diff --git a/tools/attention_list.py b/tools/attention_list.py
index 40a06eb3..3cc0c32e 100644
--- a/tools/attention_list.py
+++ b/tools/attention_list.py
@@ -27,7 +27,7 @@ class FailedPR:
         self.target_url = target_url
         self.created_at = created_at
         self.updated_at = updated_at
-    
+
     def to_json(self):
         return json.dumps(self.__dict__)
 
@@ -76,7 +76,7 @@ def get_args():
         help='Git hoster to be queried for failed Pull Requests.\n'
              'Default: [github, gitea].'
     )
-    return(parser.parse_args())
+    return parser.parse_args()
 
 def get_gitea_repos(url, headers, gitea_org):
     repositories = []
@@ -84,7 +84,7 @@ def get_gitea_repos(url, headers, gitea_org):
 
     while True:
         try:
-            req_url = (url + 'orgs/' + gitea_org + 
+            req_url = (url + 'orgs/' + gitea_org +
                         '/repos?limit=50&page=' + str(i))
             res = requests.request('GET', url=req_url, headers=headers)
             i+=1
@@ -96,16 +96,16 @@ def get_gitea_repos(url, headers, gitea_org):
                 break
         except Exception as e:
             print("An error has occured: " + str(e))
-            print("The request status is: " + str(res.status_code) + 
+            print("The request status is: " + str(res.status_code) +
                     " | " + str(res.reason))
             break
-    return(repositories)
+    return repositories
 
 def get_gitea_prs(url, headers, gitea_org, repo):
     pullrequests = []
 
     try:
-        req_url = (url + 'repos/' + gitea_org + '/' 
+        req_url = (url + 'repos/' + gitea_org + '/'
                     + repo + '/pulls?state=open')
         res = requests.request('GET', url=req_url, headers=headers)
         if res.json():
@@ -113,15 +113,15 @@ def get_gitea_prs(url, headers, gitea_org, repo):
                 pullrequests.append(pr)
     except Exception as e:
         print("An error has occured: " + str(e))
-        print("The request status is: " + str(res.status_code) + 
+        print("The request status is: " + str(res.status_code) +
                 " | " + str(res.reason))
         exit()
-    return(pullrequests)
+    return pullrequests
 
 def get_failed_gitea_commits(pull, url, gitea_org, repo, headers):
     failed_commits = []
     try:
-        req_url = (url + 'repos/' + gitea_org + '/' + repo['name'] + 
+        req_url = (url + 'repos/' + gitea_org + '/' + repo['name'] +
                     '/commits/' + pull['head']['ref'] + '/statuses?limit=1')
         res_sta = requests.request('GET', url=req_url, headers=headers)
         if res_sta.json():
@@ -138,11 +138,11 @@ def get_failed_gitea_commits(pull, url, gitea_org, repo, headers):
 
     except Exception as e:
         print("An error has occured: " + str(e))
-        print("The request status is: " + str(res_sta.status_code) + 
+        print("The request status is: " + str(res_sta.status_code) +
                 " | " + str(res_sta.reason))
         print(json.dumps(res_sta.json()))
         exit()
-    return(failed_commits)
+    return failed_commits
 
 def get_github_repos(url, headers, gh_org):
     repositories = []
@@ -161,10 +161,10 @@ def get_github_repos(url, headers, gh_org):
                 break
         except Exception as e:
             print("An error has occured: " + str(e))
-            print("The request status is: " + str(res.status_code) + 
+            print("The request status is: " + str(res.status_code) +
                     " | " + str(res.reason))
             break
-    return(repositories)
+    return repositories
 
 def get_github_prs(url, headers, gh_org, repo):
     pullrequests = []
@@ -184,15 +184,15 @@ def get_github_prs(url, headers, gh_org, repo):
                 break
         except Exception as e:
             print("An error has occured: " + str(e))
-            print("The request status is: " + str(res.status_code) + 
+            print("The request status is: " + str(res.status_code) +
                     " | " + str(res.reason))
             break
-    return(pullrequests)
+    return pullrequests
 
 def get_failed_gh_commits(pull, url, gh_org, repo, headers):
     failed_commits = []
     try:
-        req_url = (url + 'repos/' + gh_org + '/' + repo['name'] + 
+        req_url = (url + 'repos/' + gh_org + '/' + repo['name'] +
                     '/commits/' + pull['head']['sha'] + '/check-runs')
         res_sta = requests.request('GET', url=req_url, headers=headers)
         if res_sta.json():
@@ -226,21 +226,18 @@ def get_failed_gh_commits(pull, url, gh_org, repo, headers):
                 " | " + str(res_sta.reason))
         print(json.dumps(res_sta.json()))
         exit()
-    return(failed_commits)
-
+    return failed_commits
 
 def main():
-    
     args = get_args()
-
     failed_commits = []
 
     if args.debug:
         logging.basicConfig(level=logging.DEBUG)
-    
+
     for h in args.hoster:
         if h == 'gitea':
-            
+
             headers = {}
             headers['accept'] = 'application/json'
             if not args.gitea_token:
@@ -272,7 +269,7 @@ def main():
                                 headers=headers
                             )
                             failed_commits.extend(commits)
-        
+
         elif h == 'github':
             url = 'https://api.github.com/'
             headers = {}
@@ -309,4 +306,4 @@ def main():
         print(o.to_json())
 
 if __name__ == '__main__':
-    main()
\ No newline at end of file
+    main()