refactor: performed pre-commit checks

tests/examples/test_examples_bind_address.py

@@ -2,8 +2,6 @@
 Tests to verify that all examples use 127.0.0.1 instead of 0.0.0.0
 """
 
-import ast
-import os
 from pathlib import Path
 
 
@@ -17,42 +15,42 @@ class TestExamplesBindAddress:
 
     def check_file_for_wildcard_binding(self, filepath):
         """Check if a file contains 0.0.0.0 binding"""
-        with open(filepath, 'r', encoding='utf-8') as f:
+        with open(filepath, encoding="utf-8") as f:
             content = f.read()
-        
+
         # Check for various forms of wildcard binding
         wildcard_patterns = [
-            '0.0.0.0',
-            '/ip4/0.0.0.0/',
+            "0.0.0.0",
+            "/ip4/0.0.0.0/",
         ]
-        
+
         found_wildcards = []
         for line_num, line in enumerate(content.splitlines(), 1):
             for pattern in wildcard_patterns:
-                if pattern in line and not line.strip().startswith('#'):
+                if pattern in line and not line.strip().startswith("#"):
                     found_wildcards.append((line_num, line.strip()))
-        
+
         return found_wildcards
 
     def test_no_wildcard_binding_in_examples(self):
         """Test that no example files use 0.0.0.0 for binding"""
         example_files = self.get_example_files()
-        
+
         # Skip certain files that might legitimately discuss wildcards
         skip_files = [
-            'network_discover.py',  # This demonstrates wildcard expansion
+            "network_discover.py",  # This demonstrates wildcard expansion
         ]
-        
+
         files_with_wildcards = {}
-        
+
         for filepath in example_files:
             if any(skip in str(filepath) for skip in skip_files):
                 continue
-                
+
             wildcards = self.check_file_for_wildcard_binding(filepath)
             if wildcards:
                 files_with_wildcards[str(filepath)] = wildcards
-        
+
         # Assert no wildcards found
         if files_with_wildcards:
             error_msg = "Found wildcard bindings in example files:\n"
@@ -60,51 +58,53 @@ class TestExamplesBindAddress:
                 error_msg += f"\n{filepath}:\n"
                 for line_num, line in occurrences:
                     error_msg += f"  Line {line_num}: {line}\n"
-            
+
             assert False, error_msg
 
     def test_examples_use_loopback_address(self):
         """Test that examples use 127.0.0.1 for local binding"""
         example_files = self.get_example_files()
-        
+
         # Files that should contain listen addresses
         files_with_networking = [
-            'ping/ping.py',
-            'chat/chat.py',
-            'bootstrap/bootstrap.py',
-            'pubsub/pubsub.py',
-            'identify/identify.py',
+            "ping/ping.py",
+            "chat/chat.py",
+            "bootstrap/bootstrap.py",
+            "pubsub/pubsub.py",
+            "identify/identify.py",
         ]
-        
+
         for filename in files_with_networking:
             filepath = None
             for example_file in example_files:
                 if filename in str(example_file):
                     filepath = example_file
                     break
-            
+
             if filepath is None:
                 continue
-                
-            with open(filepath, 'r', encoding='utf-8') as f:
+
+            with open(filepath, encoding="utf-8") as f:
                 content = f.read()
-            
+
             # Check for proper loopback usage
-            has_loopback = '127.0.0.1' in content or 'localhost' in content
-            has_multiaddr_loopback = '/ip4/127.0.0.1/' in content
-            
-            assert has_loopback or has_multiaddr_loopback, \
+            has_loopback = "127.0.0.1" in content or "localhost" in content
+            has_multiaddr_loopback = "/ip4/127.0.0.1/" in content
+
+            assert has_loopback or has_multiaddr_loopback, (
                 f"{filepath} should use loopback address (127.0.0.1)"
+            )
 
     def test_doc_examples_use_loopback(self):
         """Test that documentation examples use secure addresses"""
         doc_examples_dir = Path("examples/doc-examples")
         if not doc_examples_dir.exists():
             return
-            
+
         doc_example_files = list(doc_examples_dir.glob("*.py"))
-        
+
         for filepath in doc_example_files:
             wildcards = self.check_file_for_wildcard_binding(filepath)
-            assert not wildcards, \
+            assert not wildcards, (
                 f"Documentation example {filepath} contains wildcard binding"
+            )