diff --git a/.flake8 b/.flake8
deleted file mode 100644
index d9ad0b40..00000000
--- a/.flake8
+++ /dev/null
@@ -1,5 +0,0 @@
-[flake8]
-ignore = E203, E266, E501, W503, F403, F401
-max-line-length = 79
-max-complexity = 18
-select = B,C,E,F,W,T4,B9
diff --git a/.pre-commit-config.yaml b/.pre-commit-config.yaml
index 4186ac89..d573211e 100644
--- a/.pre-commit-config.yaml
+++ b/.pre-commit-config.yaml
@@ -1,6 +1,24 @@
 repos:
--   repo: https://github.com/python/black
-    rev: stable
-    hooks:
-    - id: black
-      language_version: python3.7
+- repo: https://github.com/python/black
+  rev: stable
+  hooks:
+  - id: black
+    language_version: python3.7
+
+- repo: https://github.com/pre-commit/pre-commit-hooks
+  rev: v2.3.0
+  hooks:
+  - id: flake8
+    additional_dependencies: [flake8-docstrings]
+
+
+- repo: https://github.com/pre-commit/mirrors-isort
+  rev: v4.3.21
+  hooks:
+  - id: isort
+
+- repo: https://github.com/pre-commit/mirrors-mypy
+  rev: v0.740
+  hooks:
+  - id: mypy
+#    args: [--no-strict-optional, --ignore-missing-imports]
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
new file mode 100644
index 00000000..806fd1c8
--- /dev/null
+++ b/azure-pipelines.yml
@@ -0,0 +1,47 @@
+trigger:
+- master
+pr:
+- master
+
+pool:
+  vmImage: 'ubuntu-latest'
+strategy:
+  matrix:
+    Python36:
+      python.version: '3.6'
+    Python37:
+      python.version: '3.7'
+#    Python38:
+#      python.version: '3.8'
+
+steps:
+- task: UsePythonVersion@0
+  inputs:
+    versionSpec: '$(python.version)'
+  displayName: 'Use Python $(python.version)'
+
+- script: |
+    python -m pip install --upgrade pip
+    pip install -r requirements.txt
+    pip install pytest pytest-azurepipelines pytest-cov
+  displayName: 'Install dependencies'
+
+- script: |
+    pre-commit run black --all-files
+  displayName: 'Code formating (black)'
+
+- script: |
+    pre-commit run flake8 --all-files
+  displayName: 'Code formating (flake8)'
+
+- script: |
+    pre-commit run mypy --all-files
+  displayName: 'Typing checks (mypy)'
+
+- script: |
+    pre-commit run isort --all-files
+  displayName: 'Order of imports (isort)'
+
+- script: |
+    pytest --cov pyHS100 --cov-report html
+  displayName: 'Tests'
diff --git a/pyHS100/__init__.py b/pyHS100/__init__.py
index a1160082..a64b360d 100755
--- a/pyHS100/__init__.py
+++ b/pyHS100/__init__.py
@@ -1,13 +1,12 @@
-"""
-This module provides a way to interface with TP-Link's smart home devices,
-such as smart plugs (HS1xx), wall switches (HS2xx), and light bulbs (LB1xx).
+"""Python interface for TP-Link's smart home devices.
 
 All common, shared functionalities are available through `SmartDevice` class::
 
     x = SmartDevice("192.168.1.1")
     print(x.sys_info)
 
-For device type specific actions `SmartBulb` or `SmartPlug` must be used instead.
+For device type specific actions `SmartBulb`, `SmartPlug`, or `SmartStrip`
+ should be used instead.
 
 Module-specific errors are raised as `SmartDeviceException` and are expected
 to be handled by the user of the library.
@@ -22,7 +21,7 @@ from pyHS100.smartdevice import (
     SmartDeviceException,
 )
 from pyHS100.smartplug import SmartPlug
-from pyHS100.smartstrip import SmartStrip, SmartStripException
+from pyHS100.smartstrip import SmartStrip
 
 __all__ = [
     "Discover",
@@ -34,5 +33,4 @@ __all__ = [
     "SmartDeviceException",
     "SmartPlug",
     "SmartStrip",
-    "SmartStripException",
 ]
diff --git a/pyHS100/cli.py b/pyHS100/cli.py
index 4fd58952..5c71c971 100755
--- a/pyHS100/cli.py
+++ b/pyHS100/cli.py
@@ -48,9 +48,10 @@ pass_dev = click.make_pass_decorator(SmartDevice)
 @click.option("--bulb", default=False, is_flag=True)
 @click.option("--plug", default=False, is_flag=True)
 @click.option("--strip", default=False, is_flag=True)
+@click.version_option()
 @click.pass_context
 def cli(ctx, ip, host, alias, target, debug, bulb, plug, strip):
-    """A cli tool for controlling TP-Link smart home plugs."""
+    """A cli tool for controlling TP-Link smart home plugs."""  # noqa
     if debug:
         logging.basicConfig(level=logging.DEBUG)
     else:
@@ -66,9 +67,9 @@ def cli(ctx, ip, host, alias, target, debug, bulb, plug, strip):
         click.echo("Alias is given, using discovery to find host %s" % alias)
         host = find_host_from_alias(alias=alias, target=target)
         if host:
-            click.echo("Found hostname is {}".format(host))
+            click.echo(f"Found hostname is {host}")
         else:
-            click.echo("No device with name {} found".format(alias))
+            click.echo(f"No device with name {alias} found")
             return
 
     if host is None:
@@ -98,11 +99,15 @@ def cli(ctx, ip, host, alias, target, debug, bulb, plug, strip):
 @click.option("--save")
 @click.pass_context
 def dump_discover(ctx, save):
+    """Dump discovery information.
+
+    Useful for dumping into a file with `--save` to be added to the test suite.
+    """
     target = ctx.parent.params["target"]
     for dev in Discover.discover(target=target, return_raw=True).values():
         model = dev["system"]["get_sysinfo"]["model"]
         hw_version = dev["system"]["get_sysinfo"]["hw_ver"]
-        save_to = "%s_%s.json" % (model, hw_version)
+        save_to = f"{model}_{hw_version}.json"
         click.echo("Saving info to %s" % save_to)
         with open(save_to, "w") as f:
             import json
@@ -142,7 +147,7 @@ def find_host_from_alias(alias, target="255.255.255.255", timeout=1, attempts=3)
         % (alias, attempts, timeout)
     )
     for attempt in range(1, attempts):
-        click.echo("Attempt %s of %s" % (attempt, attempts))
+        click.echo(f"Attempt {attempt} of {attempts}")
         found_devs = Discover.discover(target=target, timeout=timeout).items()
         for ip, dev in found_devs:
             if dev.sync.get_alias().lower() == alias.lower():
@@ -162,11 +167,12 @@ def sysinfo(dev):
 @cli.command()
 @pass_dev
 @click.pass_context
-def state(ctx, dev):
+def state(ctx, dev: SmartDevice):
     """Print out device state and versions."""
     click.echo(
         click.style(
-            "== %s - %s ==" % (dev.sync.get_alias(), dev.sync.get_model()), bold=True
+            "== {} - {} ==".format(dev.sync.get_alias(), dev.sync.get_model()),
+            bold=True,
         )
     )
 
@@ -178,24 +184,25 @@ def state(ctx, dev):
     )
     if dev.num_children > 0:
         is_on = dev.sync.get_is_on()
-        aliases = dev.sync.get_alias()
-        for child in range(dev.num_children):
+        for plug in range(dev.plugs):
+            alias = plug.sync.get_alias()
             click.echo(
                 click.style(
-                    "  * %s state: %s"
-                    % (aliases[child], ("ON" if is_on[child] else "OFF")),
-                    fg="green" if is_on[child] else "red",
+                    "  * {} state: {}".format(
+                        alias, ("ON" if is_on else "OFF")
+                    ),
+                    fg="green" if is_on else "red",
                 )
             )
 
     click.echo("Host/IP: %s" % dev.host)
     for k, v in dev.sync.get_state_information().items():
-        click.echo("%s: %s" % (k, v))
+        click.echo(f"{k}: {v}")
     click.echo(click.style("== Generic information ==", bold=True))
     click.echo("Time:         %s" % dev.sync.get_time())
     click.echo("Hardware:     %s" % dev.sync.get_hw_info()["hw_ver"])
     click.echo("Software:     %s" % dev.sync.get_hw_info()["sw_ver"])
-    click.echo("MAC (rssi):   %s (%s)" % (dev.sync.get_mac(), dev.sync.get_rssi()))
+    click.echo("MAC (rssi):   {} ({})".format(dev.sync.get_mac(), dev.sync.get_rssi()))
     click.echo("Location:     %s" % dev.sync.get_location())
 
     ctx.invoke(emeter)
@@ -249,7 +256,7 @@ def emeter(dev, year, month, erase):
         click.echo("== For year %s ==" % year.year)
         emeter_status = dev.sync.get_emeter_monthly(year.year)
     elif month:
-        click.echo("== For month %s of %s ==" % (month.month, month.year))
+        click.echo(f"== For month {month.month} of {month.year} ==")
         emeter_status = dev.sync.get_emeter_daily(year=month.year, month=month.month)
     else:
         emeter_status = dev.sync.get_emeter_realtime()
@@ -306,13 +313,13 @@ def temperature(dev: SmartBulb, temperature):
 @click.pass_context
 @pass_dev
 def hsv(dev, ctx, h, s, v):
-    """Get or set color in HSV. (Bulb only)"""
+    """Get or set color in HSV. (Bulb only)."""
     if h is None or s is None or v is None:
         click.echo("Current HSV: %s %s %s" % dev.sync.get_hsv())
     elif s is None or v is None:
         raise click.BadArgumentUsage("Setting a color requires 3 values.", ctx)
     else:
-        click.echo("Setting HSV: %s %s %s" % (h, s, v))
+        click.echo(f"Setting HSV: {h} {s} {v}")
         dev.sync.set_hsv(h, s, v)
 
 
diff --git a/pyHS100/discover.py b/pyHS100/discover.py
index bf42926c..867f7e60 100755
--- a/pyHS100/discover.py
+++ b/pyHS100/discover.py
@@ -1,3 +1,4 @@
+"""Discovery module for TP-Link Smart Home devices."""
 import json
 import logging
 import socket
@@ -25,8 +26,6 @@ class Discover:
     you can initialize the corresponding device class directly without this.
 
     The protocol uses UDP broadcast datagrams on port 9999 for discovery.
-
-
     """
 
     DISCOVERY_QUERY = {
@@ -46,8 +45,8 @@ class Discover:
         discovery_packets=3,
         return_raw=False,
     ) -> Dict[str, SmartDevice]:
+        """Discover devices.
 
-        """
         Sends discovery message to 255.255.255.255:9999 in order
         to detect available supported devices in the local network,
         and waits for given timeout for answers from devices.
diff --git a/pyHS100/protocol.py b/pyHS100/protocol.py
index b2df8e04..f29b4bed 100755
--- a/pyHS100/protocol.py
+++ b/pyHS100/protocol.py
@@ -1,3 +1,14 @@
+"""Implementation of the TP-Link Smart Home Protocol.
+
+Encryption/Decryption methods based on the works of
+Lubomir Stroetmann and Tobias Esser
+
+https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/
+https://github.com/softScheck/tplink-smartplug/
+
+which are licensed under the Apache License, Version 2.0
+http://www.apache.org/licenses/LICENSE-2.0
+"""
 import asyncio
 import json
 import logging
@@ -8,17 +19,7 @@ _LOGGER = logging.getLogger(__name__)
 
 
 class TPLinkSmartHomeProtocol:
-    """Implementation of the TP-Link Smart Home Protocol.
-
-    Encryption/Decryption methods based on the works of
-    Lubomir Stroetmann and Tobias Esser
-
-    https://www.softscheck.com/en/reverse-engineering-tp-link-hs110/
-    https://github.com/softScheck/tplink-smartplug/
-
-    which are licensed under the Apache License, Version 2.0
-    http://www.apache.org/licenses/LICENSE-2.0
-    """
+    """Implementation of the TP-Link Smart Home protocol."""
 
     INITIALIZATION_VECTOR = 171
     DEFAULT_PORT = 9999
@@ -71,7 +72,7 @@ class TPLinkSmartHomeProtocol:
         return json.loads(response)
 
     @staticmethod
-    def encrypt(request: str) -> bytearray:
+    def encrypt(request: str) -> bytes:
         """
         Encrypt a request for a TP-Link Smart Home Device.
 
diff --git a/pyHS100/smartbulb.py b/pyHS100/smartbulb.py
index 69edd8b4..ee1c207f 100644
--- a/pyHS100/smartbulb.py
+++ b/pyHS100/smartbulb.py
@@ -1,3 +1,4 @@
+"""Module for bulbs."""
 import re
 from typing import Any, Dict, Tuple
 
@@ -10,8 +11,8 @@ TPLINK_KELVIN = {
     "LB230": (2500, 9000),
     "KB130": (2500, 9000),
     "KL130": (2500, 9000),
-    "KL120\(EU\)": (2700, 6500),
-    "KL120\(US\)": (2700, 5000),
+    r"KL120\(EU\)": (2700, 6500),
+    r"KL120\(US\)": (2700, 5000),
 }
 
 
@@ -162,7 +163,9 @@ class SmartBulb(SmartDevice):
     async def set_hsv(self, hue: int, saturation: int, value: int):
         """Set new HSV.
 
-        :param tuple state: hue, saturation and value (degrees, %, %)
+        :param int hue: hue in degrees
+        :param int saturation: saturation in percentage [0,100]
+        :param int value: value in percentage [0, 100]
         """
         if not await self.is_color():
             raise SmartDeviceException("Bulb does not support color.")
@@ -222,7 +225,7 @@ class SmartBulb(SmartDevice):
         await self.set_light_state(light_state)
 
     async def get_brightness(self) -> int:
-        """Current brightness of the device.
+        """Return the current brightness.
 
         :return: brightness in percent
         :rtype: int
@@ -237,7 +240,7 @@ class SmartBulb(SmartDevice):
             return int(light_state["brightness"])
 
     async def set_brightness(self, brightness: int) -> None:
-        """Set the current brightness of the device.
+        """Set the brightness.
 
         :param int brightness: brightness in percent
         """
@@ -255,7 +258,7 @@ class SmartBulb(SmartDevice):
         :return: Bulb information dict, keys in user-presentable form.
         :rtype: dict
         """
-        info = {
+        info: Dict[str, Any] = {
             "Brightness": await self.get_brightness(),
             "Is dimmable": await self.is_dimmable(),
         }  # type: Dict[str, Any]
@@ -281,4 +284,5 @@ class SmartBulb(SmartDevice):
         await self.set_light_state({"on_off": 1})
 
     async def get_has_emeter(self) -> bool:
+        """Return that the bulb has an emeter."""
         return True
diff --git a/pyHS100/smartdevice.py b/pyHS100/smartdevice.py
index 8b770a08..53738221 100755
--- a/pyHS100/smartdevice.py
+++ b/pyHS100/smartdevice.py
@@ -1,6 +1,4 @@
-"""
-pyHS100
-Python library supporting TP-Link Smart Plugs/Switches (HS100/HS110/Hs200).
+"""Python library supporting TP-Link Smart Home devices.
 
 The communication protocol was reverse engineered by Lubomir Stroetmann and
 Tobias Esser in 'Reverse Engineering the TP-Link HS110':
@@ -105,7 +103,7 @@ class SmartDevice:
         if protocol is None:  # pragma: no cover
             protocol = TPLinkSmartHomeProtocol()
         self.protocol = protocol
-        self.emeter_type = "emeter"  # type: str
+        self.emeter_type = "emeter"
         self.context = context
         self.num_children = 0
         self.cache_ttl = timedelta(seconds=cache_ttl)
@@ -115,13 +113,14 @@ class SmartDevice:
             self.context,
             self.cache_ttl,
         )
-        self.cache = defaultdict(lambda: defaultdict(lambda: None))
+        self.cache = defaultdict(lambda: defaultdict(lambda: None))  # type: ignore
         self._device_type = DeviceType.Unknown
         self.ioloop = ioloop or asyncio.get_event_loop()
         self.sync = SyncSmartDevice(self, ioloop=self.ioloop)
 
     def _result_from_cache(self, target, cmd) -> Optional[Dict]:
         """Return query result from cache if still fresh.
+
         Only results from commands starting with `get_` are considered cacheable.
 
         :param target: Target system
@@ -146,7 +145,7 @@ class SmartDevice:
         return None
 
     def _insert_to_cache(self, target: str, cmd: str, response: Dict) -> None:
-        """Internal function to add response to cache.
+        """Add response for a given command to the cache.
 
         :param target: Target system
         :param cmd: Command
@@ -167,9 +166,8 @@ class SmartDevice:
         :rtype: dict
         :raises SmartDeviceException: if command was not executed correctly
         """
-        if self.context is None:
-            request = {target: {cmd: arg}}
-        else:
+        request: Dict[str, Any] = {target: {cmd: arg}}
+        if self.context is not None:
             request = {"context": {"child_ids": [self.context]}, target: {cmd: arg}}
 
         try:
@@ -179,24 +177,20 @@ class SmartDevice:
                 response = await self.protocol.query(host=self.host, request=request)
                 self._insert_to_cache(target, cmd, response)
         except Exception as ex:
-            raise SmartDeviceException(
-                "Communication error on %s:%s" % (target, cmd)
-            ) from ex
+            raise SmartDeviceException(f"Communication error on {target}:{cmd}") from ex
 
         if target not in response:
-            raise SmartDeviceException(
-                "No required {} in response: {}".format(target, response)
-            )
+            raise SmartDeviceException(f"No required {target} in response: {response}")
 
         result = response[target]
         if "err_code" in result and result["err_code"] != 0:
-            raise SmartDeviceException("Error on {}.{}: {}".format(target, cmd, result))
+            raise SmartDeviceException(f"Error on {target}.{cmd}: {result}")
 
         if cmd not in result:
-            raise SmartDeviceException("No command in response: {}".format(response))
+            raise SmartDeviceException(f"No command in response: {response}")
         result = result[cmd]
         if "err_code" in result and result["err_code"] != 0:
-            raise SmartDeviceException("Error on {} {}: {}".format(target, cmd, result))
+            raise SmartDeviceException(f"Error on {target} {cmd}: {result}")
 
         if "err_code" in result:
             del result["err_code"]
@@ -211,7 +205,7 @@ class SmartDevice:
         """
         raise NotImplementedError()
 
-    async def get_sys_info(self) -> Dict:
+    async def get_sys_info(self) -> Dict[str, Any]:
         """Retrieve system information.
 
         :return: sysinfo
@@ -415,11 +409,10 @@ class SmartDevice:
         await self._query_helper("system", "set_mac_addr", {"mac": mac})
 
     async def get_emeter_realtime(self) -> EmeterStatus:
-        """Retrive current energy readings.
+        """Retrieve current energy readings.
 
         :returns: current readings or False
         :rtype: dict, None
-                  None if device has no energy meter or error occurred
         :raises SmartDeviceException: on error
         """
         if not await self.get_has_emeter():
@@ -437,7 +430,6 @@ class SmartDevice:
                       month)
         :param kwh: return usage in kWh (default: True)
         :return: mapping of day of month to value
-                 None if device has no energy meter or error occurred
         :rtype: dict
         :raises SmartDeviceException: on error
         """
@@ -468,7 +460,6 @@ class SmartDevice:
         :param year: year for which to retrieve statistics (default: this year)
         :param kwh: return usage in kWh (default: True)
         :return: dict: mapping of month to value
-                 None if device has no energy meter
         :rtype: dict
         :raises SmartDeviceException: on error
         """
@@ -493,8 +484,6 @@ class SmartDevice:
         """Erase energy meter statistics.
 
         :return: True if statistics were deleted
-                 False if device has no energy meter.
-        :rtype: bool
         :raises SmartDeviceException: on error
         """
         if not await self.get_has_emeter():
@@ -502,15 +491,10 @@ class SmartDevice:
 
         await self._query_helper(self.emeter_type, "erase_emeter_stat", None)
 
-        # As query_helper raises exception in case of failure, we have
-        # succeeded when we are this far.
-        return True
-
     async def current_consumption(self) -> Optional[float]:
         """Get the current power consumption in Watt.
 
         :return: the current power consumption in Watts.
-                 None if device has no energy meter.
         :raises SmartDeviceException: on error
         """
         if not await self.get_has_emeter():
@@ -570,25 +554,30 @@ class SmartDevice:
 
     @property
     def is_bulb(self) -> bool:
+        """Return True if the device is a bulb."""
         return self._device_type == DeviceType.Bulb
 
     @property
     def is_plug(self) -> bool:
+        """Return True if the device is a plug."""
         return self._device_type == DeviceType.Plug
 
     @property
     def is_strip(self) -> bool:
+        """Return True if the device is a strip."""
         return self._device_type == DeviceType.Strip
 
     async def is_dimmable(self):
+        """Return  True if the device is dimmable."""
         return False
 
     @property
     def is_variable_color_temp(self) -> bool:
+        """Return True if the device supports color temperature."""
         return False
 
     def __repr__(self):
-        return "<%s model %s at %s (%s), is_on: %s - dev specific: %s>" % (
+        return "<{} model {} at {} ({}), is_on: {} - dev specific: {}>".format(
             self.__class__.__name__,
             self.sync.get_model(),
             self.host,
diff --git a/pyHS100/smartplug.py b/pyHS100/smartplug.py
index 60705f6b..25bf3c4a 100644
--- a/pyHS100/smartplug.py
+++ b/pyHS100/smartplug.py
@@ -1,3 +1,4 @@
+"""Module for plugs."""
 import datetime
 import logging
 from typing import Any, Dict
diff --git a/pyHS100/smartstrip.py b/pyHS100/smartstrip.py
index e8299c2c..bd858d65 100755
--- a/pyHS100/smartstrip.py
+++ b/pyHS100/smartstrip.py
@@ -1,36 +1,38 @@
-import asyncio
+"""Module for multi-socket devices (HS300, HS107).
+
+.. todo:: describe how this interfaces with single plugs.
+"""
 import datetime
 import logging
-from typing import Any, Dict, Optional, Union
+from collections import defaultdict
+from typing import Any, DefaultDict, Dict, List
 
 from pyHS100.protocol import TPLinkSmartHomeProtocol
-from pyHS100.smartdevice import DeviceType, EmeterStatus, SmartDeviceException
+from pyHS100.smartdevice import DeviceType
 from pyHS100.smartplug import SmartPlug
 
 _LOGGER = logging.getLogger(__name__)
 
 
-class SmartStripException(SmartDeviceException):
-    """SmartStripException gets raised for errors specific to the smart strip."""
-
-    pass
-
-
 class SmartStrip(SmartPlug):
     """Representation of a TP-Link Smart Power Strip.
 
     Usage example when used as library:
     p = SmartStrip("192.168.1.105")
 
+    # query the state of the strip
+    print(p.sync.is_on())
+
     # change state of all outlets
-    p.turn_on()
-    p.turn_off()
+    p.sync.turn_on()
+    p.sync.turn_off()
+
+    # individual outlets are accessible through plugs variable
+    for plug in p.plugs:
+        print(f"{p}: {p.sync.is_on()}")
 
     # change state of a single outlet
-    p.turn_on(index=1)
-
-    # query and print current state of all outlets
-    print(p.get_state())
+    p.plugs[0].sync.turn_on()
 
     Errors reported by the device are raised as SmartDeviceExceptions,
     and should be handled by the user of the library.
@@ -41,362 +43,133 @@ class SmartStrip(SmartPlug):
         host: str,
         protocol: TPLinkSmartHomeProtocol = None,
         cache_ttl: int = 3,
-        *,
-        ioloop=None
+        ioloop=None,
     ) -> None:
-        SmartPlug.__init__(
-            self, host=host, protocol=protocol, cache_ttl=cache_ttl, ioloop=ioloop
-        )
+        SmartPlug.__init__(self, host=host, protocol=protocol, cache_ttl=cache_ttl)
         self.emeter_type = "emeter"
         self._device_type = DeviceType.Strip
-        self.plugs = {}
-
-        sys_info = self.sync.get_sys_info()
-        children = sys_info["children"]
+        self.plugs: List[SmartPlug] = []
+        children = self.sync.get_sys_info()["children"]
         self.num_children = len(children)
         for plug in range(self.num_children):
-            self.plugs[plug] = SmartPlug(
-                host,
-                protocol,
-                context=children[plug]["id"],
-                cache_ttl=cache_ttl,
-                ioloop=ioloop,
+            self.plugs.append(
+                SmartPlug(
+                    host,
+                    protocol,
+                    context=children[plug]["id"],
+                    cache_ttl=cache_ttl,
+                    ioloop=ioloop,
+                )
             )
 
-    def raise_for_index(self, index: int):
-        """
-        Raises SmartStripException if the plug index is out of bounds
-
-        :param index: plug index to check
-        :raises SmartStripException: index out of bounds
-        """
-        if index not in range(self.num_children):
-            raise SmartStripException("plug index of %d " "is out of bounds" % index)
-
-    async def get_state(self, *, index=-1) -> Dict[int, str]:
-        """Retrieve the switch state
-
-        :returns: list with the state of each child plug
-                  STATE_ON
-                  STATE_OFF
-        :rtype: dict
-        """
-
-        def _state_for_bool(_bool):
-            return SmartPlug.STATE_ON if _bool else SmartPlug.STATE_OFF
-
-        is_on = await self.get_is_on(index=index)
-        if isinstance(is_on, bool):
-            return _state_for_bool(is_on)
-
-        return {k: _state_for_bool(v) for k, v in is_on.items()}
-
-    def set_state(self, value: str, *, index: int = -1):
-        """Sets the state of a plug on the strip
-
-        :param value: one of
-                    STATE_ON
-                    STATE_OFF
-        :param index: plug index (-1 for all)
-        :raises ValueError: on invalid state
-        :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
-        """
-        if index < 0:
-            self.state = value
-        else:
-            self.raise_for_index(index)
-            self.plugs[index].state = value
-
     async def is_on(self) -> bool:
-        """Return if any of the outlets are on"""
-        states = await self.get_state()
-        return any(state == "ON" for state in states.values())
+        """Return if any of the outlets are on."""
+        for plug in self.plugs:
+            is_on = await plug.is_on()
+            if is_on:
+                return True
+        return False
 
-    async def get_is_on(self, *, index: int = -1) -> Any:
-        """
-        Returns whether device is on.
+    async def turn_on(self):
+        """Turn the strip on.
 
-        :param index: plug index (-1 for all)
-        :return: True if device is on, False otherwise, Dict without index
-        :rtype: bool if index is provided
-                Dict[int, bool] if no index provided
-        :raises SmartStripException: index out of bounds
-        """
-        sys_info = await self.get_sys_info()
-        children = sys_info["children"]
-        if index < 0:
-            is_on = {}
-            for plug in range(self.num_children):
-                is_on[plug] = bool(children[plug]["state"])
-            return is_on
-        else:
-            self.raise_for_index(index)
-            return bool(children[index]["state"])
-
-    async def get_is_off(self, *, index: int = -1) -> Any:
-        is_on = await self.get_is_on(index=index)
-        if isinstance(is_on, bool):
-            return not is_on
-        else:
-            return {k: not v for k, v in is_on}
-
-    async def turn_on(self, *, index: int = -1):
-        """
-        Turns outlets on
-
-        :param index: plug index (-1 for all)
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if index < 0:
-            await self._query_helper("system", "set_relay_state", {"state": 1})
-        else:
-            self.raise_for_index(index)
-            await self.plugs[index].turn_on()
+        await self._query_helper("system", "set_relay_state", {"state": 1})
 
-    async def turn_off(self, *, index: int = -1):
-        """
-        Turns outlets off
+    async def turn_off(self):
+        """Turn the strip off.
 
-        :param index: plug index (-1 for all)
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if index < 0:
-            await self._query_helper("system", "set_relay_state", {"state": 0})
-        else:
-            self.raise_for_index(index)
-            await self.plugs[index].turn_off()
+        await self._query_helper("system", "set_relay_state", {"state": 0})
 
-    async def get_max_on_since(self) -> datetime:
-        """Returns the maximum on-time of all outlets."""
-        on_since = await self.get_on_since(index=-1)
-        return max(v for v in on_since.values())
+    async def get_on_since(self) -> datetime.datetime:
+        """Return the maximum on-time of all outlets."""
+        return max([await plug.get_on_since() for plug in self.plugs])
 
-    async def get_on_since(self, *, index: Optional[int] = None) -> Any:
-        """
-        Returns pretty-printed on-time
-
-        :param index: plug index (-1 for all)
-        :return: datetime for on since
-        :rtype: datetime with index
-                Dict[int, str] without index
-        :raises SmartStripException: index out of bounds
-        """
-        if index is None:
-            return await self.get_max_on_since()
-
-        if index < 0:
-            on_since = {}
-            sys_info = await self.get_sys_info()
-            children = sys_info["children"]
-
-            for plug in range(self.num_children):
-                child_ontime = children[plug]["on_time"]
-                on_since[plug] = datetime.datetime.now() - datetime.timedelta(
-                    seconds=child_ontime
-                )
-            return on_since
-        else:
-            self.raise_for_index(index)
-            return await self.plugs[index].get_on_since()
-
-    async def get_state_information(self) -> Dict[str, Any]:
-        """
-        Returns strip-specific state information.
+    async def state_information(self) -> Dict[str, Any]:
+        """Return strip-specific state information.
 
         :return: Strip information dict, keys in user-presentable form.
         :rtype: dict
         """
-        state = {"LED state": await self.get_led()}  # XXX: from where?
-        is_on = await self.get_is_on()
-        on_since = await self.get_on_since(index=-1)
-        for plug_index in range(self.num_children):
-            plug_number = plug_index + 1
-            if is_on[plug_index]:
-                state["Plug %d on since" % plug_number] = on_since[plug_index]
+        state: Dict[str, Any] = {"LED state": self.led}
+        for plug in self.plugs:
+            if await plug.is_on():
+                state["Plug %s on since" % str(plug)] = await plug.get_on_since()
 
         return state
 
-    async def get_emeter_realtime(self, *, index: int = -1) -> Optional[Any]:
-        """
-        Retrieve current energy readings from device
+    async def current_consumption(self) -> float:
+        """Get the current power consumption in watts.
 
-        :param index: plug index (-1 for all)
-        :returns: list of current readings or None
-        :rtype: Dict, Dict[int, Dict], None
-                Dict if index is provided
-                Dict[int, Dict] if no index provided
-                None if device has no energy meter or error occurred
+        :return: the current power consumption in watts.
+        :rtype: float
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if not await self.get_has_emeter():  # pragma: no cover
-            raise SmartStripException("Device has no emeter")
+        consumption = sum([await plug.current_consumption() for plug in self.plugs])
 
-        if index < 0:
-            emeter_status = {}
-            for plug in range(self.num_children):
-                emeter_status[plug] = await self.plugs[plug].get_emeter_realtime()
-            return emeter_status
-        else:
-            self.raise_for_index(index)
-            return await self.plugs[index].get_emeter_realtime()
+        return consumption
 
-    async def current_consumption(self, *, index: int = -1) -> Optional[Any]:
-        """
-        Get the current power consumption in Watts.
+    async def icon(self) -> Dict:
+        """Icon for the device.
 
-        :param index: plug index (-1 for all)
-        :return: the current power consumption in Watts.
-                 None if device has no energy meter.
-        :rtype: Dict, Dict[int, Dict], None
-                Dict if index is provided
-                Dict[int, Dict] if no index provided
-                None if device has no energy meter or error occurred
-        :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
-        """
-        if not await self.get_has_emeter():  # pragma: no cover
-            raise SmartStripException("Device has no emeter")
-
-        if index < 0:
-            consumption = {}
-            emeter_reading = await self.get_emeter_realtime()
-            for plug in range(self.num_children):
-                response = EmeterStatus(emeter_reading[plug])
-                consumption[plug] = response["power"]
-            return consumption
-        else:
-            self.raise_for_index(index)
-            response = EmeterStatus(await self.get_emeter_realtime(index=index))
-            return response["power"]
-
-    async def get_icon(self):
-        """Override for base class icon property, SmartStrip and children do not
-        have icons so we return dummy strings.
+        Overriden to keep the API, as the SmartStrip and children do not
+        have icons, we just return dummy strings.
         """
         return {"icon": "SMARTSTRIP-DUMMY", "hash": "SMARTSTRIP-DUMMY"}
 
-    async def get_alias(self, *, index: Optional[int] = None) -> Union[str, Dict[int, str]]:
-        """Gets the alias for a plug.
+    async def set_alias(self, alias: str) -> None:
+        """Set the alias for the strip.
 
-        :param index: plug index (-1 for all)
-        :return: the current power consumption in Watts.
-                 None if device has no energy meter.
-        :rtype: str if index is provided
-                Dict[int, str] if no index provided
-        :raises SmartStripException: index out of bounds
-        """
-        if index is None:
-            return await super().get_alias()
-
-        sys_info = await self.get_sys_info()
-        children = sys_info["children"]
-
-        if index < 0:
-            alias = {}
-            for plug in range(self.num_children):
-                alias[plug] = children[plug]["alias"]
-            return alias
-        else:
-            self.raise_for_index(index)
-            return children[index]["alias"]
-
-    async def set_alias(self, alias: str, *, index: Optional[int] = None):
-        """Sets the alias for a plug
-
-        :param index: plug index
         :param alias: new alias
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        # Renaming the whole strip
-        if index is None:
-            return await super().set_alias(alias)
-
-        self.raise_for_index(index)
-        await self.plugs[index].set_alias(alias)
+        return await super().set_alias(alias)
 
     async def get_emeter_daily(
-        self, year: int = None, month: int = None, kwh: bool = True, *, index: int = -1
+        self, year: int = None, month: int = None, kwh: bool = True
     ) -> Dict:
-        """Retrieve daily statistics for a given month
+        """Retrieve daily statistics for a given month.
 
         :param year: year for which to retrieve statistics (default: this year)
         :param month: month for which to retrieve statistics (default: this
                       month)
         :param kwh: return usage in kWh (default: True)
         :return: mapping of day of month to value
-                 None if device has no energy meter or error occurred
         :rtype: dict
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if not await self.get_has_emeter():  # pragma: no cover
-            raise SmartStripException("Device has no emeter")
-
-        emeter_daily = {}
-        if index < 0:
-            for plug in range(self.num_children):
-                emeter_daily = await self.plugs[plug].get_emeter_daily(
-                    year=year, month=month, kwh=kwh
-                )
-            return emeter_daily
-        else:
-            self.raise_for_index(index)
-            return await self.plugs[index].get_emeter_daily(
+        emeter_daily: DefaultDict[int, float] = defaultdict(lambda: 0.0)
+        for plug in self.plugs:
+            plug_emeter_daily = await plug.get_emeter_daily(
                 year=year, month=month, kwh=kwh
             )
+            for day, value in plug_emeter_daily.items():
+                emeter_daily[day] += value
+        return emeter_daily
 
-    async def get_emeter_monthly(
-        self, year: int = None, kwh: bool = True, *, index: int = -1
-    ) -> Dict:
+    async def get_emeter_monthly(self, year: int = None, kwh: bool = True) -> Dict:
         """Retrieve monthly statistics for a given year.
 
         :param year: year for which to retrieve statistics (default: this year)
         :param kwh: return usage in kWh (default: True)
         :return: dict: mapping of month to value
-                 None if device has no energy meter
         :rtype: dict
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if not await self.get_has_emeter():  # pragma: no cover
-            raise SmartStripException("Device has no emeter")
+        emeter_monthly: DefaultDict[int, float] = defaultdict(lambda: 0.0)
+        for plug in self.plugs:
+            plug_emeter_monthly = await plug.get_emeter_monthly(year=year, kwh=kwh)
+            for month, value in plug_emeter_monthly:
+                emeter_monthly[month] += value
+        return emeter_monthly
 
-        emeter_monthly = {}
-        if index < 0:
-            for plug in range(self.num_children):
-                emeter_monthly[plug] = await self.plugs[plug].get_emeter_monthly(
-                    year=year, kwh=kwh
-                )
-            return emeter_monthly
-        else:
-            self.raise_for_index(index)
-            return await self.plugs[index].get_emeter_monthly(year=year, kwh=kwh)
+    async def erase_emeter_stats(self):
+        """Erase energy meter statistics for all plugs.
 
-    async def erase_emeter_stats(self, *, index: int = -1) -> bool:
-        """Erase energy meter statistics
-
-        :param index: plug index (-1 for all)
-        :return: True if statistics were deleted
-                 False if device has no energy meter.
-        :rtype: bool
         :raises SmartDeviceException: on error
-        :raises SmartStripException: index out of bounds
         """
-        if not await self.get_has_emeter():  # pragma: no cover
-            raise SmartStripException("Device has no emeter")
-
-        if index < 0:
-            for plug in range(self.num_children):
-                await self.plugs[plug].erase_emeter_stats()
-        else:
-            self.raise_for_index(index)
-            await self.plugs[index].erase_emeter_stats()
-
-        # As query_helper raises exception in case of failure, we have
-        # succeeded when we are this far.
-        return True
+        for plug in self.plugs:
+            await plug.erase_emeter_stats()
diff --git a/pyHS100/tests/newfakes.py b/pyHS100/tests/newfakes.py
index 7948b9f7..0636b1ec 100644
--- a/pyHS100/tests/newfakes.py
+++ b/pyHS100/tests/newfakes.py
@@ -24,14 +24,14 @@ def check_mode(x):
     if x in ["schedule", "none", "count_down"]:
         return x
 
-    raise Invalid("invalid mode {}".format(x))
+    raise Invalid(f"invalid mode {x}")
 
 
 def lb_dev_state(x):
     if x in ["normal"]:
         return x
 
-    raise Invalid("Invalid dev_state {}".format(x))
+    raise Invalid(f"Invalid dev_state {x}")
 
 
 TZ_SCHEMA = Schema(
@@ -409,9 +409,7 @@ class FakeTransportProtocol(TPLinkSmartHomeProtocol):
             return error(target, cmd, msg="command not found")
 
         params = request[target][cmd]
-        _LOGGER.debug(
-            "Going to execute {}.{} (params: {}).. ".format(target, cmd, params)
-        )
+        _LOGGER.debug(f"Going to execute {target}.{cmd} (params: {params}).. ")
 
         if callable(proto[target][cmd]):
             res = proto[target][cmd](self, params, child_ids)
@@ -424,4 +422,4 @@ class FakeTransportProtocol(TPLinkSmartHomeProtocol):
             _LOGGER.debug("[static] %s.%s: %s", target, cmd, res)
             return success(target, cmd, res)
         else:
-            raise NotImplementedError("target {} cmd {}".format(target, cmd))
+            raise NotImplementedError(f"target {target} cmd {cmd}")
diff --git a/pyHS100/tests/test_fixtures.py b/pyHS100/tests/test_fixtures.py
index 7613bc04..d20fcb00 100644
--- a/pyHS100/tests/test_fixtures.py
+++ b/pyHS100/tests/test_fixtures.py
@@ -4,7 +4,7 @@ from unittest.mock import patch
 
 import pytest
 
-from pyHS100 import DeviceType, SmartDeviceException, SmartStripException, SmartStrip
+from pyHS100 import DeviceType, SmartDeviceException, SmartStrip
 
 from .conftest import (
     bulb,
@@ -380,67 +380,44 @@ def test_non_variable_temp(dev):
         dev.sync.set_color_temp(2700)
 
 
-@strip
-def test_children_is_on(dev):
-    is_on = dev.sync.get_is_on()
-    for i in range(dev.num_children):
-        assert is_on[i] == dev.sync.get_is_on(index=i)
-
-
 @strip
 @turn_on
 def test_children_change_state(dev, turn_on):
     handle_turn_on(dev, turn_on)
-    for i in range(dev.num_children):
-        orig_state = dev.sync.get_is_on(index=i)
+    for plug in dev.plugs:
+        orig_state = plug.sync.is_on()
         if orig_state:
-            dev.sync.turn_off(index=i)
-            assert not dev.sync.get_is_on(index=i)
-            assert dev.sync.get_is_off(index=i)
+            plug.turn_off()
+            assert not plug.sync.is_on()
+            assert plug.sync.is_off()
 
-            dev.sync.turn_on(index=i)
-            assert dev.sync.get_is_on(index=i)
-            assert not dev.sync.get_is_off(index=i)
+            plug.sync.turn_on()
+            assert plug.sync.is_on()
+            assert not plug.sync.is_off()
         else:
-            dev.sync.turn_on(index=i)
-            assert dev.sync.get_is_on(index=i)
-            assert not dev.sync.get_is_off(index=i)
-            dev.sync.turn_off(index=i)
-            assert not dev.sync.get_is_on(index=i)
-            assert dev.sync.get_is_off(index=i)
-
-
-@strip
-def test_children_bounds(dev):
-    out_of_bounds = dev.num_children + 100
-
-    with pytest.raises(SmartDeviceException):
-        dev.sync.turn_off(index=out_of_bounds)
-    with pytest.raises(SmartDeviceException):
-        dev.sync.turn_on(index=out_of_bounds)
-    with pytest.raises(SmartDeviceException):
-        dev.sync.get_is_on(index=out_of_bounds)
-    with pytest.raises(SmartDeviceException):
-        dev.sync.get_alias(index=out_of_bounds)
-    with pytest.raises(SmartDeviceException):
-        dev.sync.get_on_since(index=out_of_bounds)
+            plug.sync.turn_on()
+            assert plug.sync.is_on()
+            assert not plug.sync.is_off()
+            plug.sync.turn_off()
+            assert not plug.sync.is_on()
+            assert plug.sync.is_off()
 
 
 @strip
 def test_children_alias(dev):
-    original = dev.sync.get_alias()
     test_alias = "TEST1234"
-    for idx in range(dev.num_children):
-        dev.sync.set_alias(alias=test_alias, index=idx)
-        assert dev.sync.get_alias(index=idx) == test_alias
-        dev.sync.set_alias(alias=original[idx], index=idx)
-        assert dev.sync.get_alias(index=idx) == original[idx]
+    for plug in dev.plugs:
+        original = plug.sync.get_alias()
+        plug.sync.set_alias(alias=test_alias)
+        assert plug.sync.get_alias() == test_alias
+        plug.sync.set_alias(alias=original)
+        assert plug.sync.get_alias() == original
 
 
 @strip
 def test_children_on_since(dev):
-    for idx in range(dev.num_children):
-        assert dev.sync.get_on_since(index=idx)
+    for plug in dev.plugs:
+        assert plug.sync.get_on_since()
 
 
 @pytest.mark.skip("this test will wear out your relays")
@@ -492,80 +469,61 @@ def test_all_binary_states(dev):
 def test_children_get_emeter_realtime(dev):
     assert dev.sync.get_has_emeter()
     # test with index
-    for plug_index in range(dev.num_children):
-        emeter = dev.sync.get_emeter_realtime(index=plug_index)
+    for plug in dev.plugs:
+        emeter = plug.sync.get_emeter_realtime()
         CURRENT_CONSUMPTION_SCHEMA(emeter)
 
     # test without index
-    for index, emeter in dev.sync.get_emeter_realtime().items():
-        CURRENT_CONSUMPTION_SCHEMA(emeter)
+    # TODO test that sum matches the sum of individiaul plugs.
 
-    # out of bounds
-    with pytest.raises(SmartStripException):
-        dev.sync.get_emeter_realtime(index=dev.num_children + 100)
+    # for index, emeter in dev.sync.get_emeter_realtime().items():
+    #    CURRENT_CONSUMPTION_SCHEMA(emeter)
 
 
 @strip
 def test_children_get_emeter_daily(dev):
     assert dev.sync.get_has_emeter()
-    # test with index
-    for plug_index in range(dev.num_children):
-        emeter = dev.sync.get_emeter_daily(year=1900, month=1, index=plug_index)
+    # test individual emeters
+    for plug in dev.plugs:
+        emeter = plug.sync.get_emeter_daily(year=1900, month=1)
         assert emeter == {}
 
-        emeter = dev.sync.get_emeter_daily(index=plug_index)
+        emeter = plug.sync.get_emeter_daily()
         assert len(emeter) > 0
 
         k, v = emeter.popitem()
         assert isinstance(k, int)
         assert isinstance(v, float)
 
-    # test without index
-    all_emeters = dev.sync.get_emeter_daily(year=1900, month=1)
-    for plug_index, emeter in all_emeters.items():
-        assert emeter == {}
+    # test sum of emeters
+    all_emeter = dev.sync.get_emeter_daily(year=1900, month=1)
 
-        emeter = dev.sync.get_emeter_daily()
-
-        k, v = emeter.popitem()
-        assert isinstance(k, int)
-        assert isinstance(v, float)
-
-    # out of bounds
-    with pytest.raises(SmartStripException):
-        dev.sync.get_emeter_daily(year=1900, month=1, index=dev.num_children + 100)
+    k, v = all_emeter.popitem()
+    assert isinstance(k, int)
+    assert isinstance(v, float)
 
 
 @strip
 def test_children_get_emeter_monthly(dev):
     assert dev.sync.get_has_emeter()
-    # test with index
-    for plug_index in range(dev.num_children):
-        emeter = dev.sync.get_emeter_monthly(year=1900, index=plug_index)
+    # test individual emeters
+    for plug in dev.plugs:
+        emeter = plug.sync.get_emeter_monthly(year=1900)
         assert emeter == {}
 
-        emeter = dev.sync.get_emeter_monthly(index=plug_index)
+        emeter = plug.sync.get_emeter_monthly()
         assert len(emeter) > 0
 
         k, v = emeter.popitem()
         assert isinstance(k, int)
         assert isinstance(v, float)
 
-    # test without index
-    all_emeters = dev.sync.get_emeter_monthly(year=1900)
-    for index, emeter in all_emeters.items():
-        assert emeter == {}
+    # test sum of emeters
+    all_emeter = dev.sync.get_emeter_monthly(year=1900)
 
-        emeter = dev.sync.get_emeter_daily()
-        assert len(emeter) > 0
-
-        k, v = emeter.popitem()
-        assert isinstance(k, int)
-        assert isinstance(v, float)
-
-    # out of bounds
-    with pytest.raises(SmartStripException):
-        dev.sync.get_emeter_monthly(year=1900, index=dev.num_children + 100)
+    k, v = all_emeter.popitem()
+    assert isinstance(k, int)
+    assert isinstance(v, float)
 
 
 # def test_cache(dev):
diff --git a/pyHS100/version.py b/pyHS100/version.py
new file mode 100644
index 00000000..9bc7a520
--- /dev/null
+++ b/pyHS100/version.py
@@ -0,0 +1,2 @@
+# flake8: noqa
+__version__ = "0.4.0.dev0"
diff --git a/requirements.txt b/requirements.txt
index 4983b2e1..1ccbaada 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,3 +1,4 @@
 click
 click-datetime
 pre-commit
+voluptuous
diff --git a/setup.py b/setup.py
index a5da4333..0f4fb94e 100644
--- a/setup.py
+++ b/setup.py
@@ -1,9 +1,12 @@
 from setuptools import setup
 
+with open("pyHS100/version.py") as f:
+    exec(f.read())
+
 setup(
     name="pyHS100",
-    version="0.3.5",
-    description="Interface for TPLink HS1xx plugs, HS2xx wall switches & LB1xx bulbs",
+    version=__version__,  # type: ignore # noqa: F821
+    description="Python interface for TPLink KASA-enabled smart home devices",
     url="https://github.com/GadgetReactor/pyHS100",
     author="Sean Seah (GadgetReactor)",
     author_email="sean@gadgetreactor.com",
@@ -11,6 +14,6 @@ setup(
     packages=["pyHS100"],
     install_requires=["click", "deprecation"],
     python_requires=">=3.6",
-    entry_points={"console_scripts": ["pyhs100=pyHS100.cli:cli",],},
+    entry_points={"console_scripts": ["pyhs100=pyHS100.cli:cli"]},
     zip_safe=False,
 )
diff --git a/tox.ini b/tox.ini
index bcbc19d1..6e010f45 100644
--- a/tox.ini
+++ b/tox.ini
@@ -1,5 +1,5 @@
 [tox]
-envlist=py35,py36,py37,flake8
+envlist=py35,py36,py37,flake8,linting,typing
 skip_missing_interpreters = True
 
 [tox:travis]
@@ -20,16 +20,31 @@ commands=
     py.test --cov --cov-config=tox.ini pyHS100
 
 [testenv:flake8]
-deps=flake8
+deps=
+  flake8
+  flake8-docstrings
 commands=flake8 pyHS100
-max-line-length=88
 
 [testenv:typing]
+skip_install=true
 deps=mypy
-commands=mypy --silent-imports pyHS100
+commands=mypy --ignore-missing-imports pyHS100
 
 [flake8]
-exclude = .git,.tox,__pycache__,pyHS100/tests/fakes.py
+exclude = .git,.tox,__pycache__,pyHS100/tests/newfakes.py,pyHS100/tests/test_fixtures.py
+max-line-length = 88
+per-file-ignores =
+  pyHS100/tests/*.py:D100,D101,D102,D103,D104
+  setup.py:D100
+ignore = D105, D107, E203, E501, W503
+#ignore = E203, E266, E501, W503, F403, F401
+#max-complexity = 18
+#select = B,C,E,F,W,T4,B9
+
+[testenv:lint]
+deps = pre-commit
+skip_install = true
+commands = pre-commit run --all-files
 
 [coverage:run]
 source = pyHS100
@@ -43,3 +58,12 @@ exclude_lines =
   # ignore abstract methods
   raise NotImplementedError
   def __repr__
+
+[isort]
+multi_line_output=3
+include_trailing_comma=True
+force_grid_wrap=0
+use_parentheses=True
+line_length=88
+known_first_party=pyHS100
+known_third_party=click,deprecation,pytest,setuptools,voluptuous