diff --git a/CveXplore/api/nvd_nist/nvd_nist_api.py b/CveXplore/api/nvd_nist/nvd_nist_api.py
index aa266153..e4d2ec4b 100644
--- a/CveXplore/api/nvd_nist/nvd_nist_api.py
+++ b/CveXplore/api/nvd_nist/nvd_nist_api.py
@@ -63,11 +63,9 @@ def __init__(
         self.max_page_length = namedtuple("max_page_length", "CVE CPE")(2000, 10000)
 
     def get_url_only(self, resource: dict = None, data: int = 1) -> str:
-
         return self._build_url(resource=resource, data=data)
 
     def _build_url(self, resource: dict = None, data: int = 1) -> str:
-
         if resource is not None:
             resource = urlencode(resource)
             if data == self.datasource.CVE:
@@ -95,7 +93,6 @@ def _connect(
         timeout: int = 60,
         return_response_object: bool = False,
     ):
-
         requests.packages.urllib3.disable_warnings()
 
         request_api_resource = {
@@ -138,7 +135,6 @@ def __repr__(self):
         return f"<< NvdNistApi:{self.baseurl} >>"
 
     def get_cves_from_start_year(self):
-
         start_date = datetime(int(self.config.CVE_START_YEAR), 1, 1, 0, 0, 0, 0)
         start_date_iso = start_date.isoformat()
 
@@ -158,7 +154,6 @@ def check_date_range(
         last_mod_start_date: datetime = None,
         last_mod_end_date: datetime = None,
     ):
-
         # Check if diff > 120 days
         diff = last_mod_end_date - last_mod_start_date
 
@@ -203,7 +198,6 @@ def get_all_data(
         last_mod_start_date: datetime = None,
         last_mod_end_date: datetime = None,
     ):
-
         resource = {}
 
         if last_mod_start_date is not None and last_mod_end_date is not None:
@@ -223,7 +217,6 @@ def get_all_data(
         )
 
         if isinstance(data, int):
-
             for each_data in ApiData(
                 results_per_page=getattr(self.max_page_length, data_type.upper()),
                 start_index=0,
@@ -310,12 +303,10 @@ def __iter__(self):
         return self
 
     def __next__(self):
-
         if (
             self._current_index < self._total_results
             or self._page_length == self._total_results
         ):
-
             start_time = time.time()
 
             if not self.last_stop_time == 0:
@@ -368,7 +359,6 @@ def __next__(self):
         raise StopIteration
 
     def process_async(self):
-
         loop = asyncio.new_event_loop()
         asyncio.set_event_loop(loop)
         results = loop.run_until_complete(self.fetch_all(loop))
diff --git a/CveXplore/cli_cmds/cpe_cmds/commands.py b/CveXplore/cli_cmds/cpe_cmds/commands.py
index 8d6a62e3..ac5a1c5e 100644
--- a/CveXplore/cli_cmds/cpe_cmds/commands.py
+++ b/CveXplore/cli_cmds/cpe_cmds/commands.py
@@ -103,7 +103,6 @@ def search_cmd(
     pretty,
     output,
 ):
-
     if not name and not vendor and title:
         search_by = "title"
     elif name and not vendor and title:
diff --git a/CveXplore/cli_cmds/cve_cmds/commands.py b/CveXplore/cli_cmds/cve_cmds/commands.py
index e3237cd8..4a1b12c5 100644
--- a/CveXplore/cli_cmds/cve_cmds/commands.py
+++ b/CveXplore/cli_cmds/cve_cmds/commands.py
@@ -54,7 +54,6 @@ def search_cmd(
     pretty,
     output,
 ):
-
     if cve:
         ret_list = ctx.obj["data_source"].cves_by_id(*cve)
     else:
diff --git a/CveXplore/cli_cmds/stats_cmds/commands.py b/CveXplore/cli_cmds/stats_cmds/commands.py
index 34809719..00b2481e 100644
--- a/CveXplore/cli_cmds/stats_cmds/commands.py
+++ b/CveXplore/cli_cmds/stats_cmds/commands.py
@@ -7,7 +7,6 @@
 @click.option("--pretty", is_flag=True, help="Pretty print the output")
 @click.pass_context
 def stats_cmd(ctx, pretty, output="json"):
-
     if ctx.invoked_subcommand is None:
         printer(
             input_data=ctx.obj["data_source"].get_db_content_stats(),
diff --git a/CveXplore/database/connection/mongo_db.py b/CveXplore/database/connection/mongo_db.py
index ac914d36..a850862b 100644
--- a/CveXplore/database/connection/mongo_db.py
+++ b/CveXplore/database/connection/mongo_db.py
@@ -54,7 +54,6 @@ def __init__(
         atexit.register(self.disconnect)
 
     def get_collections_details(self):
-
         for each in self._dbclient.list_collections():
             yield each
 
@@ -69,7 +68,6 @@ def set_handlers_for_collections(self):
 
     @property
     def get_collection_names(self):
-
         return self._dbclient.list_collection_names()
 
     def disconnect(self):
diff --git a/CveXplore/database/maintenance/DatabaseSchemaChecker.py b/CveXplore/database/maintenance/DatabaseSchemaChecker.py
index cf1cb82e..85145cfb 100644
--- a/CveXplore/database/maintenance/DatabaseSchemaChecker.py
+++ b/CveXplore/database/maintenance/DatabaseSchemaChecker.py
@@ -49,7 +49,6 @@ def create_indexes(self):
 
     def update(self):
         try:
-
             current_record = list(self.dbh.find({}))
 
             if len(current_record) != 0:
diff --git a/CveXplore/database/maintenance/Sources_process.py b/CveXplore/database/maintenance/Sources_process.py
index a67d6abb..7c4beea2 100644
--- a/CveXplore/database/maintenance/Sources_process.py
+++ b/CveXplore/database/maintenance/Sources_process.py
@@ -117,9 +117,7 @@ def process_downloads(self, sites: list = None):
         )
 
         if self.do_process:
-
             if not self.is_update:
-
                 total_results = self.api_handler.get_count(
                     self.api_handler.datasource.CPE
                 )
@@ -756,9 +754,7 @@ def process_downloads(self, sites: list = None):
         )
 
         if self.do_process:
-
             if not self.is_update:
-
                 total_results = self.api_handler.get_count(
                     self.api_handler.datasource.CVE
                 )
@@ -859,7 +855,6 @@ def update(self):
         return self.last_modified
 
     def populate(self):
-
         self.logger.info("CVE database population started")
 
         self.logger.info(
@@ -900,7 +895,6 @@ def __init__(self):
         self.logger = logging.getLogger("VIADownloads")
 
     def file_to_queue(self, file_tuple: Tuple[str, str]):
-
         working_dir, filename = file_tuple
 
         for cve in self.ijson_handler.fetch(filename=filename, prefix=self.prefix):
@@ -930,7 +924,6 @@ def file_to_queue(self, file_tuple: Tuple[str, str]):
             )
 
     def process_item(self, item: dict):
-
         if self.is_update:
             self.queue.put(
                 DatabaseAction(
@@ -991,7 +984,6 @@ def __init__(self):
         self.parser.setContentHandler(self.ch)
 
     def file_to_queue(self, file_tuple: Tuple[str, str]):
-
         working_dir, filename = file_tuple
 
         self.parser.parse(filename)
@@ -1053,7 +1045,6 @@ def __init__(self):
         self.parser.setContentHandler(self.ch)
 
     def file_to_queue(self, file_tuple: Tuple[str, str]):
-
         working_dir, filename = file_tuple
 
         for f in glob.glob(f"{working_dir}/*.xml"):
@@ -1113,7 +1104,6 @@ class DatabaseIndexer(object):
     """
 
     def __init__(self):
-
         database = MongoDBConnection(**json.loads(os.getenv("MONGODB_CON_DETAILS")))
         self.database = database._dbclient
 
@@ -1175,7 +1165,6 @@ def getInfo(self, collection: str):
         return sanitize(self.database["info"].find_one({"db": collection}))
 
     def create_indexes(self, collection: str = None):
-
         if collection is not None:
             try:
                 for each in self.indexes[collection]:
diff --git a/CveXplore/database/maintenance/content_handlers.py b/CveXplore/database/maintenance/content_handlers.py
index 71d3bc77..d7a62b2a 100644
--- a/CveXplore/database/maintenance/content_handlers.py
+++ b/CveXplore/database/maintenance/content_handlers.py
@@ -77,7 +77,6 @@ def __init__(self):
         self.execution_flow = defaultdict(dict)
 
     def startElement(self, name, attrs):
-
         if name == "Attack_Pattern_Catalog":
             self.Attack_Pattern_Catalog_tag = True
         if name == "Attack_Patterns" and self.Attack_Pattern_Catalog_tag:
@@ -230,7 +229,6 @@ def endElement(self, name):
                     )
 
             elif self.taxonomy_name == "WASC":
-
                 if "/" in self.entry_name_ch:
                     url = "http://projects.webappsec.org/{}".format(
                         self.entry_name_ch.replace("/", " and ").replace(" ", "-")
@@ -385,7 +383,6 @@ def __init__(self):
         self.category_relationships_tag = False
 
     def startElement(self, name, attrs):
-
         if name == "Weakness":
             self.weakness_tag = True
             self.statement = ""
diff --git a/CveXplore/database/maintenance/db_action.py b/CveXplore/database/maintenance/db_action.py
index 0ab23661..917517de 100644
--- a/CveXplore/database/maintenance/db_action.py
+++ b/CveXplore/database/maintenance/db_action.py
@@ -7,7 +7,6 @@ class DatabaseAction(object):
     actions = collections.namedtuple("Actions", "InsertOne UpdateOne")(0, 1)
 
     def __init__(self, action: actions, collection: str, doc: dict):
-
         self.action = action
         self.collection = collection
         self.doc = doc
diff --git a/CveXplore/database/maintenance/main_updater.py b/CveXplore/database/maintenance/main_updater.py
index 2b8be92d..c4fe1277 100644
--- a/CveXplore/database/maintenance/main_updater.py
+++ b/CveXplore/database/maintenance/main_updater.py
@@ -62,7 +62,6 @@ def update(self, update_source: str | list = None):
 
         try:
             if update_source is None:
-
                 for source in self.sources:
                     up = source["updater"]()
                     up.update()
diff --git a/CveXplore/database/maintenance/worker_q.py b/CveXplore/database/maintenance/worker_q.py
index f1fa5fd5..faf2282c 100644
--- a/CveXplore/database/maintenance/worker_q.py
+++ b/CveXplore/database/maintenance/worker_q.py
@@ -5,7 +5,6 @@
 
 class WorkerQueue(Queue):
     def __init__(self, name: str, maxsize: int = 0):
-
         super().__init__(maxsize)
         self.name = name
         self.maxsize = maxsize
diff --git a/CveXplore/main.py b/CveXplore/main.py
index 77c23cea..1b0b529b 100644
--- a/CveXplore/main.py
+++ b/CveXplore/main.py
@@ -324,7 +324,6 @@ def get_db_content_stats(self) -> dict | str:
         stats = defaultdict(dict)
 
         if not isinstance(self.datasource, ApiDatabaseSource):
-
             if hasattr(self.datasource, "store_info"):
                 results = self.datasource.store_info.find({})
                 for each in results:
diff --git a/CveXplore/objects/capec.py b/CveXplore/objects/capec.py
index a7f17d1c..6082466a 100644
--- a/CveXplore/objects/capec.py
+++ b/CveXplore/objects/capec.py
@@ -11,7 +11,6 @@ class Capec(DatasourceConnection):
     """
 
     def __init__(self, **kwargs):
-
         super().__init__("capec")
 
         for each in kwargs:
diff --git a/CveXplore/objects/cpe.py b/CveXplore/objects/cpe.py
index f7d7dbbe..1d9eef07 100644
--- a/CveXplore/objects/cpe.py
+++ b/CveXplore/objects/cpe.py
@@ -16,7 +16,6 @@ class Cpe(DatasourceConnection):
     """
 
     def __init__(self, **kwargs):
-
         super().__init__("cpe")
 
         for each in kwargs:
diff --git a/CveXplore/objects/cves.py b/CveXplore/objects/cves.py
index b897f583..9acea2b1 100644
--- a/CveXplore/objects/cves.py
+++ b/CveXplore/objects/cves.py
@@ -13,7 +13,6 @@ class Cves(DatasourceConnection):
     """
 
     def __init__(self, **kwargs):
-
         super().__init__("cves")
 
         for each in kwargs:
diff --git a/CveXplore/objects/cwe.py b/CveXplore/objects/cwe.py
index 976f7623..0198ce04 100644
--- a/CveXplore/objects/cwe.py
+++ b/CveXplore/objects/cwe.py
@@ -11,7 +11,6 @@ class Cwe(DatasourceConnection):
     """
 
     def __init__(self, **kwargs):
-
         super().__init__("cwe")
 
         for each in kwargs: