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  • blog-category-djagno
  • blog-category-python
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Programming with python: Decorators

Python decorators supports aspect-oriented programming. It is used to add or modify code in functions or classes. Using decorators will provide security, tracing, looking ..etc Let see an example:

@fundecorator
def myfunc():
print "This is my function"

Vim for Python Web Development

Having a good environment setup is important for effective, fast and easy coding. We have different IDE's like eclipse, pycharm, sublime etc.. which are powerful and easy to use.

IDE's like eclipse, pycharm, sublime etc.. are resource intensive as they run many features, this is not a problem if you have really great system with powerfull resources.

Understanding Python Properties

Python Properties is a class for managing class attributes in Python. Property( ) is a built-in function that creates and returns a property object

Syntax:
attribute_name = property(get_Attribute, set_Attribute,del_Attribute(Optional), doc_Attribue(Optional))
where, get_Attritube is function to get value of the attribute,

Django Forms basics explained

Django forms is powerful module to help django application development in rendering html from model, validate input from http request to model specifications. And we can extend the module to suit our exact need. Lets see basics of django forms. Forms are a collection of fields that knows how to validate itself,Form classes are created as subclasses of django.forms.Form

Creating Django App

Django is a high-level, free and open-source Python Web framework that encourages rapid development. Django follows the model–view–controller (MVC) architectural pattern. Django's primary goal is to ease the creation of complex, database-driven websites. Django emphasizes reusability and pluggability of components, rapid development.

Event Delegation in Jquery

Event handling is the basic need to develop Rich Internet Web Applications and that will become very tough with elements added to DOM dynamically. Jquery gives simple solution to do event binding for dynamic elements under a DOM object.

QRCode generation in python

A Quick Response code(QRCode) is a two-dimensional pictographic code used for its fast readability and comparatively large storage capacity. The code consists of black modules arranged in a square pattern on a white background. The information encoded can be made up of any kind of data (e.g., binary, alphanumeric, or Kanji symbols).

Streaming Protocols continued... RTMP, MMS

Streaming is the technique for transferring data at fixed rate in real time between the client and the server. There are many streaming protocols available for streaming data. HTTP, RTSP, MMS, RTMP, RTP, MSB, MBSD, RTCP etc. are the streaming protocols.

Streaming protocols ogg, mp3, aac

Audio format is a file format for storing the digital audio data on a computer. The encoding of the audio data is done by the encoder according to the file format specifications.The data in the file may be in compressed or uncompressed format.

The audio format is categorized into three types:
1. Uncompressed audio Format:
2. Lossless Compression:
3. Lossy Compression:

Understanding Audio Quality: Bit Rate, Sample Rate

Audio Quality is the accuracy and enjoyability of the audio which the user can listen from an electronic device. Audio quality depends upon the bit rate, sample rate, file format and encoded method. It also depends on the ability of the encoder to get the important bits right.

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