Dockerfile 安装python

方式一:
按安装包进行安装
下载python:Download Python | Python.org
卸载centos自带python2.7

RUN rpm -qa|grep python|xargs rpm -ev --allmatches --nodeps
RUN whereis python |xargs rm -frv

vim Dockerfile

RUN yum update && yum install -y sudo
RUN set -ex \
 && yum -y install zlib-devel bzip2-devel libffi-devel openssl-devel ncurses-devel sqlite-devel readline-devel tk-devel gcc make wget \
 && yum clean all \
 && mkdir /usr/local/python3 

COPY Python-3.6.9.tar.xz  /usr/local/python3/ 

RUN set -ex \
 && cd /usr/local/python3 \
 && tar -xvJf  Python-3.6.9.tar.xz \
 && cd Python-3.6.9 \
 && ./configure prefix=/usr/local/python3 \
 && make && make install \
 && ln -s /usr/local/python3/bin/python3.6 /usr/local/bin/python \
 && ln -s /usr/local/python3/bin/pip3 /usr/local/bin/pip 

RUN set -ex \
 && cd /usr/local/python \
 && python -V

RUN pip install pymysql</pre>   #自己选择安装,

如果是ubuntu,apt-get 部分修改

RUN apt-get  update && apt-get install -y sudo
RUN set -ex \
    && apt-get -y install zlib bzip2  openssl ncurses-devel sqlite-devel readline-devel tk-devel gcc make wget mesa-libGL.x86_64 lzma xz-devel python-backports-lzma\
    vim curl git \
    && apt clean all \
    && mkdir /usr/local/python3 

方式二:

RUN apt-get update && \
 DEBIAN_FRONTEND=noninteractive apt-get install --no-install-recommends -y \
 fakeroot \
 ca-certificates \
 dpkg-dev \
 g++ \
 cmake \
 python3-dev \
 openjdk-8-jdk-headless \
 libglib2.0-dev \
 libgl1-mesa-dev \
 libxrender1 \
 libgl1-mesa-glx \
 libxext-dev \
 curl vim wget git \
 && rm -rf /var/lib/apt/lists/* \
 && cd /tmp \
 && curl -O https://bootstrap.pypa.io/get-pip.py \
 && python3 get-pip.py

RUN update-alternatives --install /usr/bin/python python /usr/bin/python3 1
RUN update-alternatives --install /usr/local/bin/pip pip /usr/local/bin/pip3 1

此方法版本未知

方法三:

到hub.docker.com 查找python具体的版本进行安装

docker pull python:3.6.9

FROM python:3.6.9