diff --git a/boefjes/boefjes/plugins/kat_adr_validator/main.py b/boefjes/boefjes/plugins/kat_adr_validator/main.py
index de6604674c0..0dae8adfa50 100644
--- a/boefjes/boefjes/plugins/kat_adr_validator/main.py
+++ b/boefjes/boefjes/plugins/kat_adr_validator/main.py
@@ -17,8 +17,8 @@ def run_adr_validator(url: str) -> str:
 
 
 def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
-    input = boefje_meta.arguments["input"]
-    api_url = input["api_url"]
+    input_ooi = boefje_meta.arguments["input"]
+    api_url = input_ooi["api_url"]
 
     hostname = api_url["netloc"]["name"]
     path = api_url["path"]
diff --git a/boefjes/boefjes/plugins/kat_leakix/main.py b/boefjes/boefjes/plugins/kat_leakix/main.py
index 232f3051dad..9aa6c9fc3ba 100644
--- a/boefjes/boefjes/plugins/kat_leakix/main.py
+++ b/boefjes/boefjes/plugins/kat_leakix/main.py
@@ -21,13 +21,13 @@ def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
     else:
         raise NameError(f'Expected an IPAddress of Hostname, but got pk "{pk}"')
 
-    for type in ("leak", "service"):
+    for scope in ("leak", "service"):
         page_counter = 0
         want_next_result = True
         while want_next_result:
             want_next_result = False
             response = requests.get(
-                f"https://leakix.net/search?scope={type}&q={dork}&page={page_counter}",
+                f"https://leakix.net/search?scope={scope}&q={dork}&page={page_counter}",
                 headers={"Accept": "application/json", "api-key": getenv("LEAKIX_API")},
             )
             page_counter += 1
diff --git a/boefjes/boefjes/plugins/kat_nuclei/main.py b/boefjes/boefjes/plugins/kat_nuclei/main.py
index 4cfe895b5ff..9ac64f110ac 100644
--- a/boefjes/boefjes/plugins/kat_nuclei/main.py
+++ b/boefjes/boefjes/plugins/kat_nuclei/main.py
@@ -7,15 +7,15 @@
 NUCLEI_IMAGE = "projectdiscovery/nuclei:latest"
 
 
-def verify_hostname_meta(input):
+def verify_hostname_meta(input_ooi):
     # if the input object is HostnameHTTPURL then the hostname is located in netloc
-    if "netloc" in input and "name" in input["netloc"]:
-        netloc_name = input["netloc"]["name"]
-        port = input["port"]
+    if "netloc" in input_ooi and "name" in input_ooi["netloc"]:
+        netloc_name = input_ooi["netloc"]["name"]
+        port = input_ooi["port"]
         return f"{netloc_name}:{port}"
     else:
         # otherwise the Hostname input object is used
-        return input["name"]
+        return input_ooi["name"]
 
 
 def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
diff --git a/boefjes/boefjes/plugins/kat_nuclei_cve/main.py b/boefjes/boefjes/plugins/kat_nuclei_cve/main.py
index aae6fcb08c4..390446ea2ad 100644
--- a/boefjes/boefjes/plugins/kat_nuclei_cve/main.py
+++ b/boefjes/boefjes/plugins/kat_nuclei_cve/main.py
@@ -7,15 +7,15 @@
 NUCLEI_IMAGE = "projectdiscovery/nuclei:v2.9.1"
 
 
-def verify_hostname_meta(input):
+def verify_hostname_meta(input_ooi):
     # if the input object is HostnameHTTPURL then the hostname is located in netloc
-    if "netloc" in input and "name" in input["netloc"]:
-        netloc_name = input["netloc"]["name"]
-        port = input["port"]
+    if "netloc" in input_ooi and "name" in input_ooi["netloc"]:
+        netloc_name = input_ooi["netloc"]["name"]
+        port = input_ooi["port"]
         return f"{netloc_name}:{port}"
     else:
         # otherwise the Hostname input object is used
-        return input["name"]
+        return input_ooi["name"]
 
 
 def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
diff --git a/boefjes/boefjes/plugins/kat_nuclei_exposed_panels/main.py b/boefjes/boefjes/plugins/kat_nuclei_exposed_panels/main.py
index d8ec3d8612f..d4ae8e66e37 100644
--- a/boefjes/boefjes/plugins/kat_nuclei_exposed_panels/main.py
+++ b/boefjes/boefjes/plugins/kat_nuclei_exposed_panels/main.py
@@ -7,15 +7,15 @@
 NUCLEI_IMAGE = "projectdiscovery/nuclei:v2.9.1"
 
 
-def verify_hostname_meta(input):
+def verify_hostname_meta(input_ooi):
     # if the input object is HostnameHTTPURL then the hostname is located in netloc
-    if "netloc" in input and "name" in input["netloc"]:
-        netloc_name = input["netloc"]["name"]
-        port = input["port"]
+    if "netloc" in input_ooi and "name" in input_ooi["netloc"]:
+        netloc_name = input_ooi["netloc"]["name"]
+        port = input_ooi["port"]
         return f"{netloc_name}:{port}"
     else:
         # otherwise the Hostname input object is used
-        return input["name"]
+        return input_ooi["name"]
 
 
 def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
diff --git a/boefjes/boefjes/plugins/kat_nuclei_take_over/main.py b/boefjes/boefjes/plugins/kat_nuclei_take_over/main.py
index 1e59c153748..7f1b756238f 100644
--- a/boefjes/boefjes/plugins/kat_nuclei_take_over/main.py
+++ b/boefjes/boefjes/plugins/kat_nuclei_take_over/main.py
@@ -7,15 +7,15 @@
 NUCLEI_IMAGE = "projectdiscovery/nuclei:v2.9.1"
 
 
-def verify_hostname_meta(input):
+def verify_hostname_meta(input_ooi):
     # if the input object is HostnameHTTPURL then the hostname is located in netloc
-    if "netloc" in input and "name" in input["netloc"]:
-        netloc_name = input["netloc"]["name"]
-        port = input["port"]
+    if "netloc" in input_ooi and "name" in input_ooi["netloc"]:
+        netloc_name = input_ooi["netloc"]["name"]
+        port = input_ooi["port"]
         return f"{netloc_name}:{port}"
     else:
         # otherwise the Hostname input object is used
-        return input["name"]
+        return input_ooi["name"]
 
 
 def run(boefje_meta: BoefjeMeta) -> List[Tuple[set, Union[bytes, str]]]:
diff --git a/bytes/bytes/config.py b/bytes/bytes/config.py
index cf7f5727d3a..991964b545c 100644
--- a/bytes/bytes/config.py
+++ b/bytes/bytes/config.py
@@ -47,10 +47,10 @@ def get_settings() -> Settings:
 def has_pastebin_key() -> bool:
     settings = get_settings()
 
-    return settings.pastebin_api_dev_key != ""
+    return bool(settings.pastebin_api_dev_key)
 
 
 def has_rfc3161_provider() -> bool:
     settings = get_settings()
 
-    return settings.rfc3161_provider != ""
+    return bool(settings.rfc3161_provider)
diff --git a/bytes/bytes/timestamping/pastebin.py b/bytes/bytes/timestamping/pastebin.py
index ba9b286fe43..1d1acb5421a 100644
--- a/bytes/bytes/timestamping/pastebin.py
+++ b/bytes/bytes/timestamping/pastebin.py
@@ -31,7 +31,7 @@ def store(self, secure_hash: SecureHash) -> RetrievalLink:
         return RetrievalLink(link)
 
     def retrieve(self, link: RetrievalLink) -> SecureHash:
-        if link == "":
+        if not link:
             raise ValueError("Can't retrieve secure-hash from empty link.")
 
         paste_id = link.split("/").pop()
diff --git a/bytes/bytes/timestamping/rfc3161.py b/bytes/bytes/timestamping/rfc3161.py
index 01cfae4706f..ba0b1992ff7 100644
--- a/bytes/bytes/timestamping/rfc3161.py
+++ b/bytes/bytes/timestamping/rfc3161.py
@@ -21,7 +21,7 @@ def store(self, secure_hash: SecureHash) -> RetrievalLink:
     def verify(self, link: RetrievalLink, secure_hash: SecureHash) -> bool:
         # Note: "link" is an inconvenient name for this implementation since it is a token.
 
-        if link == "":
+        if not link:
             raise ValueError("Can't retrieve secure-hash from empty link.")
 
         time_stamp_token = base64.b64decode(str(link))
diff --git a/bytes/tests/unit/test_raw_repository.py b/bytes/tests/unit/test_raw_repository.py
index 8f6d73f3418..112f6ea67f0 100644
--- a/bytes/tests/unit/test_raw_repository.py
+++ b/bytes/tests/unit/test_raw_repository.py
@@ -13,7 +13,7 @@
 def has_encryption_keys() -> bool:
     settings = get_settings()
 
-    return settings.kat_private_key_b64 != "" and settings.vws_public_key_b64 != ""
+    return settings.kat_private_key_b64 and settings.vws_public_key_b64
 
 
 def test_save_raw(raw_repository: FileRawRepository) -> None:
diff --git a/keiko/keiko/keiko.py b/keiko/keiko/keiko.py
index bde12068f20..653ae8f485d 100644
--- a/keiko/keiko/keiko.py
+++ b/keiko/keiko/keiko.py
@@ -43,7 +43,7 @@
 )
 
 
-def latex_escape(input: Any) -> str:
+def latex_escape(text: Any) -> str:
     """Escape characters that are special in LaTeX.
 
     References:
@@ -51,14 +51,14 @@ def latex_escape(input: Any) -> str:
     - http://tex.stackexchange.com/a/34586/43228
     - http://stackoverflow.com/a/16264094/2570866
     """
-    if not isinstance(input, str):
-        input = str(input)
-    return input.translate(LATEX_SPECIAL_CHARS)
+    if not isinstance(text, str):
+        text = str(text)
+    return text.translate(LATEX_SPECIAL_CHARS)
 
 
-def baretext(input_: str) -> str:
+def baretext(text: str) -> str:
     """Remove non-alphanumeric characters from a string."""
-    return "".join(filter(str.isalnum, input_)).lower()
+    return "".join(filter(str.isalnum, text)).lower()
 
 
 @tracer.start_as_current_span("generate_report")
@@ -231,6 +231,6 @@ def read_glossary(glossary: str, settings: Settings) -> Dict[str, Tuple[str, str
         for row in csvreader:
             # only allow words with baretext representation
             bare_word = baretext(row[0])
-            if bare_word != "":
+            if bare_word:
                 glossary_entries[baretext(row[0])] = row[0], row[1]
     return glossary_entries
diff --git a/mula/scheduler/queues/pq.py b/mula/scheduler/queues/pq.py
index d3317e5d55a..3700034440f 100644
--- a/mula/scheduler/queues/pq.py
+++ b/mula/scheduler/queues/pq.py
@@ -223,16 +223,16 @@ def is_item_on_queue(self, p_item: models.PrioritizedItem) -> bool:
 
         return True
 
-    def is_item_on_queue_by_hash(self, hash: str) -> bool:
+    def is_item_on_queue_by_hash(self, item_hash: str) -> bool:
         """Check if an item is on the queue by its hash.
 
         Args:
-            hash: The hash of the item to be checked.
+            item_hash: The hash of the item to be checked.
 
         Returns:
             True if the item is on the queue, False otherwise.
         """
-        item = self.pq_store.get_item_by_hash(self.pq_id, hash)
+        item = self.pq_store.get_item_by_hash(self.pq_id, item_hash)
         return item is not None
 
     def get_p_item_by_identifier(self, p_item: models.PrioritizedItem) -> Optional[models.PrioritizedItem]:
diff --git a/mula/scheduler/repositories/sqlalchemy/task_store.py b/mula/scheduler/repositories/sqlalchemy/task_store.py
index a958a2a05e4..db2249a56ac 100644
--- a/mula/scheduler/repositories/sqlalchemy/task_store.py
+++ b/mula/scheduler/repositories/sqlalchemy/task_store.py
@@ -23,7 +23,7 @@ def __init__(self, datastore: SQLAlchemy) -> None:
     def get_tasks(
         self,
         scheduler_id: Optional[str],
-        type: Optional[str],
+        task_type: Optional[str],
         status: Optional[str],
         min_created_at: Optional[datetime.datetime],
         max_created_at: Optional[datetime.datetime],
@@ -38,8 +38,8 @@ def get_tasks(
             if scheduler_id is not None:
                 query = query.filter(models.TaskORM.scheduler_id == scheduler_id)
 
-            if type is not None:
-                query = query.filter(models.TaskORM.type == type)
+            if task_type is not None:
+                query = query.filter(models.TaskORM.type == task_type)
 
             if status is not None:
                 query = query.filter(models.TaskORM.status == models.TaskStatus(status).name)
diff --git a/mula/scheduler/repositories/stores.py b/mula/scheduler/repositories/stores.py
index e6347edb8ff..70f229712af 100644
--- a/mula/scheduler/repositories/stores.py
+++ b/mula/scheduler/repositories/stores.py
@@ -19,7 +19,7 @@ def __init__(self) -> None:
     def get_tasks(
         self,
         scheduler_id: Optional[str],
-        type: Optional[str],
+        task_type: Optional[str],
         status: Optional[str],
         min_created_at: Optional[datetime.datetime],
         max_created_at: Optional[datetime.datetime],
diff --git a/mula/scheduler/schedulers/scheduler.py b/mula/scheduler/schedulers/scheduler.py
index 335e3e8ef8b..ad3d64d4013 100644
--- a/mula/scheduler/schedulers/scheduler.py
+++ b/mula/scheduler/schedulers/scheduler.py
@@ -300,8 +300,8 @@ def is_space_on_queue(self) -> bool:
 
         return True
 
-    def is_item_on_queue_by_hash(self, hash: str) -> bool:
-        return self.queue.is_item_on_queue_by_hash(hash)
+    def is_item_on_queue_by_hash(self, item_hash: str) -> bool:
+        return self.queue.is_item_on_queue_by_hash(item_hash)
 
     def stop(self) -> None:
         """Stop the scheduler."""
diff --git a/mula/scheduler/server/server.py b/mula/scheduler/server/server.py
index a1de21d1eb6..9ac3035e5ff 100644
--- a/mula/scheduler/server/server.py
+++ b/mula/scheduler/server/server.py
@@ -231,7 +231,7 @@ def list_tasks(
         self,
         request: fastapi.Request,
         scheduler_id: Optional[str] = None,
-        type: Optional[str] = None,
+        task_type: Optional[str] = None,
         status: Optional[str] = None,
         offset: int = 0,
         limit: int = 10,
@@ -246,7 +246,7 @@ def list_tasks(
 
             results, count = self.ctx.task_store.get_tasks(
                 scheduler_id=scheduler_id,
-                type=type,
+                task_type=task_type,
                 status=status,
                 offset=offset,
                 limit=limit,
diff --git a/octopoes/bits/oois_in_headers/oois_in_headers.py b/octopoes/bits/oois_in_headers/oois_in_headers.py
index 981fe926bd8..cc15d402b81 100644
--- a/octopoes/bits/oois_in_headers/oois_in_headers.py
+++ b/octopoes/bits/oois_in_headers/oois_in_headers.py
@@ -35,15 +35,15 @@ def run(input_ooi: HTTPHeader, additional_oois: List, config: Dict[str, str]) ->
     if input_ooi.key.lower() == "content-security-policy":
         urls_and_hostname = re.findall(r"(?:(?:https?|ftp):\/\/)?[\w/\-?=%.]+\.[\w/\-&?=%.]+", input_ooi.value)
 
-        for object in urls_and_hostname:
+        for url_or_hostname in urls_and_hostname:
             try:
-                u = URL(raw=object, network=network.reference)
+                u = URL(raw=url_or_hostname, network=network.reference)
                 yield u
                 http_header_url = HTTPHeaderURL(header=input_ooi.reference, url=u.reference)
                 yield http_header_url
             # some hostnames get classified as urls by the regex here, they need to be parsed by another bit
             except ValidationError:
-                name = object if object[0] != "." else object[1:]
+                name = url_or_hostname if url_or_hostname[0] != "." else url_or_hostname[1:]
                 h = Hostname(name=name, network=network.reference)
                 yield h
                 http_header_hostname = HTTPHeaderHostname(header=input_ooi.reference, hostname=h.reference)
diff --git a/octopoes/bits/spf_discovery/internetnl_spf_parser.py b/octopoes/bits/spf_discovery/internetnl_spf_parser.py
index 43d8a85fd23..11e84f082c8 100644
--- a/octopoes/bits/spf_discovery/internetnl_spf_parser.py
+++ b/octopoes/bits/spf_discovery/internetnl_spf_parser.py
@@ -131,9 +131,9 @@ def _check_domain_end(tokens):
     + Optional(dual_cidr_length)
 )
 include = Combine(Optional(qualifier) + CaselessLiteral("include:") + domain_spec)
-all = Combine(Optional(qualifier) + CaselessLiteral("all"))
+all_ = Combine(Optional(qualifier) + CaselessLiteral("all"))
 
-mechanism = all | include | a | mx | ptr | ip4 | ip6 | exists
+mechanism = all_ | include | a | mx | ptr | ip4 | ip6 | exists
 directive = mechanism
 terms = ZeroOrMore(OneOrMore(SP) + (directive | modifier))
 
diff --git a/octopoes/octopoes/models/ooi/software.py b/octopoes/octopoes/models/ooi/software.py
index eaedfb66d13..7b243491f2e 100644
--- a/octopoes/octopoes/models/ooi/software.py
+++ b/octopoes/octopoes/models/ooi/software.py
@@ -18,7 +18,7 @@ class Software(OOI):
     @classmethod
     def format_reference_human_readable(cls, reference: Reference) -> str:
         version = reference.tokenized.version
-        if version != "":
+        if version:
             version = f" {version}"
         return f"{reference.tokenized.name}{version}"
 
diff --git a/pyproject.toml b/pyproject.toml
index 837bdcbbf42..7dd40ae8182 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -25,8 +25,9 @@ paths = ["."]
 [tool.ruff]
 # Enable classic flake8, pyflakes, eradicate, and tidyimport
 # To be extended with DJ, PT, RUF, C90, D, PL, RET
-select = ["E", "F", "ERA", "W", "TID", "I", "G", "INP", "T20", "UP", "ISC", "PTH", "SIM"]
-ignore = ["UP006", "UP007"] # non-pep585-annotation and non-pep604-annotation are not actually compatible with 3.8
+select = ["E", "F", "ERA", "W", "TID", "I", "G", "INP", "T20", "UP", "ISC", "PTH", "SIM", "PLC", "A"]
+# non-pep585-annotation and non-pep604-annotation are not actually compatible with 3.8
+ignore = ["UP006", "UP007", "A003"]
 fix = true
 
 # Exclude a variety of commonly ignored directories.
@@ -73,7 +74,7 @@ task-tags = ["Example", "todo", "TODO", "FIXME"]
 "boefjes/boefjes/plugins/kat_binaryedge/http_web/normalize.py" = ["ERA001"]
 "*/packaging/*" = ["INP"]
 "*/.ci/*" = ["INP"]
-"conf.py" = ["INP", "PTH"]
+"conf.py" = ["INP", "PTH", "A"]
 "conftest.py" = ["INP"]
 "setup.py" = ["INP"]
 "manage.py" = ["INP"]
diff --git a/rocky/katalogus/views/plugin_detail.py b/rocky/katalogus/views/plugin_detail.py
index 3d4d1f0a23b..cef6f12d2f2 100644
--- a/rocky/katalogus/views/plugin_detail.py
+++ b/rocky/katalogus/views/plugin_detail.py
@@ -41,7 +41,7 @@ class PluginDetailView(PluginSettingsListView, BoefjeMixin, TemplateView):
 
     def get_scan_history(self) -> Page:
         scheduler_id = f"{self.plugin.type}-{self.organization.code}"
-        type = self.plugin.type
+        plugin_type = self.plugin.type
         plugin_id = self.plugin.id
         input_ooi = self.request.GET.get("scan_history_search")
         status = self.request.GET.get("scan_history_status")
@@ -60,7 +60,7 @@ def get_scan_history(self) -> Page:
 
         scan_history = scheduler.client.get_lazy_task_list(
             scheduler_id=scheduler_id,
-            type=type,
+            task_type=plugin_type,
             plugin_id=plugin_id,
             input_ooi=input_ooi,
             status=status,
diff --git a/rocky/rocky/scheduler.py b/rocky/rocky/scheduler.py
index ea4b59f9b29..da36d13280a 100644
--- a/rocky/rocky/scheduler.py
+++ b/rocky/rocky/scheduler.py
@@ -178,7 +178,7 @@ def list_tasks(
     def get_lazy_task_list(
         self,
         scheduler_id: str,
-        type: Optional[str] = None,
+        task_type: Optional[str] = None,
         status: Optional[str] = None,
         min_created_at: Optional[datetime.datetime] = None,
         max_created_at: Optional[datetime.datetime] = None,
@@ -189,7 +189,7 @@ def get_lazy_task_list(
         return LazyTaskList(
             self,
             scheduler_id=scheduler_id,
-            type=type,
+            type=task_type,
             status=status,
             min_created_at=min_created_at,
             max_created_at=max_created_at,
diff --git a/rocky/rocky/views/ooi_detail.py b/rocky/rocky/views/ooi_detail.py
index b91f48ec705..03189c9097b 100644
--- a/rocky/rocky/views/ooi_detail.py
+++ b/rocky/rocky/views/ooi_detail.py
@@ -117,7 +117,7 @@ def get_scan_history(self) -> Page:
             status=status,
             min_created_at=min_created_at,
             max_created_at=max_created_at,
-            type="boefje",
+            task_type="boefje",
             input_ooi=self.get_ooi_id(),
             plugin_id=plugin_id,
         )
diff --git a/rocky/tools/add_ooi_information.py b/rocky/tools/add_ooi_information.py
index df82cef72f5..5a7e5496d68 100644
--- a/rocky/tools/add_ooi_information.py
+++ b/rocky/tools/add_ooi_information.py
@@ -254,9 +254,9 @@ def table_to_2d(table_tag):
     return table
 
 
-def _map_usage_value(value: str):
+def _map_usage_value(value: str) -> bool:
     value = value.lower().strip()
-    return value is not None and value != "" and value != "no"
+    return value is not None and value and value != "no"
 
 
 def wiki_port_tables() -> List[_PortInfo]:
diff --git a/rocky/tools/admin.py b/rocky/tools/admin.py
index c0bf85bf5cd..f69ccb092b2 100644
--- a/rocky/tools/admin.py
+++ b/rocky/tools/admin.py
@@ -34,7 +34,7 @@ class OOIInformationAdmin(admin.ModelAdmin):
     # if pk is not readonly, it will create a new record upon editing
     def get_readonly_fields(self, request, obj=None):
         if obj is not None:  # editing an existing object
-            if obj.value == "":
+            if not obj.value:
                 return self.readonly_fields + (
                     "id",
                     "consult_api",
diff --git a/rocky/tools/forms/finding_type.py b/rocky/tools/forms/finding_type.py
index a82a957eac8..3716600b53c 100644
--- a/rocky/tools/forms/finding_type.py
+++ b/rocky/tools/forms/finding_type.py
@@ -87,8 +87,8 @@ def clean_id(self):
 
         return data
 
-    def check_finding_type_existence(self, id):
-        _, created = OOIInformation.objects.get_or_create(id=f"KATFindingType|{id}")
+    def check_finding_type_existence(self, finding_type_id):
+        _, created = OOIInformation.objects.get_or_create(id=f"KATFindingType|{finding_type_id}")
 
         if not created:
             raise ValidationError(_("Finding type already exists"))
diff --git a/rocky/tools/models.py b/rocky/tools/models.py
index fbfb35189cc..fdedcc9556a 100644
--- a/rocky/tools/models.py
+++ b/rocky/tools/models.py
@@ -257,7 +257,7 @@ def value(self):
 
     @property
     def description(self):
-        if self.data["description"] == "":
+        if not self.data["description"]:
             self.get_internet_description()
         return self.data["description"]
 
diff --git a/rocky/tools/ooi_form.py b/rocky/tools/ooi_form.py
index 1c2a9cdb40c..9b09df97c6f 100644
--- a/rocky/tools/ooi_form.py
+++ b/rocky/tools/ooi_form.py
@@ -26,7 +26,7 @@ def __init__(self, ooi_class: Type[OOI], connector: OctopoesAPIConnector, *args,
             self.fields[name] = field
 
     def clean(self):
-        return {key: value for key, value in super().clean().items() if value != ""}
+        return {key: value for key, value in super().clean().items() if value}
 
     def get_fields(self) -> Dict[str, forms.fields.Field]:
         return self.generate_form_fields()