[improvement] internet availability checking code

CHANGELOG.md

@@ -4,7 +4,10 @@ All notable changes to this project will be documented in this file.
 
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 
-## [0.9.1]
+## [0.9.1] 2020
+### Improvements
+- Internet availability checking code
+
 ### Fixes
 - Arch
     - wrong dialog titles

bauh/commons/internet.py

@@ -1,13 +1,12 @@
-import subprocess
+import http.client as http_client
-import traceback
-from subprocess import Popen
 
 
 def is_available() -> bool:
+    conn = http_client.HTTPConnection("www.google.com", timeout=5)
     try:
-        res = Popen(['ping', '-q', '-w1', '-c1', 'google.com'], stderr=subprocess.DEVNULL, stdout=subprocess.DEVNULL)
+        conn.request("HEAD", "/")
-        res.wait()
+        conn.close()
-        return res.returncode == 0
+        return True
     except:
-        traceback.print_exc()
+        conn.close()
         return False