django syntax

create django 1.8.3 project "mysite" and project app "myapp" (for pythonanywhere.com hosting)
edit mysite/settings.py
create model for using "db.sqlite3"
prepare and test mysite myapp
deploy "mysite" project on pythonanywhere.com server
additional syntax

create django 1.8.3 project "mysite" and project app "myapp" (for pythonanywhere.com hosting)

django-admin.py startproject mysite && cd mysite

python manage.py startapp myapp

pythoncachekiller.py

pythontreecompiler.py

edit mysite/settings.py

BASE_DIR = os.path.dirname(os.path.dirname(__file__))+os.sep
TEMPLATE_DIRS = (
'/home/mysite/tmps', # for pythonanywhere.com(add manual into static files sector "WEB" tab of gui) or local linux
'C:/django/tmps/mysite', # local windows
)
# DIRS can be part of other object(TEMPLATE), with different structure
DEBUG = True # must be False in product version or site will be auto blocked !!!
TEMPLATE_DEBUG = True # must be False in product version or site will be auto blocked !!!
ALLOWED_HOSTS = ['mysite.pythonanywhere.com']
# ALLOWED_HOSTS = ['mysite.pythonanywhere.com','localhost', '127.0.0.1'] # must be commented in server version
# local host for template debug, in case of "DEBUG = False TEMPLATE_DEBUG = False" or will error
# локальный хост для проверки шаблонов и т.п. при отключенном дебаге,а то ошибку выдает
INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    # 'django.contrib.sessions',
    # 'django.contrib.messages',
    'django.contrib.staticfiles',
    'myapp',
)
MIDDLEWARE_CLASSES = (
    'django.middleware.gzip.GZipMiddleware',
    'django.middleware.common.CommonMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
    # 'django.contrib.sessions.middleware.SessionMiddleware',
    # 'django.middleware.csrf.CsrfViewMiddleware',
    # 'django.contrib.auth.middleware.AuthenticationMiddleware',
    # 'django.contrib.auth.middleware.SessionAuthenticationMiddleware',
    # 'django.contrib.messages.middleware.MessageMiddleware',
    # 'django.middleware.security.SecurityMiddleware',
)
USE_TZ = False
STATIC_URL = '/static/'
STATIC_ROOT = os.path.join(BASE_DIR, 'static')+os.sep
SITE_ROOT = os.path.dirname(os.path.realpath(__file__))+os.sep
STATICFILES_DIRS=(
os.path.join(SITE_ROOT, 'static')+os.sep,
)

create model for using "db.sqlite3"

from django.db import models

# Create your models here.

class Myappmodel(models.Model):
    u_id = models.AutoField(primary_key=True) # auto-incrementing primary key ,
if model have not at least one "model.AutoField(primary_key=True)" then
will be created django automatically as "id = models.AutoField(primary_key=True)"
    u_float = models.FloatField() # десятичное с плавающей точкой
    u_intbig = models.BigIntegerField() # большое целое
    u_int = models.IntegerField() # целое
    u_text = models.CharField(max_length=16) # текстовое поле
    u_datetime = models.DateTimeField(auto_now=True) # python datetime.datetime analog,
"auto_now=True" will refresh this field value every object save(for example
"u=Myappmodel.objects.get(id=int("u_id int number string") ,u_int=int("number string"))
u.u_int=123; u.save()" )
    u_bool = models.BooleanField()

from datetime import datetime,timedelta #time period calculating (if older then 30 days then delete)
from django.http import HttpResponse # just return string data, not use template.html etc
from django.shortcuts import render_to_response # full page return method
import os
os.chdir(os.path.dirname(os.path.abspath(__file__)))
from myapp models import Myappmodel

def index(request,var1,var2="show"):
    x=request.POST.copy() # dict with incoming data in string format
    u=Myappmodel.objects.get(u_id=int(x["u_id"]))
    u.u_int=int(x["u_int"])
    u.save()
    # delete all objects older then 30 days
    Myappmodel.objects.filter(u_datetime__lte=(datetime.now()-timedelta(days=30))).delete()
    # get all data
    ux=Myappmodel.objects.all()
    # reverse sorting from big to small use u_int model field
    ux=ux.order_by("-u_int")
    
    html="Hello, world. You're at the myapp index.\n<br>test data sorting"
    for u in ux: html+="\n<br>"+str(u.u_int)
    if var2=="hide": return HttpResponse(html) # return without template.html
    else:
        temp="index.html"
        serverdate=str(datetime.now().date())
        return render_to_response(temp,{"html":html,"serverdate":serverdate})

<html>
<head>
    <meta content="text/html; charset=UTF-8" http-equiv="Content-Type">
    {% load static from staticfiles %}
    {% static "style.css" as stylecss %}
    {% static "logo.svg" as logo %}
    <link rel="stylesheet" href="{{stylecss|default:'0.0'}}" type="text/css">
    <title>Example template index.html</title>
</head>
<body>
server date: {{serverdate}}
<br>Sorted testing data order_by
{{ html|safe }}
</body>
</html>

from django.conf.urls import url

from . import views

urlpatterns = [
    url(r'^$', views.index,{'var1': 'string value of var1','var2':'value'}, name='index'),
]

extra options

from django.conf.urls import include, url
from django.contrib import admin

urlpatterns = [
    url(r'^myapp/', include('myapp.urls')),
    url(r'^admin/', include(admin.site.urls)),
]

prepare and test mysite myapp

python manage.py makemigrations

python manage.py migrate

python manage.py runserver

http://localhost:8000/myapp/

deploy "mysite" project on pythonanywhere.com server

unzip my.zip

DEBUG = False
TEMPLATE_DEBUG = False
ALLOWED_HOSTS = ['mysite.pythonanywhere.com'] # where "mysite" is your pythonanywhere.com log in name

https://docs.djangoproject.com/en/1.8/

additional syntax

ls | grep -v db.sqlite3 | xargs rm -rfv

cd C:\django && django-admin.py startproject mysite

cd C:\django\mysite && manage.py shell

cd C:\django\mysite && manage.py runserver

cd /D d: