Fix find_packages

setup.py

@@ -1,4 +1,4 @@
-from setuptools import setup
+from setuptools import setup, find_packages
 
 setup(
     name='extract_cp',
@@ -7,7 +7,7 @@
     author='Jennings Zhang',
     author_email='[email protected]',
     url='https://github.com/FNNDSC/pl-fetal-cp-surface-extract',
-    packages=['extract_cp'],
+    packages=find_packages(exclude=['tests']),
     install_requires=['chris_plugin', 'loguru', 'pycivet', 'pybicpl', 'numpy'],
     license='MIT',
     entry_points={