Update setup.py

Author: DesmondYuan

pertbio/setup.py

@@ -17,8 +17,8 @@
     url="https://github.com/dfci/CellBox",
     packages=['pertbio'],
     python_requires='>=3.6',
-    install_requires=['tensorflow==1.15.0', 'numpy==1.16.0', 'pandas==0.24.2'],
-    tests_require=['pytest', 'pandas'],
+    install_requires=['tensorflow==1.15.0', 'numpy==1.16.0', 'pandas==0.24.2', 'scipy==1.3.0'],
+    tests_require=['pytest', 'pandas', 'numpy', 'scipy'],
     setup_requires=['pytest-runner', "pytest"],
     zip_safe=True,
     keywords='Scientific machine learning, sciML, perturbation biology, interpretability',