Install Python3 and Django under Linux and configure MySQL as the Django default server method _linux

My operating system is centos6.5.

1 First choose what database Django will use. django1.10 default database for Sqlite3, I would like to use the MySQL database, but in order to test the convenient way to install the SQLite development package.

Yum install MySQL mysql-devel
#为了测试方便, we need to install the Sqlite-devel package

2 The next need to install Python, because Python3 has become mainstream, so next we have to install Python3, to the official website to download the new version of Python3. I download the version for python3.5.2

wget https://www.python.org/ftp/python/3.5.2/Python-3.5.2.tgz

3 Decompression and Installation

# Extract TAR packets
tar XF python-3.5.2.tgz 
# into the unpacked package
CD Python-3.5.2
# Configure installation information, my installation path is/usr/install/python3/
./configure--prefix=/usr/install/python3/
# Compiles and installs make
&& make install

4 Configuring the PATH environment variable

# Create a new file under the/ect/profile.d/file python3.sh
vim/etc/profile.d/python3.sh
# Add the following phrase
export path= $PATH:/usr/ install/python3/bin/
#然后执行
export path= $PATH:/usr/install/python3/bin/

5 The Python3.5.2 is installed by default, but I want to install a newer version of PIP

# download PIP installer
wget--no-check-certificate https://bootstrap.pypa.io/get-pip.py
# install PIP
python3 get-pip.py

6 Installing Django

Pip Install Django

The 7 installation mysqlclient,mysqlclient is a Python3 connector with MySQL.

Pip Install Mysqlclient

At this point, the Python and Django Setup is complete!

How do I configure MySQL as the Django default database?

1 Create a new project

# Create a project named MySite

2 Go to this project and modify the settings configuration file

# Enter the project
CD mysite
# Modify Settings profile
vim mysite/settings.py
# Find DATABASES attribute
DATABASES = {
  ' Default ': {
    ' ENGINE ': ' Django.db.backends.mysql ',      # will MySQL as the Django default database
    ' NAME ': ' MySite ',                 # Metabase name
    ' user ': ' Root ',                  # Database user
    ' PASSWORD ': ' 123456 ',               # user password
    ' HOST ': ' 127.0.0.1 ',               # Configure the database service address, if NULL, default to localhost
    ' port ': ' 3306 ',                  # Configure Port
  }
}

3 Django does not create a database for us, we need to create the database manually.

# Start Database Services service
mysqld start
# Login to database and enter database command line interface
MySQL
# Create a database named MySite. In the settings file configuration we defined the database name as MySite
mysql>create db mysite CHARACTER Set=utf8;
# Exit Database command line interface
Mysql> quit

4 Create a new app named polls in the MySite project

[Root@bogon mysite]# python3 manage.py Startapp Polls

5 Modifying polls/models.py files

# 
Vim polls/models.py 
# Modified as follows: from

django.db import Models
# Create your models here.
Class student (models. Model):   
  name=models. Charfield (max_length=24)   
  school=models. Charfield (choices= (' sc01 ', ' first school '), (' Sc02 ', ' Secondary school '), (' sc03 ', ' third secondary school '), max_length=32)
  sfid=models. Integerfield (Primary_key=true,unique=true,)
  phone=models. Integerfield (blank=true,null=true) 
  emial=models. Emailfield (null=true,blank=true)

  def __str__ (self): return
    Self.name

If you want to understand models. Charfield () and other methods, you can refer to my article: Django in the Model field.

6 Configuring the Installed_apps property in the settings file

Installed_apps = [
  ' django.contrib.admin ',
  ' Django.contrib.auth ', '
  django.contrib.contenttypes ',
  ' django.contrib.sessions ',
  ' django.contrib.messages ', '
  django.contrib.staticfiles
  ', ' Polls.apps.PollsConfig ',    # Add the line
]

7 Notice that the models file in Django,polls has been modified.

Python3 manage.py Makemigrations Poll

8 (Skip this step) if we want to know how the modifications to polls/models.py are mapped to the database, you can use the following command:

Python3 manage.py sqlmigrate Polls 0001

9 mapping changes made to the models file to the database

Python manage.py Migrate

10 (This step can be omitted) if you want to admi in the face of a custom model to check and delete changes, need to be in the app under the admin.py file to modify.

From. Models import Student
# Registration of the student model
Admin.site.register (student)

The above is a small set for everyone to install the Linux Python3 and Django and configure MySQL as the Django Default server method All content, I hope we support cloud-Habitat Community ~