diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ffe98ea..4ad0a49 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -20,12 +20,15 @@ jobs:
           python-version: ${{ matrix.python-version }}
 
       - name: Install dependencies
-        run: pip install pytest pytest-cov python-coveralls coverage flake8
+        run: pip install pytest pytest-cov python-coveralls coverage flake8 pydocstyle
 
       - name: Lint with flake8
         run: |
           flake8 pyfritzhome --count --show-source --statistics
 
+      - name: Run pydocstyle for analysising with Python docstring conventions.
+        run: pydocstyle
+
       - name: Setup
         run: python setup.py install
 
diff --git a/pyfritzhome/__init__.py b/pyfritzhome/__init__.py
index 08a7be1..d72d20c 100644
--- a/pyfritzhome/__init__.py
+++ b/pyfritzhome/__init__.py
@@ -1,3 +1,5 @@
+"""Init file for pyfritzhome."""
+
 from .errors import InvalidError, LoginError
 from .fritzhome import Fritzhome
 from .fritzhomedevice import FritzhomeDevice
diff --git a/pyfritzhome/cli.py b/pyfritzhome/cli.py
index 553216a..59628ee 100644
--- a/pyfritzhome/cli.py
+++ b/pyfritzhome/cli.py
@@ -1,4 +1,5 @@
 #!/usr/bin/env python
+"""A simple CLI tool."""
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
@@ -165,7 +166,7 @@ def template_apply(fritz, args):
 
 
 def main(args=None):
-    """The main function."""
+    """Enter the main function of the CLI tool."""
     parser = argparse.ArgumentParser(description="Fritz!Box Smarthome CLI tool.")
     parser.add_argument(
         "-v", action="store_true", dest="verbose", help="be more verbose"
diff --git a/pyfritzhome/devicetypes/__init__.py b/pyfritzhome/devicetypes/__init__.py
index 8a980d8..d698551 100644
--- a/pyfritzhome/devicetypes/__init__.py
+++ b/pyfritzhome/devicetypes/__init__.py
@@ -1,3 +1,5 @@
+"""Init file for the device types."""
+
 from .fritzhomedevicealarm import FritzhomeDeviceAlarm
 from .fritzhomedevicebutton import FritzhomeDeviceButton
 from .fritzhomedevicepowermeter import FritzhomeDevicePowermeter
diff --git a/pyfritzhome/devicetypes/fritzhomedevicealarm.py b/pyfritzhome/devicetypes/fritzhomedevicealarm.py
index f8884f3..dccca14 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicealarm.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicealarm.py
@@ -1,3 +1,4 @@
+"""The alarm device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomedevicebase.py b/pyfritzhome/devicetypes/fritzhomedevicebase.py
index e5cff34..5cd0f43 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicebase.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicebase.py
@@ -1,3 +1,4 @@
+"""The base device class."""
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
diff --git a/pyfritzhome/devicetypes/fritzhomedeviceblind.py b/pyfritzhome/devicetypes/fritzhomedeviceblind.py
index d7e27d4..26c6b4a 100644
--- a/pyfritzhome/devicetypes/fritzhomedeviceblind.py
+++ b/pyfritzhome/devicetypes/fritzhomedeviceblind.py
@@ -1,3 +1,4 @@
+"""The blind device class."""
 # -*- coding: utf-8 -*-
 
 import logging
@@ -53,22 +54,29 @@ def _update_blind_from_node(self, node):
             pass
 
     def get_level(self):
+        """Get the blind level."""
         return self.level
 
     def get_level_percentage(self):
+        """Get the blind level in percentage."""
         return self.levelpercentage
 
     def set_level(self, level):
+        """Set the blind level."""
         self._fritz.set_level(self.ain, level)
 
     def set_level_percentage(self, levelpercentage):
+        """Set the blind level in percentage."""
         self._fritz.set_level_percentage(self.ain, levelpercentage)
 
     def set_blind_open(self):
+        """Open the blind."""
         self._fritz.set_blind_open(self.ain)
 
     def set_blind_close(self):
+        """Close the blind."""
         self._fritz.set_blind_close(self.ain)
 
     def set_blind_stop(self):
+        """Stop the blind."""
         self._fritz.set_blind_stop(self.ain)
diff --git a/pyfritzhome/devicetypes/fritzhomedevicebutton.py b/pyfritzhome/devicetypes/fritzhomedevicebutton.py
index 71b8630..4c4d0f4 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicebutton.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicebutton.py
@@ -1,3 +1,4 @@
+"""The button device class."""
 # -*- coding: utf-8 -*-
 
 import logging
@@ -41,6 +42,7 @@ def _update_button_from_node(self, node):
             pass
 
     def get_button_by_ain(self, ain):
+        """Return the button by AIN."""
         return self.buttons[ain]
 
 
@@ -53,6 +55,7 @@ class FritzhomeButton(object):
     last_pressed = None
 
     def __init__(self, node=None):
+        """Create a button object."""
         if node is not None:
             self._update_from_node(node)
 
@@ -67,7 +70,9 @@ def _update_from_node(self, node):
             pass
 
     def get_node_value(self, elem, node):
+        """Get the node value."""
         return elem.findtext(node)
 
     def get_node_value_as_int(self, elem, node) -> int:
+        """Get the node value as integer."""
         return int(self.get_node_value(elem, node))
diff --git a/pyfritzhome/devicetypes/fritzhomedevicefeatures.py b/pyfritzhome/devicetypes/fritzhomedevicefeatures.py
index b7e0398..8b0a0f4 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicefeatures.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicefeatures.py
@@ -1,7 +1,10 @@
+"""The feature list class."""
 from enum import IntFlag
 
 
 class FritzhomeDeviceFeatures(IntFlag):
+    """The feature list class."""
+
     ALARM = 0x0010
     UNKNOWN = 0x0020
     BUTTON = 0x0020
diff --git a/pyfritzhome/devicetypes/fritzhomedevicelightbulb.py b/pyfritzhome/devicetypes/fritzhomedevicelightbulb.py
index 742bedb..8bccbd9 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicelightbulb.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicelightbulb.py
@@ -1,3 +1,4 @@
+"""The light bulb device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomedevicepowermeter.py b/pyfritzhome/devicetypes/fritzhomedevicepowermeter.py
index b6ec52d..fbee6d4 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicepowermeter.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicepowermeter.py
@@ -1,3 +1,4 @@
+"""The powermeter device class."""
 # -*- coding: utf-8 -*-
 
 import logging
@@ -49,7 +50,7 @@ def _update_powermeter_from_node(self, node):
             self.current = None
 
     def get_switch_power(self):
-        """The switch state."""
+        """Get the switch state."""
         return self._fritz.get_switch_power(self.ain)
 
     def get_switch_energy(self):
diff --git a/pyfritzhome/devicetypes/fritzhomedevicerepeater.py b/pyfritzhome/devicetypes/fritzhomedevicerepeater.py
index a57cdca..6642a71 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicerepeater.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicerepeater.py
@@ -1,3 +1,4 @@
+"""The repeater device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomedeviceswitch.py b/pyfritzhome/devicetypes/fritzhomedeviceswitch.py
index 80a3603..66c4165 100644
--- a/pyfritzhome/devicetypes/fritzhomedeviceswitch.py
+++ b/pyfritzhome/devicetypes/fritzhomedeviceswitch.py
@@ -1,3 +1,4 @@
+"""The switch device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomedevicetemperature.py b/pyfritzhome/devicetypes/fritzhomedevicetemperature.py
index b0e7d40..5b241a9 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicetemperature.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicetemperature.py
@@ -1,3 +1,4 @@
+"""The temperature device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomedevicethermostat.py b/pyfritzhome/devicetypes/fritzhomedevicethermostat.py
index 5309a36..a8c8864 100644
--- a/pyfritzhome/devicetypes/fritzhomedevicethermostat.py
+++ b/pyfritzhome/devicetypes/fritzhomedevicethermostat.py
@@ -1,3 +1,4 @@
+"""The thermostat device class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/devicetypes/fritzhomeentitybase.py b/pyfritzhome/devicetypes/fritzhomeentitybase.py
index d236cf6..274b5d1 100644
--- a/pyfritzhome/devicetypes/fritzhomeentitybase.py
+++ b/pyfritzhome/devicetypes/fritzhomeentitybase.py
@@ -1,3 +1,4 @@
+"""The entity base class."""
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
@@ -19,6 +20,7 @@ class FritzhomeEntityBase(ABC):
     _functionsbitmask = None
 
     def __init__(self, fritz=None, node=None):
+        """Create an entity base object."""
         if fritz is not None:
             self._fritz = fritz
         if node is not None:
@@ -44,13 +46,17 @@ def _update_from_node(self, node):
     # XML Helpers
 
     def get_node_value(self, elem, node):
+        """Get the node value."""
         return elem.findtext(node)
 
     def get_node_value_as_int(self, elem, node) -> int:
+        """Get the node value as integer."""
         return int(self.get_node_value(elem, node))
 
     def get_node_value_as_int_as_bool(self, elem, node) -> bool:
+        """Get the node value as boolean."""
         return bool(self.get_node_value_as_int(elem, node))
 
     def get_temp_from_node(self, elem, node):
+        """Get the node temp value as float."""
         return float(self.get_node_value(elem, node)) / 2
diff --git a/pyfritzhome/devicetypes/fritzhometemplate.py b/pyfritzhome/devicetypes/fritzhometemplate.py
index 362860f..88dff3d 100644
--- a/pyfritzhome/devicetypes/fritzhometemplate.py
+++ b/pyfritzhome/devicetypes/fritzhometemplate.py
@@ -1,3 +1,4 @@
+"""The template class."""
 # -*- coding: utf-8 -*-
 
 import logging
diff --git a/pyfritzhome/errors.py b/pyfritzhome/errors.py
index e0a0ece..6633ea8 100644
--- a/pyfritzhome/errors.py
+++ b/pyfritzhome/errors.py
@@ -1,10 +1,19 @@
+"""Project specific exceptions."""
+
+
 class LoginError(Exception):
+    """The LoginError Exception."""
+
     def __init__(self, user):
+        """Initialize the an loginError."""
         self.user = user
 
     def __str__(self):
+        """Return the error."""
         return 'login for user="{}" failed'.format(self.user)
 
 
 class InvalidError(Exception):
+    """The InvalidError Exception."""
+
     pass
diff --git a/pyfritzhome/fritzhome.py b/pyfritzhome/fritzhome.py
index e90d43c..4192ce7 100644
--- a/pyfritzhome/fritzhome.py
+++ b/pyfritzhome/fritzhome.py
@@ -1,3 +1,4 @@
+"""The main fritzhome handling class."""
 # -*- coding: utf-8 -*-
 
 from __future__ import print_function
@@ -26,6 +27,7 @@ class Fritzhome(object):
     _templates: Dict[str, FritzhomeTemplate] = None
 
     def __init__(self, host, user, password, ssl_verify=True):
+        """Create a fritzhome object."""
         self._host = host
         self._user = user
         self._password = password
@@ -125,6 +127,7 @@ def get_prefixed_host(self):
             return "http://" + host
 
     def update_devices(self):
+        """Update the device."""
         _LOGGER.info("Updating Devices ...")
         if self._devices is None:
             self._devices = {}
@@ -338,18 +341,21 @@ def _set_blind_state(self, ain, state):
         self._aha_request("setblind", ain=ain, param={"target": state})
 
     def set_blind_open(self, ain):
+        """Set the blind state to open."""
         self._set_blind_state(ain, "open")
 
     def set_blind_close(self, ain):
+        """Set the blind state to close."""
         self._set_blind_state(ain, "close")
 
     def set_blind_stop(self, ain):
+        """Set the blind state to stop."""
         self._set_blind_state(ain, "stop")
 
     # Template-related commands
 
     def has_templates(self):
-        """Check if the Fritz!Box supports smarthome templates"""
+        """Check if the Fritz!Box supports smarthome templates."""
         plain = self._aha_request("gettemplatelistinfos")
         try:
             ElementTree.fromstring(plain)
@@ -358,6 +364,7 @@ def has_templates(self):
         return True
 
     def update_templates(self):
+        """Update the template."""
         _LOGGER.info("Updating Templates ...")
         if self._templates is None:
             self._templates = {}
@@ -393,5 +400,5 @@ def get_template_by_ain(self, ain):
         return self.get_templates_as_dict()[ain]
 
     def apply_template(self, ain):
-        """Applies a template."""
+        """Appliy a template."""
         self._aha_request("applytemplate", ain=ain)
diff --git a/pyfritzhome/fritzhomedevice.py b/pyfritzhome/fritzhomedevice.py
index 28ec9c8..e4d6889 100644
--- a/pyfritzhome/fritzhomedevice.py
+++ b/pyfritzhome/fritzhomedevice.py
@@ -1,3 +1,5 @@
+"""Toplevel device for pyfritzhome."""
+
 # -*- coding: utf-8 -*-
 
 from .devicetypes import FritzhomeTemplate  # noqa: F401
@@ -28,6 +30,7 @@ class FritzhomeDevice(
     """The Fritzhome Device class."""
 
     def __init__(self, fritz=None, node=None):
+        """Create a device object."""
         super().__init__(fritz, node)
 
     def _update_from_node(self, node):
diff --git a/setup.cfg b/setup.cfg
index 75fffb5..5d223f0 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -60,4 +60,9 @@ omit =
 	*/doc/*
 
 [pep257]
-ignore = D100,D101,D102,D103,D104,D105,D203,D204
+ignore = D203
+match-dir = pyfritzhome/*
+
+[pydocstyle]
+ignore = D203,D213
+match-dir = pyfritzhome/*
diff --git a/setup.py b/setup.py
index b694e6e..671c894 100644
--- a/setup.py
+++ b/setup.py
@@ -1,3 +1,5 @@
+"""The setup of the project."""
+
 # -*- coding: utf-8 -*-
 
 from setuptools import setup
diff --git a/tests/__init__.py b/tests/__init__.py
index e69de29..aaa5d9f 100644
--- a/tests/__init__.py
+++ b/tests/__init__.py
@@ -0,0 +1 @@
+"""Init file for the tests."""