diff --git a/python/pyproject.toml b/python/pyproject.toml
index 695cb11..2b1f055 100644
--- a/python/pyproject.toml
+++ b/python/pyproject.toml
@@ -58,6 +58,8 @@ namespaces = false
 [tool.setuptools.package-data]
 rapidocr = [
     "**/*.yaml",
+    "**/*.pyi",
+    "py.typed",
 ]
 
 [tool.setuptools_scm]
diff --git a/python/rapidocr/__init__.py b/python/rapidocr/__init__.py
index cc622c6..c91c283 100644
--- a/python/rapidocr/__init__.py
+++ b/python/rapidocr/__init__.py
@@ -1,33 +1,36 @@
 # -*- encoding: utf-8 -*-
 # @Author: SWHL
 # @Contact: liekkaskono@163.com
+from importlib import import_module
+from typing import TYPE_CHECKING
+
 from .utils.typings import EngineType, LangCls, LangDet, LangRec, ModelType, OCRVersion
 
+if TYPE_CHECKING:
+    from .main import RapidOCR
+    from .utils.download_models import download_models
+    from .utils.load_image import LoadImageError
+    from .utils.vis_res import VisRes
+
+_LAZY_IMPORTS = {
+    "RapidOCR": ".main",
+    "LoadImageError": ".utils.load_image",
+    "VisRes": ".utils.vis_res",
+    "download_models": ".utils.download_models",
+}
+
 
 def __getattr__(name):
-    if name == "RapidOCR":
-        from .main import RapidOCR
-
-        return RapidOCR
-
-    if name == "LoadImageError":
-        from .utils.load_image import LoadImageError
-
-        return LoadImageError
-
-    if name == "VisRes":
-        from .utils.vis_res import VisRes
-
-        return VisRes
-
-    if name == "download_models":
-        from .utils.download_models import download_models
-
-        return download_models
+    if name in _LAZY_IMPORTS:
+        return getattr(import_module(_LAZY_IMPORTS[name], __name__), name)
 
     raise AttributeError(f"module {__name__!r} has no attribute {name!r}")
 
 
+def __dir__():
+    return sorted([*globals(), *__all__])
+
+
 __all__ = [
     "RapidOCR",
     "LoadImageError",
diff --git a/python/rapidocr/__init__.pyi b/python/rapidocr/__init__.pyi
new file mode 100644
index 0000000..21c8988
--- /dev/null
+++ b/python/rapidocr/__init__.pyi
@@ -0,0 +1,14 @@
+from typing import List
+
+from .main import RapidOCR as RapidOCR
+from .utils.download_models import download_models as download_models
+from .utils.load_image import LoadImageError as LoadImageError
+from .utils.typings import EngineType as EngineType
+from .utils.typings import LangCls as LangCls
+from .utils.typings import LangDet as LangDet
+from .utils.typings import LangRec as LangRec
+from .utils.typings import ModelType as ModelType
+from .utils.typings import OCRVersion as OCRVersion
+from .utils.vis_res import VisRes as VisRes
+
+__all__: List[str]
diff --git a/python/rapidocr/py.typed b/python/rapidocr/py.typed
new file mode 100644
index 0000000..e69de29