os.path.join(dirname, filename)
-                    with codecs.open(filepath, "r", "utf-8") as file:
+                    with open(filepath, "r", encoding="utf-8") as file:
                         body = file.read()
                     body = body.replace("include \"opencv2/", "include \"" + name + "/")
                     body = body.replace("include <opencv2/", "include <" + name + "/")
-                    with codecs.open(filepath, "w", "utf-8") as file:
+                    with open(filepath, "w", encoding="utf-8") as file:
                         file.write(body)
         if self.build_objc_wrapper:
             copy_tree(os.path.join(builddirs[0], "install", "lib", name + ".framework", "Headers"), os.path.join(dstdir, "Headers"))