use subprocess.run(..., text=True) instead of stdout.decode()

rpmlint/checks/MenuCheck.py

@@ -94,7 +94,7 @@ class MenuCheck(AbstractCheck):
             directory = pkg.dir_name()
             for f in menus:
                 # remove comments and handle cpp continuation lines
-                text = subprocess.run(('/lib/cpp', directory + f), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=ENGLISH_ENVIROMENT).stdout.decode()
+                text = subprocess.run(('/lib/cpp', directory + f), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=ENGLISH_ENVIROMENT, text=True).stdout
                 if text.endswith('\n'):
                     text = text[:-1]
 

rpmlint/checks/MenuXDGCheck.py

@@ -44,8 +44,9 @@ class MenuXDGCheck(AbstractFilesCheck):
         root = pkg.dir_name()
         f = root + filename
         try:
-            command = subprocess.run(('desktop-file-validate', f), stdout=subprocess.PIPE, stderr=subprocess.STDOUT, env=ENGLISH_ENVIROMENT)
-            text = command.stdout.decode()
+            command = subprocess.run(('desktop-file-validate', f), stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
+                                     env=ENGLISH_ENVIROMENT, text=True)
+            text = command.stdout
             if command.returncode:
                 error_printed = False
                 for line in text.splitlines():

rpmlint/pkg.py

@@ -489,8 +489,8 @@ class Pkg(AbstractPkg):
     def check_signature(self):
         ret = subprocess.run(('rpm', '-Kv', self.filename),
                              stdout=subprocess.PIPE, stderr=subprocess.STDOUT,
-                             env=ENGLISH_ENVIROMENT)
-        text = ret.stdout.decode()
+                             env=ENGLISH_ENVIROMENT, text=True)
+        text = ret.stdout
         if text.endswith('\n'):
             text = text[:-1]
         return ret.returncode, text