module_utils - Fix changing value while iterating. (#78501)

changelogs/fragments/fix-change-while-iterating-module-utils-service.yml

@@ -0,0 +1,2 @@
+bugfixes:
+  - module_utils.service - daemonize - Avoid modifying the list of file descriptors while iterating over it.

lib/ansible/module_utils/service.py

@@ -212,7 +212,7 @@ def daemonize(module, cmd):
         while fds:
             rfd, wfd, efd = select.select(fds, [], fds, 1)
             if (rfd + wfd + efd) or p.poll():
-                for out in fds:
+                for out in list(fds):
                     if out in rfd:
                         data = os.read(out.fileno(), chunk)
                         if not data: