Added deprecation warnings for mlm_* arguments.

src/markitdown/_markitdown.py

@@ -15,7 +15,7 @@
 import zipfile
 from typing import Any, Dict, List, Optional, Union
 from urllib.parse import parse_qs, quote, unquote, urlparse, urlunparse
-from warnings import catch_warnings
+from warnings import warn, resetwarnings, catch_warnings
 
 import mammoth
 import markdownify
@@ -44,6 +44,8 @@
     IS_AUDIO_TRANSCRIPTION_CAPABLE = True
 except ModuleNotFoundError:
     pass
+finally:
+    resetwarnings()
 
 # Optional YouTube transcription support
 try:
@@ -1008,14 +1010,46 @@ def __init__(
         self,
         requests_session: Optional[requests.Session] = None,
         llm_client: Optional[Any] = None,
-        llm_model: Optional[Any] = None,
+        llm_model: Optional[str] = None,
         style_map: Optional[str] = None,
+        # Deprecated
+        mlm_client: Optional[Any] = None,
+        mlm_model: Optional[str] = None,
     ):
         if requests_session is None:
             self._requests_session = requests.Session()
         else:
             self._requests_session = requests_session
 
+        # Handle deprecation notices
+        #############################
+        if mlm_client is not None:
+            if llm_client is None:
+                warn(
+                    "'mlm_client' is deprecated, and was renamed 'llm_client'.",
+                    DeprecationWarning,
+                )
+                llm_client = mlm_client
+                mlm_client = None
+            else:
+                raise ValueError(
+                    "'mlm_client' is deprecated, and was renamed 'llm_client'. Do not use both at the same time. Just use 'llm_client' instead."
+                )
+
+        if mlm_model is not None:
+            if llm_model is None:
+                warn(
+                    "'mlm_model' is deprecated, and was renamed 'llm_model'.",
+                    DeprecationWarning,
+                )
+                llm_model = mlm_model
+                mlm_model = None
+            else:
+                raise ValueError(
+                    "'mlm_model' is deprecated, and was renamed 'llm_model'. Do not use both at the same time. Just use 'llm_model' instead."
+                )
+        #############################
+
         self._llm_client = llm_client
         self._llm_model = llm_model
         self._style_map = style_map

tests/test_markitdown.py

@@ -6,6 +6,8 @@
 import pytest
 import requests
 
+from warnings import catch_warnings, resetwarnings
+
 from markitdown import MarkItDown
 
 skip_remote = (
@@ -243,6 +245,40 @@ def test_markitdown_exiftool() -> None:
         assert target in result.text_content
 
 
+def test_markitdown_deprecation() -> None:
+    try:
+        with catch_warnings(record=True) as w:
+            test_client = object()
+            markitdown = MarkItDown(mlm_client=test_client)
+            assert len(w) == 1
+            assert w[0].category is DeprecationWarning
+            assert markitdown._llm_client == test_client
+    finally:
+        resetwarnings()
+
+    try:
+        with catch_warnings(record=True) as w:
+            markitdown = MarkItDown(mlm_model="gpt-4o")
+            assert len(w) == 1
+            assert w[0].category is DeprecationWarning
+            assert markitdown._llm_model == "gpt-4o"
+    finally:
+        resetwarnings()
+
+    try:
+        test_client = object()
+        markitdown = MarkItDown(mlm_client=test_client, llm_client=test_client)
+        assert False
+    except ValueError:
+        pass
+
+    try:
+        markitdown = MarkItDown(mlm_model="gpt-4o", llm_model="gpt-4o")
+        assert False
+    except ValueError:
+        pass
+
+
 @pytest.mark.skipif(
     skip_llm,
     reason="do not run llm tests without a key",
@@ -267,4 +303,5 @@ def test_markitdown_llm() -> None:
     test_markitdown_remote()
     test_markitdown_local()
     test_markitdown_exiftool()
+    test_markitdown_deprecation()
     test_markitdown_llm()