diff --git a/src/streaming/extract_stream.py b/src/streaming/extract_stream.py
index 29bb8cf..b04c43f 100644
--- a/src/streaming/extract_stream.py
+++ b/src/streaming/extract_stream.py
@@ -6,7 +6,7 @@ import io
 import lzma
 import tarfile
 import tempfile
-from collections.abc import Iterable, Iterator
+from collections.abc import Iterable, Iterator, Callable
 from dataclasses import dataclass
 from pathlib import Path
 from urllib.parse import urlparse
@@ -21,10 +21,12 @@ class ExtractConfig:
 
 
 def _infer_name_from_url(url: str) -> str:
-    """Extract filename from URL path using string utilities (not Path for cross-platform compatibility)."""
+    """Extract filename from URL path using string utilities
+    (not Path for cross-platform compatibility)."""
     try:
         path = urlparse(url).path
-        # Use string operations instead of Path() to avoid Windows/Unix path separator issues
+        # Use string operations instead of Path()
+        # to avoid Windows/Unix path separator issues
         return path.rstrip('/').rsplit('/', 1)[-1] if path else "stream"
     except Exception:
         return "stream"
@@ -77,7 +79,7 @@ def iter_tar_member_bytes(
     tar_name: str,
     byte_iter: Iterable[bytes],
     *,
-    member_predicate: callable | None = None,
+    member_predicate: Callable | None = None,
 ) -> Iterator[tuple[str, Iterator[bytes]]]:
     """Stream members from a tar/tar.gz without writing to disk.
 
@@ -92,8 +94,7 @@ def iter_tar_member_bytes(
     elif tar_name.endswith(".tar"):
         mode = "r:"
 
-    tf = tarfile.open(fileobj=raw, mode=mode)
-    try:
+    with tarfile.open(fileobj=raw, mode=mode) as tf:
         for member in tf:
             if not member.isfile():
                 continue
@@ -103,8 +104,6 @@ def iter_tar_member_bytes(
             if f is None:
                 continue
             yield member.name, _iter_fileobj_bytes(f)
-    finally:
-        tf.close()
 
 
 def iter_text_lines(
@@ -115,10 +114,13 @@ def iter_text_lines(
 ) -> Iterator[str]:
     """Convert an iterable of bytes into an iterator of decoded text lines."""
     # Use incremental decoder and splitlines while preserving newlines.
-    decoder = io.TextIOWrapper(io.BufferedReader(_IterableBytesIO(byte_iter)), encoding=encoding, errors=errors)
+    decoder = io.TextIOWrapper(
+        io.BufferedReader(_IterableBytesIO(byte_iter)),
+        encoding=encoding,
+        errors=errors
+    )
     try:
-        for line in decoder:
-            yield line
+        yield from decoder
     finally:
         decoder.detach()
 
@@ -130,14 +132,15 @@ def spool_zip_to_tempfile(
 ) -> Path:
     """Spool a ZIP stream to a temporary file (ZIP requires seekable input)."""
     cfg = cfg or ExtractConfig()
-    tmp = tempfile.NamedTemporaryFile(delete=False, dir=str(cfg.zip_spool_dir) if cfg.zip_spool_dir else None, suffix=cfg.zip_spool_suffix)
-    try:
+    with tempfile.NamedTemporaryFile(
+            delete=False,
+            dir=str(cfg.zip_spool_dir) if cfg.zip_spool_dir else None,
+            suffix=cfg.zip_spool_suffix
+    ) as tmp:
         for chunk in byte_iter:
             tmp.write(chunk)
         tmp.flush()
         return Path(tmp.name)
-    finally:
-        tmp.close()
 
 
 class _IterableBytesIO(io.RawIOBase):
diff --git a/src/streaming/http_stream.py b/src/streaming/http_stream.py
index 72bf5cb..81276d0 100644
--- a/src/streaming/http_stream.py
+++ b/src/streaming/http_stream.py
@@ -56,7 +56,11 @@ def stream_http_bytes(
                     if chunk:
                         yield chunk
             return
-        except (httpx.TimeoutException, httpx.NetworkError, httpx.RemoteProtocolError, httpx.HTTPStatusError) as e:
+        except (
+                httpx.TimeoutException,
+                httpx.NetworkError,
+                httpx.RemoteProtocolError,
+                httpx.HTTPStatusError) as e:
             # Retry on network/timeouts and 5xx. For 4xx (except 429), fail fast.
             if isinstance(e, httpx.HTTPStatusError):
                 status = e.response.status_code