scimax / python-core-windows

Python 3.6.0 and PIP 9.0.1 running in a Window Nano Server Docker container

python-core-windows

Windows Server Core container running python 3.6.0 and pip 9.0.1. The docker image is based on the Windows Nano Server for python by lbates2000. The nano server was replaced with the server core container as the ctypes library for foreign functions does not work properly.

Issue with the nano server

The following snippet is a minimum code required to reproduce the problem based on __init__.py in the comtypes module:

from ctypes import *
import sys
COINIT_APARTMENTTHREADED = 0x2
_ole32 = oledll.ole32
flags = getattr(sys, "coinit_flags", COINIT_APARTMENTTHREADED)
_ole32.CoInitializeEx(None, flags)

The traceback reports

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "_ctypes/callproc.c", line 918, in GetResult
OSError: [WinError -2147467263] Not implemented

Unfortunately, using the windows core server instead of the nano server blows up the size of the container by 10GB. But ctypes works with this container base.

Build

After cloning the repository from github run:

docker build -t python-core-windows .

Usage

This was built by installing Python on a Windows 10 x64 machine and then copying the installation to the container and setting the python path.

You can run it interactively

docker run -it python-windows

or you can use it as a base for another container, as well as upgrade PIP and install additional Python modules, by adding the appropriate commands to the new container's Dockerfile.

For example:

FROM python-windows:latest

ENV APP_DIR C:/apps
ADD requirements.txt $APP_DIR/requirements.txt
WORKDIR $APP_DIR

RUN \
	python -m pip install --upgrade pip && \
	python -m pip install -r requirements.txt

ENTRYPOINT ["C:\\Python\\python.exe"]

Container is hosted on Docker Hub:

https://hub.docker.com/r/scimax/python-core-windows/

docker pull scimax/python-core-windows