Include scipy dependency for completeness

Reviewed By: rbgirshick

Differential Revision: D6875655

fbshipit-source-id: 9c19510ff5c402bef2d947d95d061a5d51e57e9a

INSTALL.md

@@ -36,7 +36,7 @@ If the `caffe2` Python package is not found, you likely need to adjust your `PYT
 Install Python dependencies:
 
 ```
-pip install numpy>=1.13 pyyaml>=3.12 matplotlib opencv-python>=3.2 setuptools Cython mock
+pip install numpy>=1.13 pyyaml>=3.12 matplotlib opencv-python>=3.2 setuptools Cython mock scipy
 ```
 
 Install the [COCO API](https://github.com/cocodataset/cocoapi):

docker/Dockerfile

@@ -8,7 +8,7 @@ ENV PYTHONPATH /usr/local/caffe2_build:${PYTHONPATH}
 ENV LD_LIBRARY_PATH /usr/local/caffe2_build/lib:${LD_LIBRARY_PATH}
 
 # Install Python dependencies
-RUN pip install numpy>=1.13 pyyaml>=3.12 matplotlib opencv-python>=3.2 setuptools Cython mock
+RUN pip install numpy>=1.13 pyyaml>=3.12 matplotlib opencv-python>=3.2 setuptools Cython mock scipy
 
 # Install the COCO API
 RUN git clone https://github.com/cocodataset/cocoapi.git /cocoapi