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
# 下载Python3.9.5
wget https://www.python.org/ftp/python/3.9.5/Python-3.9.5.tgz
tar zxvf Python-3.9.5.tgz
# 安装必须的包
若未安装dnf,安装dnf命令如下:
前置依赖:
yum install epel-release 或者 yum install epel-release -y
安装dnf:
yum install dnf
 
dnf -y install gcc zlib* libffi-devel
cd Python-3.9.5/
 
#注意:prefix=/usr/local/python3是指定的python3.9安装目录,可设置成自己想要放的目录
./configure --prefix=/usr/local/python3 --enable-optimizations
make 
make install
# 删除原先的Python3和pip3  (让系统使用最新版本的python)
rm -rf /usr/bin/python3
ln -s /usr/local/python3/bin/python3 /usr/bin/python3
rm -rf /usr/bin/pip3
ln -s /usr/local/python3/bin/pip3 /usr/bin/pip3
posted @ 2020-03-26 17:22  浮生若夢sky  阅读(173)  评论(0编辑  收藏  举报