Update extract_domain_names.py

capa/capabilities/extract_domain_names.py

@@ -1,6 +1,6 @@
 import re
-import ipaddress
 import socket
+import ipaddress
 from typing import List, Iterator, Generator
 from pathlib import Path
 
@@ -18,7 +18,6 @@
     DynamicFeatureExtractor,
 )
 
-
 # these constants also defined in capa.main
 BACKEND_VIV = "vivisect"
 BACKEND_DOTNET = "dotnet"
@@ -273,7 +272,7 @@ def get_function_name(func: FunctionHandle, file: Path) -> str:
 
 def yielded_caller_func_dynamic(
     extractor: DynamicFeatureExtractor, target_string: str, file: Path, start_position: Address
-) -> Generator[str]:
+) -> Generator[str, None, None]:
     """
     we look into an extractor to see what APIs operate on a web domain