Installation

Django can be obtained in several ways

  • directly from the project homepage http://djangoproject.com

  • if you are using Linux, you can install Django from your package repository

  • installing withpip- tool for installing Python packages - recommended option

The recommended way of installation is to usevirtualenv, orpyvenvto isolate application specific dependencies from a shared Python installation.

[info] For info

Use this for infomation messages.

#include <stdio.h>
int main(){
   printf("kurnik");
}

Creating virtual environment

Create new directory for your project and runvirtualenvinside:

$ mkdir project/
$ cd project/
$ virtualenv env

Activate the environment

$ source env/bin/activate
(env)$

After activation, the$PATHenvironment variable has changed:

(env)$ echo $PATH
/.../env/bin:/usr/local/bin:/usr/local/sbin:/usr/bin:...

Note: It is not neccessary to activate environment. In this case you have to type path to the tool you want to use in environment manualy:

$ env/bin/python

Installing django with pip

First, search for django in PyPI package database:

(env) $ pip search django

The list will contain all the entries, where the text “django” is located in the name or description of the package.

To install django, type:

(env) $pip install django
Downloading/unpacking django
Downloading Django-1.6.5-py2.py3-none-any.whl (6.7MB): 6.7MB downloaded
Installing collected packages: django
Successfully installed django
Cleaning up…
(env) $

Comment: To show info about currently installed packages, use infooption for pipcommand:

(env) $ pip show django
Name: Django
Version: 1.6.5
Location: /home/mirek/Documents/kurzy/python/django/env/lib/python2.7/site-packages
Requires:**
(env) $

Note: It is possible to install concrete version of package. For example - to install version 1.5.1 of django, type:

(env) $pip install django=='1.5.1'

Checking installation

To check, if Django is installed, open Python’s interactive shell and type:

(env) $ipython

>>>import django

>>>django.get_version()

'1.6.5'

Creating a project

After installation,django-admin.pycommand is available in theenv/bin/directory.django-adminisDjango’scommand-line utility for administrative tasks.It has several commands, which you can use for project manipulation.

In the case of project creation, use commandstartprojectfollowing with the name of newly created project:

(env) $ django-admin.py startproject megaproject

New project will be created in the directory with the name of your project. Let’s examine the project structure:

(env) $ tree megaproject
mysite/
├── manage.py
└── mysite
├── __init__.py
├── settings.py
├── urls.py
└── wsgi.py
1 directory, 5 files

These files are:

  • The outermysite/root directory is just a container for your project. Its name doesn’t matter to Django; you can rename it to anything you like.

  • manage.py: A command-line utility that lets you interact with thisDjangoproject in various ways.

  • The innermysite/directory is the actualPythonpackage for your project. Its name is thePythonpackage name you’ll need to use to import anything inside it (e.g.mysite.urls).

  • mysite/__init__.py: An empty file that tellsPythonthat this directory should be considered a Python package.

  • mysite/settings.py: Settings/configuration for thisDjangoproject.

  • mysite/urls.py: The URL declarations for this Django project; a “table of contents” of your Django-powered site.

mysite/wsgi.py

: An entry-point for WSGI-compatible web servers to serve your project.

Running the project

Django comes with development web server - lightweight web server written in pure Python for rapid development purposes. To start the web server with the project, run manage.pyfrom the mysite/directory with the following syntax:

(env) $ python manage.py runserver
Validating models...
0 errors found
August 08, 2014 - 18:51:55
Django version 1.6.5, using settings mysite.settings'
Starting development server at 
http://127.0.0.1:8000/

Quit the server with CONTROL-C.

By accessing thehttp://127.0.0.1:8000/URL you will see the Django’s welcome page.

Note:The built-in web server is for development purposes only! Don’t use it in the production!

To change port, pass the port number as another argument:.

(env) $python manage.py runserver 4000

To change the server IP address to listen for all public connections, pass it as parameter:

(env) $python manage.py runserver 0.0.0.0:1234

Note:If your code changes, the web server reloads your code automatically. Open’n’Save one of the files of the project to see web server will reload the project.

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