Fix setup

setup.py

@@ -32,7 +32,7 @@ setuptools.setup(
     long_description=LONG_DESCRIPTION,
     long_description_content_type="text/plain",
     url="https://github.com/PaddlePaddle/PaddleRS",
-    packages=setuptools.find_packages(),
+    packages=setuptools.find_packages(include=['paddlers', 'paddlers.*']),
     python_requires='>=3.7',
     setup_requires=['cython', 'numpy'],
     install_requires=REQUIRED_PACKAGES,