diff --git a/scripts/scw_inventory.py b/scripts/scw_inventory.py
index 7ee9fd8..0bf1814 100755
--- a/scripts/scw_inventory.py
+++ b/scripts/scw_inventory.py
@@ -1,23 +1,27 @@
 #!/usr/bin/env python3
 # -*- coding: utf-8 -*-
-'''
+"""
 Generate an inventory of servers from scaleway which is
 suitable for use as an ansible dynamic inventory
 Right now, only the group 'cci-customer' is exported
-'''
+"""
 
-import argparse
-import os
-import json
 import configparser
+import json
+import os
+from typing import Dict, Any
 
 from scaleway.apis import ComputeAPI
 
+
 class SCWInventory(object):
-    '''
+    """
     The inventory class which calls out to scaleway and digests
-    the returned data, making it usable by ansible as an inventory
-    '''
+    The returned data, making it usable by ansible as an inventory
+    """
+
+    response: Dict[str, Any]
+    
     def __init__(self):
         self.inventory = None
         self.auth_token = None
@@ -30,9 +34,9 @@ class SCWInventory(object):
         }
 
     def parse_config(self, creds_file='scw.ini'):
-        '''
+        """
         Parse the ini file to get the auth token
-        '''
+        """
         config = configparser.ConfigParser()
         config.read(creds_file)
         with open(os.path.expanduser(config['credentials']['token_file']), 'r') as content_file:
@@ -40,16 +44,17 @@ class SCWInventory(object):
         self.environment = config['config']['environment']
 
     def get_servers(self):
-        '''
-        query scaleway api and pull down a list of servers
-        '''
+        """
+        Query scaleway api and pull down a list of servers
+        """
         self.parse_config()
         api_par1 = ComputeAPI(auth_token=self.auth_token, region='par1')
         api_ams1 = ComputeAPI(auth_token=self.auth_token, region='ams1')
         result_par1 = api_par1.query().servers.get()
         result_ams1 = api_ams1.query().servers.get()
         self.inventory = [
-            [i['name'], i['public_ip'], i['tags'], i['private_ip']] for i in result_par1['servers'] + result_ams1['servers']
+            [i['name'], i['public_ip'], i['tags'], i['private_ip']] for i in
+            result_par1['servers'] + result_ams1['servers']
         ]
         for host, ip_info, tags, private_ip in self.inventory:
             host_vars = {
@@ -72,30 +77,33 @@ class SCWInventory(object):
 
         for host, variables in self.response['_meta']['hostvars'].items():
             if host != 'proxy1':
-                variables['ansible_ssh_common_args'] = '-o ProxyCommand="ssh -W %h:%p -q root@' + self.response['_meta']['hostvars']['proxy1']['public_ip'] + '"'
+                variables['ansible_ssh_common_args'] = '-o ProxyCommand="ssh -W %h:%p -q root@' + \
+                                                       self.response['_meta']['hostvars']['proxy1']['public_ip'] + '"'
 
     def _add_to_response(self, group, hostname):
-        '''
-        add a host to a group within the response
-        '''
+        """
+        Add a host to a group within the response
+        """
         if group not in self.response:
             self.response[group] = list()
         if group in self.response:
             self.response[group].append(hostname)
 
     def print_inventory(self):
-        '''
-        simply display the collected inventory
-        '''
+        """
+        Simply display the collected inventory
+        """
         print(json.dumps(self.response))
 
+
 def main():
-    '''
-    run the program starting here
-    '''
+    """
+    Run the program starting here
+    """
     inventory = SCWInventory()
     inventory.get_servers()
     inventory.print_inventory()
 
+
 if __name__ == '__main__':
     main()