default to python3

fritzbox_connection_uptime.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_connection_uptime - A munin plugin for Linux to monitor AVM Fritzbox connection uptime
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_cpu_temperature.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_cpu_temperature - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_cpu_usage.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_cpu_usage - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_helper.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_helper - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt
@@ -49,7 +49,7 @@ def get_session_id(server, username, password, port=80):
     try:
         state = get_login_state(box_url)
     except Exception as ex:
-        raise Exception("failed to get challenge") from ex
+        raise Exception("failed to get challenge")
     if state.is_pbkdf2:
         # print("PBKDF2 supported")
         challenge_response = calculate_pbkdf2_response(state.challenge, password)

fritzbox_memory_usage.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_memory_usage - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_power_consumption.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # coding=utf-8
 """
   fritzbox_power_consumption - A munin plugin for Linux to monitor AVM Fritzbox

fritzbox_traffic.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_traffic - A munin plugin for Linux to monitor AVM Fritzbox WAN traffic
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_uptime.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_uptime - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt

fritzbox_wifi_devices.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 """
   fritzbox_wifi_devices - A munin plugin for Linux to monitor AVM Fritzbox
   Copyright (C) 2015 Christian Stade-Schuldt