diff --git a/lib/tao/config/__init__.py b/lib/tao/config/__init__.py
index 9e0efbb..4876c01 100644
--- a/lib/tao/config/__init__.py
+++ b/lib/tao/config/__init__.py
@@ -1,4 +1,4 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from .envvars import * # pylint: disable=wildcard-import
+from .envvars import TAOENV
diff --git a/lib/tfw/__init__.py b/lib/tfw/__init__.py
index 1179607..ab6c8a6 100644
--- a/lib/tfw/__init__.py
+++ b/lib/tfw/__init__.py
@@ -1,3 +1,5 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
+from .event_handler_base import TriggerlessEventHandler, TriggeredEventHandler
+from .fsm_base import FSMBase
diff --git a/lib/tfw/components/__init__.py b/lib/tfw/components/__init__.py
new file mode 100644
index 0000000..661a777
--- /dev/null
+++ b/lib/tfw/components/__init__.py
@@ -0,0 +1,8 @@
+# Copyright (C) 2018 Avatao.com Innovative Learning Kft.
+# All Rights Reserved. See LICENSE file for details.
+
+from .directory_monitoring_event_handler import DirectoryMonitoringEventHandler
+from .process_managing_event_handler import ProcessManagingEventHandler
+from .terminado_event_handler import TerminadoEventHandler
+from .source_code_event_handler import SourceCodeEventHandler
+from .history_monitor import HistoryMonitor, BashMonitor, GDBMonitor
diff --git a/lib/tfw/components/directory_monitor.py b/lib/tfw/components/directory_monitor.py
index ccec00f..9726eb9 100644
--- a/lib/tfw/components/directory_monitor.py
+++ b/lib/tfw/components/directory_monitor.py
@@ -6,7 +6,7 @@ from functools import wraps
 from watchdog.observers import Observer
 from watchdog.events import FileSystemEventHandler as FileSystemWatchdogEventHandler
 
-from tfw.networking.event_handlers.server_connector import ServerUplinkConnector
+from tfw.networking.event_handlers import ServerUplinkConnector
 from tfw.components.decorators import RateLimiter
 
 from tfw.config.logs import logging
diff --git a/lib/tfw/components/directory_monitoring_event_handler.py b/lib/tfw/components/directory_monitoring_event_handler.py
index 1f29212..ad7ea69 100644
--- a/lib/tfw/components/directory_monitoring_event_handler.py
+++ b/lib/tfw/components/directory_monitoring_event_handler.py
@@ -3,9 +3,9 @@
 
 from os.path import isdir, exists
 
-from tfw.components.directory_monitor import DirectoryMonitor
-from tfw.event_handler_base import TriggerlessEventHandler
+from tfw import TriggerlessEventHandler
 from tfw.config.logs import logging
+from .directory_monitor import DirectoryMonitor
 
 LOG = logging.getLogger(__name__)
 
diff --git a/lib/tfw/components/history_monitor.py b/lib/tfw/components/history_monitor.py
index 690ec7b..1665ad9 100644
--- a/lib/tfw/components/history_monitor.py
+++ b/lib/tfw/components/history_monitor.py
@@ -9,8 +9,8 @@ from abc import ABC, abstractmethod
 from watchdog.observers import Observer
 from watchdog.events import PatternMatchingEventHandler
 
-from tfw.components.mixins.callback_mixin import CallbackMixin
-from tfw.components.decorators.rate_limiter import RateLimiter
+from tfw.components.mixins import CallbackMixin
+from tfw.components.decorators import RateLimiter
 
 
 class CallbackEventHandler(PatternMatchingEventHandler, ABC):
diff --git a/lib/tfw/components/mixins/__init__.py b/lib/tfw/components/mixins/__init__.py
index 777f20e..8003c33 100644
--- a/lib/tfw/components/mixins/__init__.py
+++ b/lib/tfw/components/mixins/__init__.py
@@ -2,3 +2,4 @@
 # All Rights Reserved. See LICENSE file for details.
 
 from .supervisor_mixin import SupervisorMixin
+from .callback_mixin import CallbackMixin
diff --git a/lib/tfw/components/process_managing_event_handler.py b/lib/tfw/components/process_managing_event_handler.py
index 8ccac85..f069c67 100644
--- a/lib/tfw/components/process_managing_event_handler.py
+++ b/lib/tfw/components/process_managing_event_handler.py
@@ -3,10 +3,10 @@
 
 from xmlrpc.client import Fault as SupervisorFault
 
-from tfw.event_handler_base import TriggerlessEventHandler
+from tfw import TriggerlessEventHandler
 from tfw.components.mixins import SupervisorMixin
-from tfw.components.directory_monitor import with_monitor_paused
 from tfw.config.logs import logging
+from .directory_monitor import with_monitor_paused
 
 LOG = logging.getLogger(__name__)
 
diff --git a/lib/tfw/components/source_code_event_handler.py b/lib/tfw/components/source_code_event_handler.py
index fbaffd8..2c8657d 100644
--- a/lib/tfw/components/source_code_event_handler.py
+++ b/lib/tfw/components/source_code_event_handler.py
@@ -6,9 +6,9 @@ from glob import glob
 from fnmatch import fnmatchcase
 from collections import Iterable
 
-from tfw.event_handler_base import TriggerlessEventHandler
-from tfw.components.directory_monitor import DirectoryMonitor
+from tfw import TriggerlessEventHandler
 from tfw.config.logs import logging
+from .directory_monitor import DirectoryMonitor
 
 LOG = logging.getLogger(__name__)
 
@@ -154,8 +154,8 @@ class SourceCodeEventHandler(TriggerlessEventHandler):
                 self.read(data)
             except IndexError:
                 data['content'] = 'No files in this directory :('
-        except EnvironmentError:
-            LOG.error('Failed to select directory "%s"', data['directory'])
+        except EnvironmentError as err:
+            LOG.error('Failed to select directory "%s". Reason: %s', data['directory'], str(err))
         return data
 
     def exclude(self, data):
diff --git a/lib/tfw/components/terminado_event_handler.py b/lib/tfw/components/terminado_event_handler.py
index 76621a4..58ccd4b 100644
--- a/lib/tfw/components/terminado_event_handler.py
+++ b/lib/tfw/components/terminado_event_handler.py
@@ -1,11 +1,11 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from tfw.components.terminado_mini_server import TerminadoMiniServer
-from tfw.event_handler_base import TriggerlessEventHandler
+from tfw import TriggerlessEventHandler
 from tfw.config import TFWENV
 from tfw.config.logs import logging
 from tao.config import TAOENV
+from .terminado_mini_server import TerminadoMiniServer
 
 LOG = logging.getLogger(__name__)
 
diff --git a/lib/tfw/config/__init__.py b/lib/tfw/config/__init__.py
index 215a5fa..3614ad9 100644
--- a/lib/tfw/config/__init__.py
+++ b/lib/tfw/config/__init__.py
@@ -1,4 +1,4 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from .envvars import *
+from .envvars import TFWENV
diff --git a/lib/tfw/event_handler_base.py b/lib/tfw/event_handler_base.py
index d5e3fc2..48eec2d 100644
--- a/lib/tfw/event_handler_base.py
+++ b/lib/tfw/event_handler_base.py
@@ -3,8 +3,8 @@
 
 from abc import ABC, abstractmethod
 
-from tfw.networking.serialization import deserialize_all
-from tfw.networking.event_handlers.server_connector import ServerConnector
+from tfw.networking import deserialize_all
+from tfw.networking.event_handlers import ServerConnector
 
 
 class EventHandlerBase(ABC):
diff --git a/lib/tfw/fsm_base.py b/lib/tfw/fsm_base.py
index 412adb9..545c0b6 100644
--- a/lib/tfw/fsm_base.py
+++ b/lib/tfw/fsm_base.py
@@ -5,7 +5,7 @@ from typing import List
 
 from transitions import Machine
 
-from tfw.components.mixins.callback_mixin import CallbackMixin
+from tfw.components.mixins import CallbackMixin
 
 
 class FSMBase(CallbackMixin):
diff --git a/lib/tfw/networking/__init__.py b/lib/tfw/networking/__init__.py
index 1179607..161659b 100644
--- a/lib/tfw/networking/__init__.py
+++ b/lib/tfw/networking/__init__.py
@@ -1,3 +1,9 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
+from .serialization import decode_if_needed, encode_if_needed, serialize_all, deserialize_all
+from .zmq_connector_base import ZMQConnectorBase
+from .controller_connector import ControllerConnector
+from .message_sender import MessageSender
+from .event_handlers.server_connector import ServerUplinkConnector as TFWServerConnector
+from .server.tfw_server import TFWServer
diff --git a/lib/tfw/networking/controller_connector.py b/lib/tfw/networking/controller_connector.py
index 427eefc..708c46d 100644
--- a/lib/tfw/networking/controller_connector.py
+++ b/lib/tfw/networking/controller_connector.py
@@ -5,7 +5,7 @@ import zmq
 from zmq.eventloop.zmqstream import ZMQStream
 
 from tfw.config import TFWENV
-from tfw.networking.zmq_connector_base import ZMQConnectorBase
+from tfw.networking import ZMQConnectorBase
 
 
 class ControllerConnector(ZMQConnectorBase):
diff --git a/lib/tfw/networking/event_handlers/__init__.py b/lib/tfw/networking/event_handlers/__init__.py
index 1179607..b3ad530 100644
--- a/lib/tfw/networking/event_handlers/__init__.py
+++ b/lib/tfw/networking/event_handlers/__init__.py
@@ -1,3 +1,4 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
+from .server_connector import ServerConnector, ServerUplinkConnector, ServerDownlinkConnector
diff --git a/lib/tfw/networking/event_handlers/server_connector.py b/lib/tfw/networking/event_handlers/server_connector.py
index f202af6..4479e75 100644
--- a/lib/tfw/networking/event_handlers/server_connector.py
+++ b/lib/tfw/networking/event_handlers/server_connector.py
@@ -6,9 +6,9 @@ from functools import partial
 import zmq
 from zmq.eventloop.zmqstream import ZMQStream
 
-from tfw.networking.serialization import serialize_all
+from tfw.networking import serialize_all
+from tfw.networking import ZMQConnectorBase
 from tfw.config import TFWENV
-from tfw.networking.zmq_connector_base import ZMQConnectorBase
 
 
 class ServerDownlinkConnector(ZMQConnectorBase):
diff --git a/lib/tfw/message_sender.py b/lib/tfw/networking/message_sender.py
similarity index 87%
rename from lib/tfw/message_sender.py
rename to lib/tfw/networking/message_sender.py
index 18a985d..ba08daf 100644
--- a/lib/tfw/message_sender.py
+++ b/lib/tfw/networking/message_sender.py
@@ -3,7 +3,7 @@
 
 from datetime import datetime
 
-from tfw.networking.event_handlers.server_connector import ServerUplinkConnector
+from tfw.networking.event_handlers import ServerUplinkConnector
 
 
 class MessageSender:
diff --git a/lib/tfw/networking/server/__init__.py b/lib/tfw/networking/server/__init__.py
index 1179607..e4c1b25 100644
--- a/lib/tfw/networking/server/__init__.py
+++ b/lib/tfw/networking/server/__init__.py
@@ -1,3 +1,7 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
+from .event_handler_connector import EventHandlerConnector, EventHandlerUplinkConnector, EventHandlerDownlinkConnector
+from .tfw_server import TFWServer
+from .zmq_websocket_handler import ZMQWebSocketProxy
+from .controller_responder import ControllerResponder
diff --git a/lib/tfw/networking/server/controller_responder.py b/lib/tfw/networking/server/controller_responder.py
index a745bcb..02d442f 100644
--- a/lib/tfw/networking/server/controller_responder.py
+++ b/lib/tfw/networking/server/controller_responder.py
@@ -1,8 +1,7 @@
 # Copyright (C) 2018 Avatao.com Innovative Learning Kft.
 # All Rights Reserved. See LICENSE file for details.
 
-from tfw.networking.controller_connector import ControllerConnector
-from tfw.networking.serialization import deserialize_all, serialize_all
+from tfw.networking import deserialize_all, serialize_all, ControllerConnector
 
 
 class ControllerResponder:
diff --git a/lib/tfw/networking/server/event_handler_connector.py b/lib/tfw/networking/server/event_handler_connector.py
index f0a2b55..d8f3801 100644
--- a/lib/tfw/networking/server/event_handler_connector.py
+++ b/lib/tfw/networking/server/event_handler_connector.py
@@ -4,8 +4,7 @@
 import zmq
 from zmq.eventloop.zmqstream import ZMQStream
 
-from tfw.networking.zmq_connector_base import ZMQConnectorBase
-from tfw.networking.serialization import serialize_all
+from tfw.networking import ZMQConnectorBase, serialize_all
 from tfw.config import TFWENV
 from tfw.config.logs import logging
 
diff --git a/lib/tfw/networking/server/tfw_server.py b/lib/tfw/networking/server/tfw_server.py
index 7df8c1b..02168f5 100644
--- a/lib/tfw/networking/server/tfw_server.py
+++ b/lib/tfw/networking/server/tfw_server.py
@@ -5,10 +5,11 @@ from collections import defaultdict
 
 from tornado.web import Application
 
-from tfw.networking.server.zmq_websocket_handler import ZMQWebSocketProxy
-from tfw.networking.event_handlers.server_connector import ServerUplinkConnector
-from tfw.message_sender import MessageSender
+from tfw.networking import MessageSender
+from tfw.networking.event_handlers import ServerUplinkConnector
+from tfw.networking.server import EventHandlerConnector
 from tfw.config.logs import logging
+from .zmq_websocket_handler import ZMQWebSocketProxy
 
 LOG = logging.getLogger(__name__)
 
@@ -19,10 +20,12 @@ class TFWServer:
         self._fsm_updater = FSMUpdater(self._fsm)
         self._fsm_manager = FSMManager(self._fsm)
         self._fsm.subscribe_callback(self._fsm_updater.update)
+        self._event_handler_connector = EventHandlerConnector()
 
         self.application = Application(
             [(r'/ws', ZMQWebSocketProxy, {'make_response': self.make_response,
-                                          'proxy_filter': self.proxy_filter})]
+                                          'proxy_filter': self.proxy_filter,
+                                          'event_handler_connector': self._event_handler_connector})]
         )
         #self.controller_responder = ControllerResponder(self.fsm) TODO: add this once controller stuff is resolved
 
diff --git a/lib/tfw/networking/server/zmq_websocket_handler.py b/lib/tfw/networking/server/zmq_websocket_handler.py
index 2f21249..c0c64bb 100644
--- a/lib/tfw/networking/server/zmq_websocket_handler.py
+++ b/lib/tfw/networking/server/zmq_websocket_handler.py
@@ -6,17 +6,18 @@ from abc import ABC, abstractmethod
 
 from tornado.websocket import WebSocketHandler
 
-from tfw.networking.serialization import deserialize_all
-from tfw.networking.server.event_handler_connector import EventHandlerConnector
+from tfw.networking import deserialize_all
 from tfw.config.logs import logging
 
 LOG = logging.getLogger(__name__)
 
 
 class ZMQWebSocketHandler(WebSocketHandler, ABC):
-    _event_handler_connector = EventHandlerConnector()
     instances = set()
 
+    def initialize(self, **kwargs):
+        self._event_handler_connector = kwargs['event_handler_connector']
+
     def prepare(self):
         ZMQWebSocketHandler.instances.add(self)
 
@@ -27,14 +28,13 @@ class ZMQWebSocketHandler(WebSocketHandler, ABC):
         LOG.debug('WebSocket connection initiated')
         self._event_handler_connector.register_callback(self.zmq_callback)
 
-    @classmethod
-    def zmq_callback(cls, msg_parts):
-        keyhandlers = {'mirror': cls.mirror}
+    def zmq_callback(self, msg_parts):
+        keyhandlers = {'mirror': self.mirror}
 
         key, data = deserialize_all(*msg_parts)
         LOG.debug('Received on pull socket: %s', data)
         if key not in keyhandlers:
-            for instance in cls.instances:
+            for instance in ZMQWebSocketHandler.instances:
                 instance.write_message(data)
         else:
             try:
@@ -42,10 +42,9 @@ class ZMQWebSocketHandler(WebSocketHandler, ABC):
             except KeyError:
                 LOG.error('Invalid mirror message format! Ignoring.')
 
-    @classmethod
-    def mirror(cls, data):
+    def mirror(self, data):
         key = data['key']
-        cls._event_handler_connector.send_message({'data': data}, key)
+        self._event_handler_connector.send_message({'data': data}, key)
 
     def on_message(self, message):
         LOG.debug('Received on WebSocket: %s', message)
@@ -65,10 +64,11 @@ class ZMQWebSocketHandler(WebSocketHandler, ABC):
 
 class ZMQWebSocketProxy(ZMQWebSocketHandler):
     # pylint: disable=abstract-method
-    def initialize(self, make_response, proxy_filter):
+    def initialize(self, **kwargs):
         # pylint: disable=arguments-differ
-        self._make_response = make_response
-        self._proxy_filter = proxy_filter
+        super(ZMQWebSocketProxy, self).initialize(**kwargs)
+        self._make_response = kwargs['make_response']
+        self._proxy_filter = kwargs['proxy_filter']
 
     def on_message(self, message):
         message = json.loads(message)