WebHub--Facilitating Web Development

What is Fabric? Fabric is a Python (2.5 or higher) library and command-line tool for streamlining the use of SSH for application deployment or systems administration tasks. More specifically, Fabr

My Overview of Django Framework

This code snippet is used to generate the unit test of Java codes.

In Ruby language, the return statement in the Ruby functions are interesting, Let's explore them as below:

Ruby has its own style to define the abstract methods in its class.

Singleton is one design pattern in the software engineering. Ruby has its own special feature to declare singleton class

Scope defines where in a program a variable is accessible. Ruby has four types of variable scope, local, global, instance and class.

如何利用haproxy和keepalived 配置负载均衡？

Python是如何创建类的？

How to unpack and pack collection in Python?

This post demonstrates how to use try clause to handle the exceptions.

This post tells you how to install the mix of vagrant and virtualbox on ubuntu.

How the BOSH works?

How to write HOT?

This recipe is a small code snippet of showing how to distinguish attribute and item in Python language.

In the model layer, the Model class is the base class while the ModelBase class is metaclass. They are the entry points of the whole model layer

This essay is aimed to articulate the usage of attributes in Python language

In this blog, i will tell you how to use Pyramid by codes.

The follow code snippets show how to use variables smartly.

The difference between shallow and deep copying is only relevant for compound objects (objects that contain other objects, like lists or class instances).

How to use Sqlite as the database in Python?

A view is a callable which takes a request and returns a response. This can be more than just a function, and Django provides an example of some classess wich can be used as views.These allow you to s

TEMPLATE_DIRS = ( os.path.join(os.path.dirname(__file__), 'templates').replace('\\','/'), ) TEMPLATE_LOADERS = ( 'django.template.loaders.app_directories.Loader', 'django.template.loaders

Simple codes for Django applicaiton

In this recipe, i will describe how to use TDD method to developer Flask application.

from sqlalchemy import create_engine,ForeighKey from sqlalchemy import Column,Date, Integer, String from sqlalchemy.ext.declarative import declarative_base from sqlalchemy.orm import relationship, bac

import os import sys import logging import logging.handlers DEFAULT_LOG_LEVEL = logging.DEBUG LOG_DIR = 'logs' LOG_FILENAME = 'server.log' def init_logging(): try: if not os.path.exists(LOG_DIR):

from unittest import TestCase, main class OutcomesTest(TestCase): def test_fail(self): self.assertTrue(True) def test_error(self): raise RuntimeError('Test error') def test_pass(self): se

from sqlalchemy.orm.attributes import InstrumentedAttribute import datetime class JsonUtils: entity_superclass = 'sqlalchemy.ext.declarative.Base' def __init__(self, depth=1): se

class User: exposed = True @cherrypy.expose @cherrypy.tools.json_out(content_type='application/json') def get(self, id=None): json = utils.JsonUtils(depth=1) if id

This post gives the guide of how to use sqlalchemy's engine, session and query API and change the results into JSON format.

In this article, i write a simple code example to explore how to use super,new,init and str magic method in Python.

Commands in Django

The import utilities in Python Standard Library

Importing Python Modules

The project structure in Django

This code recipe gives you an idea of how to use Flask-Admin with postgresql database.