2.7.10,2.7,2(2.7/Dockerfile)2.7.10-onbuild,2.7-onbuild,2-onbuild(2.7/onbuild/Dockerfile)2.7.10-slim,2.7-slim,2-slim(2.7/slim/Dockerfile)2.7.10-wheezy,2.7-wheezy,2-wheezy(2.7/wheezy/Dockerfile)3.2.6,3.2(3.2/Dockerfile)3.2.6-onbuild,3.2-onbuild(3.2/onbuild/Dockerfile)3.2.6-slim,3.2-slim(3.2/slim/Dockerfile)3.2.6-wheezy,3.2-wheezy(3.2/wheezy/Dockerfile)3.3.6,3.3(3.3/Dockerfile)3.3.6-onbuild,3.3-onbuild(3.3/onbuild/Dockerfile)3.3.6-slim,3.3-slim(3.3/slim/Dockerfile)3.3.6-wheezy,3.3-wheezy(3.3/wheezy/Dockerfile)3.4.3,3.4,3,latest(3.4/Dockerfile)3.4.3-onbuild,3.4-onbuild,3-onbuild,onbuild(3.4/onbuild/Dockerfile)3.4.3-slim,3.4-slim,3-slim,slim(3.4/slim/Dockerfile)3.4.3-wheezy,3.4-wheezy,3-wheezy,wheezy(3.4/wheezy/Dockerfile)3.5.0b3,3.5.0,3.5(3.5/Dockerfile)3.5.0b3-onbuild,3.5.0-onbuild,3.5-onbuild(3.5/onbuild/Dockerfile)3.5.0b3-slim,3.5.0-slim,3.5-slim(3.5/slim/Dockerfile)
For more information about this image and its history, please see the relevant manifest file (library/python) in the docker-library/official-images GitHub repo.
Python is an interpreted, interactive, object-oriented, open-source programming language. It incorporates modules, exceptions, dynamic typing, very high level dynamic data types, and classes. Python combines remarkable power with very clear syntax. It has interfaces to many system calls and libraries, as well as to various window systems, and is extensible in C or C++. It is also usable as an extension language for applications that need a programmable interface. Finally, Python is portable: it runs on many Unix variants, on the Mac, and on Windows 2000 and later.
FROM python:3-onbuild
CMD [ "python", "./your-daemon-or-script.py" ]
or (if you need to use Python 2):
FROM python:2-onbuild
CMD [ "python", "./your-daemon-or-script.py" ]
These images include multiple ONBUILD triggers, which should be all you need to bootstrap most applications. The build will COPY a requirements.txt file, RUN pip install on said file, and then copy the current directory into /usr/src/app.
You can then build and run the Docker image:
docker build -t my-python-app .
docker run -it --rm --name my-running-app my-python-app
For many simple, single file projects, you may find it inconvenient to write a complete Dockerfile. In such cases, you can run a Python script by using the Python Docker image directly:
docker run -it --rm --name my-running-script -v "$PWD":/usr/src/myapp -w /usr/src/myapp python:3 python your-daemon-or-script.py
or (again, if you need to use Python 2):
docker run -it --rm --name my-running-script -v "$PWD":/usr/src/myapp -w /usr/src/myapp python:2 python your-daemon-or-script.py
The python images come in many flavors, each designed for a specific use case.
This is the defacto image. If you are unsure about what your needs are, you probably want to use this one. It is designed to be used both as a throw away container (mount your source code and start the container to start your app), as well as the base to build other images off of. This tag is based off of buildpack-deps. buildpack-deps is designed for the average user of docker who has many images on their system. It, by design, has a large number of extremely common Debian packages. This reduces the number of packages that images that derive from it need to install, thus reducing the overall size of all images on your system.
This image makes building derivative images easier. For most use cases, creating a Dockerfile in the base of your project directory with the line FROM python:onbuild will be enough to create a stand-alone image for your project.
While the onbuild variant is really useful for "getting off the ground running" (zero to Dockerized in a short period of time), it's not recommended for long-term usage within a project due to the lack of control over when the ONBUILD triggers fire (see also docker/docker#5714, docker/docker#8240, docker/docker#11917).
Once you've got a handle on how your project functions within Docker, you'll probably want to adjust your Dockerfile to inherit from a non-onbuild variant and copy the commands from the onbuild variant Dockerfile (moving the ONBUILD lines to the end and removing the ONBUILD keywords) into your own file so that you have tighter control over them and more transparency for yourself and others looking at your Dockerfile as to what it does. This also makes it easier to add additional requirements as time goes on (such as installing more packages before performing the previously-ONBUILD steps).
This image does not contain the common packages contained in the default tag and only contains the minimal packages needed to run python. Unless you are working in an environment where only the python image will be deployed and you have space constraints, we highly recommend using the default image of this repository.
View license information for Python 2 and Python 3.
This image is officially supported on Docker version 1.8.0.
Support for older versions (down to 1.0) is provided on a best-effort basis.
Documentation for this image is stored in the python/ directory of the docker-library/docs GitHub repo. Be sure to familiarize yourself with the repository's README.md file before attempting a pull request.
If you have any problems with or questions about this image, please contact us through a GitHub issue.
You can also reach many of the official image maintainers via the #docker-library IRC channel on Freenode.
You are invited to contribute new features, fixes, or updates, large or small; we are always thrilled to receive pull requests, and do our best to process them as fast as we can.
Before you start to code, we recommend discussing your plans through a GitHub issue, especially for more ambitious contributions. This gives other contributors a chance to point you in the right direction, give you feedback on your design, and help you find out if someone else is working on the same thing.