49 lines
1.9 KiB
Markdown
49 lines
1.9 KiB
Markdown
# What is Python?
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Python is an interpreted, interactive, object-oriented, open-source programming
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language. It incorporates modules, exceptions, dynamic typing, very high level
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dynamic data types, and classes. Python combines remarkable power with very
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clear syntax. It has interfaces to many system calls and libraries, as well as
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to various window systems, and is extensible in C or C++. It is also usable as
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an extension language for applications that need a programmable interface.
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Finally, Python is portable: it runs on many Unix variants, on the Mac, and on
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Windows 2000 and later.
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> [wikipedia.org/wiki/Python_(programming_language)](https://en.wikipedia.org/wiki/Python_(programming_language))
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%%LOGO%%
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# How to use this image
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## Create a `Dockerfile` in your Python app project
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FROM python:3-onbuild
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CMD [ "python", "./your-daemon-or-script.py" ]
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or (if you need to use Python 2):
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FROM python:2-onbuild
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CMD [ "python", "./your-daemon-or-script.py" ]
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These images include multiple `ONBUILD` triggers, which should be all you need
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to bootstrap most applications. The build will `COPY` a `requirements.txt` file,
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`RUN pip install` on said file, and then copy the current directory into
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`/usr/src/app`.
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You can then build and run the Docker image:
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docker build -t my-python-app .
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docker run -it --rm --name my-running-app my-python-app
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## Run a single Python script
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For many simple, single file projects, you may find it inconvenient to write a
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complete `Dockerfile`. In such cases, you can run a Python script by using the
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Python Docker image directly:
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docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp python:3 python your-daemon-or-script.py
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or (again, if you need to use Python 2):
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docker run -it --rm --name my-running-script -v "$(pwd)":/usr/src/myapp -w /usr/src/myapp python:2 python your-daemon-or-script.py
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