在 docker 文件中安装 python 包 [英] Install python package in docker file

问题描述

在我的 docker 文件中，我想安装 med2image python 包(https://github.com/FNNDSC/med2image).我使用以下代码:

来自 ubuntu:16.04运行 apt-get 更新 &&apt-get install -y --no-install-recommends python3.5python3点&&apt-get clean &&
m -rf/var/lib/apt/lists/*运行 pip 安装 nibabel pydicom matplotlib 枕头运行 pip install med2image

但是当我想构建图像时出现以下错误:

下载 https://files.pythonhosted.org/packages/6f/e5/948b023c7feb72adf7dfb26d90a13c838737bbf52be704f5ddd0878e3264/med2image-1.1.2.tar.gz命令 python setup.py egg_info 的完整输出:抱歉，仅支持 Python 3.5+.--------------------------------------命令python setup.py egg_info"失败，错误代码 1 在/tmp/pip-install-FnNb_S/med2image/命令/bin/sh -c pip install med2image"返回非零代码:1

我该怎么办?！

解决方案

推荐基础镜像

正如我在评论中所建议的，您可以编写一个如下所示的 Dockerfile:

FROM python:3运行 pip install --no-cache-dir --upgrade pip &&pip install --no-cache-dir nibabel pydicom matplotlib 枕头 &&pip install --no-cache-dir med2imageCMD [猫"，/etc/os-release"]

上面的命令示例可以在运行时(docker build --pull -t test . && docker run --rm -it test)确认这个镜像是基于 GNU/Linux 发行版Debian stable".

通用 Dockerfile 模板

最后给出一个全面的答案，请注意，关于 Python 依赖项的一个好的做法是在专用文本文件中以声明方式指定它们(按字母顺序，以方便查看和更新​​)，所以对于您的示例，您可能需要编写以下文件:

<块引用>

requirements.txt

matplotlibmed2image尼巴​​贝尔枕头pydicom

<块引用>

并使用以下通用 Dockerfile

FROM python:3工作目录/usr/src/app复制 requirements.txt ./运行 pip install --no-cache-dir --upgrade pip &&pip install --no-cache-dir -r requirements.txt复制 ..CMD [python"、./your-daemon-or-script.py"]

更准确地说，这是Docker官方镜像文档中建议的方法蟒蛇，§.如何使用这个图像

In my docker file, I want to install med2image python package (https://github.com/FNNDSC/med2image). I use the following code:

FROM ubuntu:16.04
RUN apt-get update && apt-get install -y --no-install-recommends 
    python3.5 
    python3-pip 
    && 
apt-get clean && 
rm -rf /var/lib/apt/lists/*
RUN pip install nibabel pydicom matplotlib pillow
RUN pip install med2image

But I get the following error when I want to build the image:

Downloading https://files.pythonhosted.org/packages/6f/e5/948b023c7feb72adf7dfb26d90a13c838737bbf52be704f5ddd0878e3264/med2image-1.1.2.tar.gz
Complete output from command python setup.py egg_info:
Sorry, only Python 3.5+ is supported.

----------------------------------------
Command "python setup.py egg_info" failed with error code 1 in  /tmp/pip-install-FnNb_S/med2image/
The command '/bin/sh -c pip install med2image' returned a non-zero code: 1

What should I do?!

解决方案

Recommended base image

As suggested in my comment, you could write a Dockerfile that looks like:

FROM python:3

RUN pip install --no-cache-dir --upgrade pip && 
    pip install --no-cache-dir nibabel pydicom matplotlib pillow && 
    pip install --no-cache-dir med2image

CMD ["cat", "/etc/os-release"]

And the command example above could confirm at runtime (docker build --pull -t test . && docker run --rm -it test) that this image is based on the GNU/Linux distribution "Debian stable".

Generic Dockerfile template

Finally to give a comprehensive answer, note that a good practice regarding Python dependencies consists in specifying them in a declarative way in a dedicated text file (in alphabetical order, to ease review and update) so that for your example, you may want to write the following file:

requirements.txt

matplotlib
med2image
nibabel
pillow
pydicom

and use the following generic Dockerfile

FROM python:3

WORKDIR /usr/src/app

COPY requirements.txt ./

RUN pip install --no-cache-dir --upgrade pip && 
    pip install --no-cache-dir -r requirements.txt

COPY . .

CMD [ "python", "./your-daemon-or-script.py" ]

To be more precise, this is the approach suggested in the documentation of the Docker official image python, §. How to use this image

这篇关于在 docker 文件中安装 python 包的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！