scripts/augeas/gen-nutupsconf-aug.py.in, scripts/python/module/setup.py.in: fix codecs.open() deprecation warning (3.14+) [networkupstools#3256]

Signed-off-by: Jim Klimov <jimklimov+nut@gmail.com>
Co-Authored-by: Paul Donald <newtwen+github@gmail.com>

Author: jimklimov

scripts/augeas/gen-nutupsconf-aug.py.in

@@ -1,7 +1,7 @@
 #!@PYTHON_DEFAULT@
 #   Copyright (C)
 #     2010 -        Arnaud Quette <arnaud.quette@gmail.com>
-#     2020 - 2024   Jim Klimov <jimklimov+nut@gmail.com>
+#     2020 - 2026   Jim Klimov <jimklimov+nut@gmail.com>
 #
 #   This program is free software; you can redistribute it and/or modify
 #   it under the terms of the GNU General Public License as published by
@@ -25,7 +25,23 @@ from __future__ import print_function
 import sys
 import re
 import glob
-import codecs
+
+try:
+	# NOTE: Deprecated as of python3.14
+	import codecs
+	HAVE_CODECS = True
+	fd = None
+	try:
+		# Open self to test that it works
+		fd = codecs.open(os.path.abspath(inspect.getfile(inspect.currentframe())), mode="r", encoding='utf-8')
+		USE_CODECS = True
+	except DeprecationWarning:
+		USE_CODECS = False
+	if fd is not None:
+		close(fd)
+except:
+	HAVE_CODECS = False
+	USE_CODECS = False
 
 # Return a sorted list of unique entries, based on the input 'list'
 def sortUnique(list):
@@ -80,7 +96,10 @@ if __name__ == '__main__':
 	for filename in glob.glob('../../drivers/*.c'):
 		# 1.2/ Exclude main.c, which defines addvar() and skel.c (example driver)
 		if filename not in Exceptionlist:
-			fd = codecs.open(filename, encoding='utf-8')
+			if USE_CODECS:
+				fd = codecs.open(filename, encoding='utf-8')
+			else:
+				fd = open(filename, encoding='utf-8')
 			# 1.3/ Grep for the "addvar(..." pattern
 			matchResults = grep (r'.*addvar[\ ]*\(.*(VAR_FLAG|VAR_VALUE)*,.*', fd)
 
@@ -95,7 +114,10 @@ if __name__ == '__main__':
 					# Let's grep in .ch related files
 					if (row[1].find('"') == -1):
 						for defFilename in glob.glob(filename.replace('.c', '.[ch]')):
-							defFd = codecs.open(defFilename, encoding='utf-8')
+							if USE_CODECS:
+								defFd = codecs.open(defFilename, encoding='utf-8')
+							else:
+								defFd = open(defFilename, encoding='utf-8')
 							matchString = '^#define.*' + row[1].replace('"', '').lstrip() + '.*'
 							matchResult = grep (matchString, defFd)
 							for varDefine in matchResult:
@@ -115,12 +137,18 @@ if __name__ == '__main__':
 		specificVars += "                 | \"%s\"\n" %(name)
 
 	# 2/ Load the template lens
-	tplFd = codecs.open(dirPrefix + templateFilename, encoding='utf-8')
+	if USE_CODECS:
+		tplFd = codecs.open(dirPrefix + templateFilename, encoding='utf-8')
+	else:
+		tplFd = open(dirPrefix + templateFilename, encoding='utf-8')
 
 	# 2.1/ Search for the pattern to replace
 	outputText = tplFd.read()
 	outputText = outputText.replace('@SPECIFIC_DRV_VARS@', specificVars)
 
 	# 3/ Output final lens
-	outFd = codecs.open(outputFilename, mode='w', encoding='utf-8')
+	if USE_CODECS:
+		outFd = codecs.open(outputFilename, mode='w', encoding='utf-8')
+	else:
+		outFd = open(outputFilename, mode='w', encoding='utf-8')
 	outFd.write(outputText)

scripts/python/module/setup.py.in

@@ -5,14 +5,35 @@ The setup.py file for PyNUTClient
 # See also .github/workflows/PyNUTClient.yml for active packaging steps
 
 from setuptools import setup, find_packages
-import codecs
 import os
 
 here = os.path.abspath(os.path.dirname(__file__))
 
+try:
+    # NOTE: Deprecated as of python3.14
+    import codecs
+    HAVE_CODECS = True
+    fd = None
+    try:
+        # Open self to test that it works
+        fd = codecs.open(os.path.abspath(inspect.getfile(inspect.currentframe())), mode="r", encoding='utf-8')
+        USE_CODECS = True
+    except DeprecationWarning:
+        USE_CODECS = False
+    if fd is not None:
+        close(fd)
+except:
+    HAVE_CODECS = False
+    USE_CODECS = False
+
+
 # README.txt appears from README.adoc during package or CI build
-with codecs.open(os.path.join(here, "README.txt"), encoding="utf-8") as fh:
-    long_description = "\n" + fh.read()
+if USE_CODECS:
+    with codecs.open(os.path.join(here, "README.txt"), encoding="utf-8") as fh:
+        long_description = "\n" + fh.read()
+else:
+    with open(os.path.join(here, "README.txt"), encoding="utf-8") as fh:
+        long_description = "\n" + fh.read()
 
 setup(
     name =	"pynutclient",	### "PyNUTClient" lower-cased due to PEP-0625