Fix deprecated asyncio.get_event_loop() and PendingDeprecationWarning

- Replace asyncio.get_event_loop() with asyncio.get_running_loop() in
  files.py (lines 277 and 331). get_event_loop() is deprecated in
  Python 3.10+ when called inside async contexts; get_running_loop()
  is the correct replacement inside async def functions.

- Replace PendingDeprecationWarning with DeprecationWarning in
  aio/chat.py and sync/chat.py (3 occurrences each). PendingDeprecationWarning
  is ignored by default Python warning filters, so users never see the
  deprecation notice. DeprecationWarning is the standard choice and is
  visible by default.

Author: gn00295120

src/xai_sdk/aio/chat.py

@@ -140,7 +140,7 @@ async def sample_batch(self, n: int) -> Sequence[Response]:
         """
         warnings.warn(
             "chat.sample_batch will be deprecated in a future version release. Use chat.sample() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )
 
@@ -236,7 +236,7 @@ async def stream_batch(self, n: int) -> AsyncIterator[tuple[Sequence[Response],
         """
         warnings.warn(
             "chat.stream_batch will be deprecated in a future version release. Use chat.stream() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )
 
@@ -423,7 +423,7 @@ async def defer_batch(
         """
         warnings.warn(
             "chat.defer_batch will be deprecated in a future version release. Use chat.defer() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )
 

src/xai_sdk/files.py

@@ -274,7 +274,7 @@ async def _async_chunk_file_from_path(
     )
 
     # Use asyncio to read file without blocking
-    loop = asyncio.get_event_loop()
+    loop = asyncio.get_running_loop()
 
     def read_chunk(f):
         return f.read(_CHUNK_SIZE)
@@ -328,7 +328,7 @@ async def _async_chunk_file_from_fileobj(
     )
 
     # Use asyncio to read file without blocking
-    loop = asyncio.get_event_loop()
+    loop = asyncio.get_running_loop()
 
     def read_chunk():
         return file_obj.read(_CHUNK_SIZE)

src/xai_sdk/sync/chat.py

@@ -137,7 +137,7 @@ def sample_batch(self, n: int) -> Sequence[Response]:
         """
         warnings.warn(
             "chat.sample_batch will be deprecated in a future version release. Use chat.sample() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )
 
@@ -229,7 +229,7 @@ def stream_batch(self, n: int) -> Iterator[tuple[Sequence[Response], Sequence[Ch
         """
         warnings.warn(
             "chat.stream_batch will be deprecated in a future version release. Use chat.stream() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )
 
@@ -409,7 +409,7 @@ def defer_batch(
         """
         warnings.warn(
             "chat.defer_batch will be deprecated in a future version release. Use chat.defer() instead.",
-            PendingDeprecationWarning,
+            DeprecationWarning,
             stacklevel=2,
         )