From: Constantin <constantin@exxxtremesys.lu>
Date: Sun, 15 Sep 2013 22:47:58 +0000 (+0200)
Subject: my senf to ralfs senf to tuerd
X-Git-Url: https://git.ralfj.de/saartuer.git/commitdiff_plain/bc0d1aec669d34e142900e562b07dec0696f0160

my senf to ralfs senf to tuerd
as suggested in http://stackoverflow.com/questions/10840533/most-pythonic-way-to-delete-a-file-which-may-not-exist
---

diff --git a/tuerd b/tuerd
index 00b2420..5884d13 100755
--- a/tuerd
+++ b/tuerd
@@ -1,5 +1,5 @@
 #!/usr/bin/python3
-import time, socket, os, stat, atexit
+import time, socket, os, stat, atexit, errno
 from datetime import datetime
 import RPi.GPIO as GPIO
 GPIO.setmode(GPIO.BOARD)
@@ -25,8 +25,12 @@ def doNothing (conn):
 
 # delete a file, don't care if it did not exist in the first place
 def forcerm(name):
-	if os.path.exists(name):
+	try:
 		os.unlink (name)
+	except OSError as e:
+		# only ignore error if it was "file didn't exist"
+		if e.errno != errno.ENOENT:
+			raise
 
 # commands: on a pin do a series of timed on/off switches
 class Pinoutput: