packaging: use with open() instead of try/finally: close
diff --git a/Lib/packaging/util.py b/Lib/packaging/util.py
index 486e2da..348e3cd 100644
--- a/Lib/packaging/util.py
+++ b/Lib/packaging/util.py
@@ -350,7 +350,7 @@
             else:
                 script = open(script_name, "w")
 
-            try:
+            with script:
                 script.write("""\
 from packaging.util import byte_compile
 files = [
@@ -378,9 +378,6 @@
              direct=True)
 """ % (optimize, force, prefix, base_dir, verbose))
 
-            finally:
-                script.close()
-
         cmd = [sys.executable, script_name]
         if optimize == 1:
             cmd.insert(1, "-O")