Small fixes based on github comments

TEST_APPS/testcases/example/test_cmdline.py

@@ -19,7 +19,7 @@ from icetea_lib.bench import Bench
 class Testcase(Bench):
     def __init__(self):
         self.device = None
-        Bench.__init__(self,
+        super(Testcase, self).__init__(self,
                        name="test_cmdline",
                        title="Smoke test for command line interface",
                        status="released",

TEST_APPS/testcases/netsocket/SOCKET_BIND_PORT.py

@@ -25,7 +25,7 @@ class MultipleTestcase(Bench):
         }
 
         testcase_args.update(kwargs)
-        Bench.__init__(self, **testcase_args)
+        super(MultipleTestcase, self).__init__(self, **testcase_args)
 
     def setup(self):
         self.command("dut1", "ifup")

TEST_APPS/testcases/netsocket/TCPSERVER_ACCEPT.py

@@ -3,13 +3,13 @@
 #
 from icetea_lib.bench import Bench
 from interface import interfaceUp, interfaceDown
-from icetea_lib.tools import test_case
 import threading
 import time
 
+
 class Testcase(Bench):
     def __init__(self):
-        Bench.__init__(self,
+        super(Testcase, self).__init__(self,
                        name="TCPSERVER_ACCEPT",
                        title = "TCPSERVER_ACCEPT",
                        purpose = "Test that TCPServer::bind(), TCPServer::listen() and TCPServer::accept() works",

TEST_APPS/testcases/netsocket/TCPSOCKET_ECHOTEST_BURST_SHORT.py

@@ -2,14 +2,13 @@
 # Copyright (c) 2018, Arm Limited and affiliates.
 #
 from icetea_lib.bench import Bench, TestStepFail
-from icetea_lib.tools import test_case
 import random
 import string
 
 
 class Testcase(Bench):
     def __init__(self):
-        Bench.__init__(self,
+        super(Testcase, self).__init__(self,
                        name="TCPSOCKET_ECHOTEST_BURST_SHORT",
                        title="TCPSOCKET_ECHOTEST_BURST_SHORT",
                        purpose="Verify that TCPSocket can send burst of packets to echo server and read incoming packets",

requirements.txt

@@ -6,7 +6,7 @@ IntelHex>=1.3
 junit-xml
 pyYAML
 requests
-mbed-ls>=0.2.13,<2.0
+mbed-ls>=1.4.2,==1.*
 mbed-host-tests>=1.1.2
 mbed-greentea>=0.2.24
 beautifulsoup4>=4

tools/test.py

@@ -21,7 +21,6 @@ TEST BUILD
 from __future__ import print_function, division, absolute_import
 import sys
 import os
-import subprocess
 import fnmatch
 
 ROOT = os.path.abspath(os.path.join(os.path.dirname(__file__), ".."))

tools/test_api.py

@@ -28,7 +28,6 @@ import pprint
 import random
 import argparse
 import datetime
-import errno
 import threading
 import ctypes
 import functools