error of python module for docker and splashr - r

Question

I have installed docker and image of splash by
docker pull scrapinghub/splash
and started the container by
docker run -p 8050:8050 -p 5023:5023 scrapinghub/splash
which its result can be seen in the picture below
but, the problem is that in R after running install_splash() I receive this error:
Error: Python module docker was not found.
Detected Python configuration:
python: C:\Users\m-joudy\AppData\Local\Programs\Python\Python36\\python.exe
libpython: C:/Users/m-joudy/AppData/Local/Programs/Python/Python36/python36.dll
pythonhome: C:\Users\m-joudy\AppData\Local\Programs\Python\Python36
version: 3.6.1 (v3.6.1:69c0db5, Mar 21 2017, 18:41:36) [MSC v.1900 64 bit (AMD64)]
Architecture: 64bit
numpy: [NOT FOUND]
docker: [NOT FOUND]
python versions found:
C:\Users\m-joudy\AppData\Local\Programs\Python\Python36\\python.exe
C:\Users\m-joudy\AppData\Local\Programs\Python\PYTHON~1\\python.exe

Answer 1

From splashr's README we learn that the docker commands you used and install_splash() are alternatives, i.e. after
docker pull scrapinghub/splash
docker run -p 8050:8050 -p 5023:5023 scrapinghub/splash
you should be ready to use
library(splashr)
splash_active()
and be set to use splash via splashr. If you still want to make install_splash() work, then the error message you quoted tells us, that the python modules docker and numpy are missing. How you install python packages depends on your installation, but one poular way is to use pip, i.e.
pip install numpy
pip install docker
Potentially within a virtual environment.