From f32cebf83d14f8557f4b4b5c3ac6ac0ad5acb21b Mon Sep 17 00:00:00 2001
From: vapniks <vapniks@yahoo.com>
Date: Thu, 30 May 2019 17:25:29 +0100
Subject: [PATCH] Don't try to truncate sys.stdout

---
 icsv2ledger.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/icsv2ledger.py b/icsv2ledger.py
index de4c6fb..c752748 100755
--- a/icsv2ledger.py
+++ b/icsv2ledger.py
@@ -945,7 +945,7 @@ def process_input_output(in_file, out_file):
         Process them.
         Write Ledger lines either to filename or stdout.
         """
-        if not options.incremental:
+        if not options.incremental and not out_file == sys.stdout:
             out_file.truncate(0)
 
         csv_lines = get_csv_lines(in_file)