#1726198: replace while 1: fp.readline() with file iteration.
diff --git a/Lib/formatter.py b/Lib/formatter.py
index fa2b389..834b560 100644
--- a/Lib/formatter.py
+++ b/Lib/formatter.py
@@ -432,10 +432,7 @@
         fp = open(sys.argv[1])
     else:
         fp = sys.stdin
-    while 1:
-        line = fp.readline()
-        if not line:
-            break
+    for line in fp:
         if line == '\n':
             f.end_paragraph(1)
         else: