reformatting

bdfr/resource.py

@@ -24,11 +24,11 @@ class Resource:
         self.content: Optional[bytes] = None
         self.url = url
         self.hash: Optional[_hashlib.HASH] = None
-        
+
         # Log the original extension before normalization
         if extension:
             logger.debug(f"Resource constructor received extension: '{extension}' for URL: {url}")
-        
+
         self.extension = self._normalize_extension(extension)
         self.download_function = download_function
         if not self.extension:
@@ -72,14 +72,14 @@ class Resource:
         if self.url.startswith("https://www.reddit.com/media"):
             logger.debug(f"Detected Reddit media URL: {self.url}")
             parsed_url = urllib.parse.urlparse(self.url)
-            url_param = urllib.parse.parse_qs(parsed_url.query).get('url', [None])[0]
+            url_param = urllib.parse.parse_qs(parsed_url.query).get("url", [None])[0]
             if url_param:
                 decoded_url = urllib.parse.unquote(url_param)
                 logger.debug(f"Reddit media URL decoded to: {decoded_url}")
                 stripped_url = urllib.parse.urlsplit(decoded_url).path
 
         # Also handle preview.redd.it URLs which might not have extensions
-        elif "preview.redd.it" in self.url and not stripped_url.endswith(('.jpg', '.jpeg', '.png', '.gif', '.webp')):
+        elif "preview.redd.it" in self.url and not stripped_url.endswith((".jpg", ".jpeg", ".png", ".gif", ".webp")):
             logger.debug(f"Detected preview.redd.it URL without extension: {self.url}")
             # For preview URLs, try to infer from common patterns or add fallback logic
 
@@ -92,7 +92,7 @@ class Resource:
             logger.warning(f"Could not determine extension for URL: {self.url} (path: {stripped_url})")
 
             # As a last resort, if we have content, try to detect by magic numbers
-            if hasattr(self, 'content') and self.content:
+            if hasattr(self, "content") and self.content:
                 detected = self._detect_extension_by_content()
                 return self._normalize_extension(detected) if detected else None
 
@@ -104,21 +104,21 @@ class Resource:
             return None
 
         # Check for common image formats
-        if self.content.startswith(b'\xFF\xD8\xFF'):
+        if self.content.startswith(b"\xff\xd8\xff"):
             logger.debug(f"Detected JPEG by magic number for URL: {self.url}")
-            return '.jpg'
-        elif self.content.startswith(b'\x89PNG\r\n\x1a\n'):
+            return ".jpg"
+        elif self.content.startswith(b"\x89PNG\r\n\x1a\n"):
             logger.debug(f"Detected PNG by magic number for URL: {self.url}")
-            return '.png'
-        elif self.content.startswith(b'GIF87a') or self.content.startswith(b'GIF89a'):
+            return ".png"
+        elif self.content.startswith(b"GIF87a") or self.content.startswith(b"GIF89a"):
             logger.debug(f"Detected GIF by magic number for URL: {self.url}")
-            return '.gif'
-        elif self.content.startswith(b'RIFF') and self.content[8:12] == b'WEBP':
+            return ".gif"
+        elif self.content.startswith(b"RIFF") and self.content[8:12] == b"WEBP":
             logger.debug(f"Detected WebP by magic number for URL: {self.url}")
-            return '.webp'
-        elif self.content.startswith(b'BM'):
+            return ".webp"
+        elif self.content.startswith(b"BM"):
             logger.debug(f"Detected BMP by magic number for URL: {self.url}")
-            return '.bmp'
+            return ".bmp"
 
         logger.debug(f"Could not detect file type by magic number for URL: {self.url}")
         return None
@@ -127,15 +127,17 @@ class Resource:
         """Normalize extension to lowercase for consistency"""
         if not extension:
             return None
-        
+
         original = extension
         # Ensure extension starts with a dot
-        if not extension.startswith('.'):
-            extension = '.' + extension
-        
+        if not extension.startswith("."):
+            extension = "." + extension
+
         normalized = extension.lower()
         if original != normalized:
-            logger.info(f"Extension normalization: '{original}' -> '{normalized}' for URL: {self.url if hasattr(self, 'url') else 'unknown'}")
+            logger.info(
+                f"Extension normalization: '{original}' -> '{normalized}' for URL: {self.url if hasattr(self, 'url') else 'unknown'}"
+            )
         return normalized
 
     @staticmethod