30 September, 2014

Jython - Things to know about

Jython, an open source, implements the Python programming language that is integrated with the Java platform. To run this object-oriented and dynamic language a programmer has to compile Python source code with Java bytecode. When a programmer integrates Python and Java, it gives him an access to all the Java libraries. By using the libraries, Applets and JavaBeans can be used by assigning the classes of any of these languages as sub-classes under the other. Jython is written in Java and seamlessly integrates Python so that it can run on any Java platform. It has been designed to perform various kinds of tasks, like, embedded scripting. Its original version was known as JPython in 1997. Jython 2.0 is a later version that has been developed through a combined volunteer effort and it is available without any cost for both non-commercial and commercial uses.

So what should the programmers know about Jython? In order to work comfortably with this programming language it is imperative that they are aware of its benefits. Jython is distributed with the source code. Its foremost advantage is that it can be used in embedded scripting. Jython libraries can be added to the systems of the Java programmers so that the end users are enabled to write both simple as well as complicated scripts. This helps to add more functionality to the application.

Secondly, this programming language offers an interactive interpreter which can be used to interact with running Java apps or packages. This helps the programmers to carry out experiments and debug any kind of system. This can also be applied for rapid application development. The Python programs are 2-10 times shorter than an equivalent Java programs which results in increased programmer productivity. The easy interaction between them enables the developers to mix these two languages without any hassles during the development and shipping of products.

By using the language the programmers will find that number of code lines has decreased by almost fifty percent. It is considered that shorter codes have fewer bugs. As a result the programs developed using Jython are faster and with less number of bugs. Although Java has its uses yet it is inflexible and verbose. However, the difference between Python and Java codes allows them to be used in dynamic typing. When Python is used within the Jython scripting language there are several advantages. For instance, the former language is quite readable. Thus the syntax is clean and easy to read. Even if you have to go back to the code after a span of five or six months, there will be no trouble in comprehending it.

Jython does not need every code within the class system. Rather it separates the package organization from class definition. It can also include a valid statement as well as a normal program code. Besides being helpful for short scripts, such non interference also proves to be effective for distributing a bunch of classes together.

There are high level collection classes that are quite similar to Java’s dictionary and map classes. Since these are built within the language, they are easy to deal with. The behaviour of modules, classes as well as instances is similar. Such a consistency ensures that the behaviour of the Python programs is easy to read.

When compared to Java there are certain areas where Jython scores. In the arena of web programming it has evolved as the most popular server side web application tool. However, when the code for application is actually being written, it becomes a problem. In this regards, Jython comes across as a web language that is more powerful than Tea or WebMarco. In addition there are different kinds of programs which require rapid development. But the Java languages, like, C++ was not developed to meet this end. This is one of the reasons why Jython was later developed.

However, it would be wrong Jython just as a tool that can make up for the drawbacks for Java or Python. It is a powerful tool that is employed for its usability.

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