fix: Make mypy happy, few syntax changes

pymispwarninglists/api.py

@@ -8,10 +8,10 @@ import sys
 from collections.abc import Mapping
 from contextlib import suppress
 from glob import glob
-from ipaddress import  ip_network, IPv6Address, IPv4Address, IPv4Network, IPv6Network, _BaseNetwork, \
+from ipaddress import ip_network, IPv6Address, IPv4Address, IPv4Network, _BaseNetwork, \
     AddressValueError, NetmaskValueError
 from pathlib import Path
-from typing import Union, Dict, Any, List, Optional, Tuple
+from typing import Union, Dict, Any, List, Optional, Tuple, Sequence
 from urllib.parse import urlparse
 
 from . import tools
@@ -32,7 +32,6 @@ def json_default(obj: 'WarningList') -> Union[Dict, str]:
         return obj.to_dict()
 
 
-
 class WarningList():
 
     expected_types = ['string', 'substring', 'hostname', 'cidr', 'regex']
@@ -212,7 +211,7 @@ def compile_network_filters(values: list) -> Tuple[NetworkFilter, NetworkFilter]
     return ipv4_filter, ipv6_filter
 
 
-def convert_networks(values: list) -> List[_BaseNetwork]:
+def convert_networks(values: list) -> Sequence[_BaseNetwork]:
     valid_ips = []
     invalid_ips = []
 

tests/tests.py

@@ -63,6 +63,9 @@ class TestPyMISPWarningLists(unittest.TestCase):
 
 
 class TestCidrList(unittest.TestCase):
+
+    cidr_list: WarningList
+
     @classmethod
     def setUpClass(cls) -> None:
         cls.cidr_list = WarningList(