• 1.django 环境搭建


    1.安装python

    参考:


    yum update -y
    yum -y groupinstall "Development tools"
    yum install openssl-devel bzip2-devel expat-devel gdbm-devel readline-devel sqlite-devel psmisc libffi-devel
    cd /usr/local
    wget https://www.python.org/ftp/python/3.6.6/Python-3.6.6.tgz
    tar -zxvf Python-3.6.6.tgz
    cd Python-3.6.6
    ./configure --prefix=/usr/local/python3
    make
    make install
    ln -s /usr/local/python3/bin/python3.6 /usr/bin/python3
    ln -s /usr/local/python3/bin/pip3.6 /usr/bin/pip3
    
    # 修改pip源
    cd ~
    mkdir .pip
    cd .pip
    vim pip.conf
    
    #进入后添加以下内容,保存退出.
    [global]
    index-url = https://mirrors.aliyun.com/pypi/simple
    

    2.安装虚拟环境

    pip3 install virtualenv -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
    ln -s /usr/local/python3/bin/virtualenv /usr/bin/virtualenv
    

    3.创建虚拟环境

    [root@localhost /]# mkdir /django
    [root@localhost /]# cd /django
    [root@localhost django]# mkdir day01
    [root@localhost django]# virtualenv env_py3 --python=/usr/bin/python3  # mkvirtualenv env_py3 -p /usr bin/python3
    [root@localhost django]# cd env_py3/bin
    [root@localhost bin]# source activate        #启动虚拟环境
    (env_py3) [root@localhost bin]#              #成功进入虚拟环境
    (env_py3) [root@localhost bin]# deactivate   #退出虚拟环境
    [root@localhost bin]# 
    
    

    4.虚拟环境安装django和uwsgi

    (env_py3) [root@localhost bin]# pip3 install django==2.2 -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
    (env_py3) [root@localhost bin]# pip3 install django==1.11 -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
     #(如果用于生产的话,则需要指定安装和你项目相同的版本)
    (env_py3) [root@localhost bin]# pip3 install uwsgi -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
    

    5.创建项目

    (env_py3) [root@localhost django]# cd day01/
    (env_py3) [root@localhost day01]# tree
    (env_py3) [root@localhost day01]# django-admin startproject HelloDjango
    (env_py3) [root@localhost day01]# cd /django/day01/HelloDjango
    (env_py3) [root@localhost day01]# python manage.py startapp App
    #报错: 需要升级centos7自带得SQLite
    #django.core.exceptions.ImproperlyConfigured: SQLite 3.8.3 or later is required (found 3.7.17).
    (env_py3) [root@localhost day01]# 
    -------------------------------------------------------------------------------------
    在 centos 7 上面运行 django 2.2 开发服务器时出现:
    django.core.exceptions.ImproperlyConfigured: SQLite 3.8.3 or later is required (found 3.7.17).
    原因时系统自带 sqlite3 版本太低,解决方法是升级就可以了。
    升级:
    # 下载源码
    wget https://www.sqlite.org/2019/sqlite-autoconf-3290000.tar.gz
    # 编译
    tar zxvf sqlite-autoconf-3290000.tar.gz 
    cd sqlite-autoconf-3290000/
    ./configure --prefix=/usr/local
    make && make install
    # 替换系统低版本 sqlite3
    mv /usr/bin/sqlite3  /usr/bin/sqlite3_old
    ln -s /usr/local/bin/sqlite3   /usr/bin/sqlite3
    echo "/usr/local/lib" > /etc/ld.so.conf.d/sqlite3.conf
    ldconfig
    sqlite3 -version
    
    import sqlite3
    sqlite3.sqlite_version
    再次启动运行 django 2.2 开发服务器就 ok 了。
    --------------------------------------------------------------------------------------
    

    6.pycharm下载

    Linux版下载地址:
    https://download.jetbrains.8686c.com/python/pycharm-community-2019.3.4.tar.gz
    [root@localhost local]#  cd /usr/local
    [root@localhost local]# tar -zxvf pycharm-community-2019.3.4.tar.gz
    [root@localhost local]# cd /bin
    [root@localhost local]# ./pycharm.sh
     ---图形化安装过程省略----
    [root@localhost local]# ln -s /usr/local/pycharm-community-2019.3.4/bin/pycharm.sh /usr/local/bin/pycharm
    

    7.pycharm打开工程

    1.打开/data/projects/day01/HelloDjango,注意pycharm里面不能打开工程的上一级,
    2.修改工程的python:
        - 选择工程-文件-settings-Project(工程名称)-project interpreter
        - 点击project interpreter右侧设置图标-show all - add - Virtual Environment - Exisiting Environment -选择我们创建的虚拟环境/data/envs/dj111/bin/python3,勾选make avaliable to all projects.-保存。
        - 选择新建的interpreter,然后保存退出。
    
    

    8.pycharm 安装database 插件

       参考:https://blog.csdn.net/liushuijingying2/article/details/80694690
       社区版没有数据库插件,可以安装Database Navigator插件
        1、Pycharm内部设置安装: File →Settings→Plugins→搜索框中输入Database Navigator→下载插件→安装完成重启Pycharm。
        2、手动安装:                   打开PyCharm Plugins官网并搜索Database Navigator→确认安装的Pycharm版本→下载版本对应的Database Navigator压缩包→在Pycharm中安装压缩包→重启Pycharm。
                                       https://plugins.jetbrains.com/pycharm
    

    9.配置mysql连接

    #修改项目下的settings.py
    DATABASES = {
        'default': {
            # 'ENGINE': 'django.db.backends.sqlite3',
            # 'NAME': os.path.join(BASE_DIR, 'db.sqlite3'),
            'ENGINE': 'django.db.backends.mysql',
            'NAME': 'dj111',
            'USER': 'root',
            'PASSWORD':'Ora123456',
        }
    }
    
    #修改项目的__init__.py添加:
    import pymysql
    pymysql.install_as_MySQLdb()         #python2.x不需要伪装 python3.x需要伪装
    
    #安装驱动pymysql
    (env_py3) [root@localhost day01]# pip install pymysql -i http://pypi.douban.com/simple/ --trusted-host pypi.douban.com
    
    #执行迁移
    (env_py3) [root@localhost day01]# python manage.py migrate
    
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  • 原文地址:https://www.cnblogs.com/skyan/p/12566108.html
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