From b4e5b96a74b5964fb20ef901307aad7def87fdeb Mon Sep 17 00:00:00 2001
From: Michael Tremer <michael.tremer@ipfire.org>
Date: Sun, 20 Sep 2020 14:47:40 +0000
Subject: [PATCH] Open all files in a with statement block

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---
 src/collecty/plugins/interface.py | 12 +-----------
 src/collecty/plugins/memory.py    | 10 ++--------
 src/collecty/plugins/processor.py | 11 ++---------
 3 files changed, 5 insertions(+), 28 deletions(-)

diff --git a/src/collecty/plugins/interface.py b/src/collecty/plugins/interface.py
index b1dfe34..e63f06c 100644
--- a/src/collecty/plugins/interface.py
+++ b/src/collecty/plugins/interface.py
@@ -233,20 +233,10 @@ class InterfaceObject(base.Object):
 			path = os.path.join(interface_path, "statistics", file)
 
 			# Open file and read it's content.
-			f = None
-			try:
-				f = open(path)
-
+			with open(path) as f:
 				line = f.readline()
 				line = line.strip()
 				ret.append(line)
-			except:
-				ret.append("0")
-				raise
-
-			finally:
-				if f:
-					f.close()
 
 		return ret
 
diff --git a/src/collecty/plugins/memory.py b/src/collecty/plugins/memory.py
index 01e4d66..82791f6 100644
--- a/src/collecty/plugins/memory.py
+++ b/src/collecty/plugins/memory.py
@@ -90,11 +90,8 @@ class MemoryObject(base.Object):
 		return "default"
 
 	def collect(self):
-		f = None
-
-		try:
-			f = open("/proc/meminfo")
-			for line in f.readlines():
+		with open("/proc/meminfo") as f:
+			for line in f:
 				if line.startswith("MemTotal:"):
 					total = float(line.split()[1])
 				if line.startswith("MemFree:"):
@@ -121,9 +118,6 @@ class MemoryObject(base.Object):
 				ret.append("0")
 
 			return ret
-		finally:
-			if f:
-				f.close()
 
 
 class MemoryPlugin(base.Plugin):
diff --git a/src/collecty/plugins/processor.py b/src/collecty/plugins/processor.py
index bf37b75..11b3aa8 100644
--- a/src/collecty/plugins/processor.py
+++ b/src/collecty/plugins/processor.py
@@ -109,12 +109,8 @@ class ProcessorObject(base.Object):
 		"""
 			Reads the CPU usage.
 		"""
-		f = None
-
-		try:
-			f = open("/proc/stat")
-
-			for line in f.readlines():
+		with open("/proc/stat") as f:
+			for line in f:
 				if not line.startswith("cpu"):
 					continue
 
@@ -131,9 +127,6 @@ class ProcessorObject(base.Object):
 					columns[6], # irq
 					columns[7], # sirq
 				)
-		finally:
-			if f:
-				f.close()
 
 
 class ProcessorPlugin(base.Plugin):
-- 
2.47.3