diff --git a/wg_meshconf/__init__.py b/wg_meshconf/__init__.py
index f645057..ce7dc30 100644
--- a/wg_meshconf/__init__.py
+++ b/wg_meshconf/__init__.py
@@ -1 +1 @@
-from .wg_meshconf import main
\ No newline at end of file
+from .wg_meshconf import main
diff --git a/wg_meshconf/database_manager.py b/wg_meshconf/database_manager.py
index b80fcee..c048c40 100755
--- a/wg_meshconf/database_manager.py
+++ b/wg_meshconf/database_manager.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 """
 Name: Database Manager
-Dev: K4YT3X
+Creator: K4YT3X
 Date Created: July 19, 2020
 Last Modified: November 15, 2020
 """
@@ -63,7 +63,7 @@ class DatabaseManager:
         self.wireguard = WireGuard()
 
     def read_database(self):
-        """ read database file into dict
+        """read database file into dict
 
         Returns:
             dict: content of database file in dict format
@@ -75,7 +75,7 @@ class DatabaseManager:
             return json.load(database_file)
 
     def write_database(self, data: dict):
-        """ dump data into database file
+        """dump data into database file
 
         Args:
             data (dict): content of database
diff --git a/wg_meshconf/wg_meshconf.py b/wg_meshconf/wg_meshconf.py
index de669c9..0fa4100 100755
--- a/wg_meshconf/wg_meshconf.py
+++ b/wg_meshconf/wg_meshconf.py
@@ -2,13 +2,13 @@
 # -*- coding: utf-8 -*-
 """
 Name: wg-meshconf
-Dev: K4YT3X
+Creator: K4YT3X
 Date Created: July 19, 2020
-Last Modified: November 15, 2020
+Last Modified: January 12, 2021
 
 Licensed under the GNU General Public License Version 3 (GNU GPL v3),
     available at: https://www.gnu.org/licenses/gpl-3.0.txt
-(C) 2018-2020 K4YT3X
+(C) 2018-2021 K4YT3X
 """
 
 # built-in imports
@@ -21,8 +21,7 @@ from .database_manager import DatabaseManager
 
 
 def parse_arguments():
-    """ parse CLI arguments
-    """
+    """parse CLI arguments"""
     parser = argparse.ArgumentParser(
         prog="wg-meshconf", formatter_class=argparse.ArgumentDefaultsHelpFormatter
     )
@@ -45,7 +44,9 @@ def parse_arguments():
         "--address", help="address of the server", action="append", required=True
     )
     addpeer.add_argument("--endpoint", help="peer's public endpoint address")
-    addpeer.add_argument("--allowedips", help="additional allowed IP addresses", action="append")
+    addpeer.add_argument(
+        "--allowedips", help="additional allowed IP addresses", action="append"
+    )
     addpeer.add_argument("--privatekey", help="private key of server interface")
     addpeer.add_argument("--listenport", help="port to listen on", default=51820)
     addpeer.add_argument("--fwmark", help="fwmark for outgoing packets")
@@ -68,7 +69,9 @@ def parse_arguments():
     updatepeer.add_argument("name", help="Name used to identify this node")
     updatepeer.add_argument("--address", help="address of the server", action="append")
     updatepeer.add_argument("--endpoint", help="peer's public endpoint address")
-    updatepeer.add_argument("--allowedips", help="additional allowed IP addresses", action="append")
+    updatepeer.add_argument(
+        "--allowedips", help="additional allowed IP addresses", action="append"
+    )
     updatepeer.add_argument("--privatekey", help="private key of server interface")
     updatepeer.add_argument("--listenport", help="port to listen on")
     updatepeer.add_argument("--fwmark", help="fwmark for outgoing packets")
@@ -93,7 +96,9 @@ def parse_arguments():
     # showpeers prints a table of all peers and their configurations
     showpeers = subparsers.add_parser("showpeers")
     showpeers.add_argument(
-        "name", help="Name of the peer to query", nargs="?",
+        "name",
+        help="Name of the peer to query",
+        nargs="?",
     )
     showpeers.add_argument(
         "--style",
diff --git a/wg_meshconf/wireguard.py b/wg_meshconf/wireguard.py
index 922dfd8..46c204c 100755
--- a/wg_meshconf/wireguard.py
+++ b/wg_meshconf/wireguard.py
@@ -2,7 +2,7 @@
 # -*- coding: utf-8 -*-
 """
 Name: WireGuard Python Bindings
-Dev: K4YT3X
+Creator: K4YT3X
 Date Created: October 11, 2019
 Last Modified: July 19, 2020
 """
@@ -13,7 +13,7 @@ import subprocess
 
 
 class WireGuard:
-    """ WireGuard utility controller
+    """WireGuard utility controller
 
     This class handles the interactions with the wg binary,
     including:
@@ -35,7 +35,7 @@ class WireGuard:
         self.wg_binary = wg_binary
 
     def genkey(self):
-        """ generate WG private key
+        """generate WG private key
 
         Generate a new wireguard private key via
         wg command.
@@ -51,7 +51,7 @@ class WireGuard:
         )
 
     def pubkey(self, privkey: str) -> str:
-        """  convert WG private key into public key
+        """convert WG private key into public key
 
         Uses wg pubkey command to convert the wg private
         key into a public key.
@@ -74,8 +74,7 @@ class WireGuard:
         )
 
     def genpsk(self):
-        """ generate a random base64 PSK
-        """
+        """generate a random base64 PSK"""
         return (
             subprocess.run(
                 [str(self.wg_binary.absolute()), "genpsk"],