By Alan Harris
IronPython represents a distinct path for builders attracted to operating with dynamic languages in the .NET Framework. even if you?re trying to strengthen purposes from scratch or upload performance and maintainability to an present software, IronPython opens many doorways whereas supplying a high?speed, high?performance language that integrates tightly with different .NET languages.
* learn how to create functions utilizing some great benefits of a dynamically typed language.
* detect the way to leverage the ability of IronPython to enhance current applications.
* discover interacting with different .NET languages via invoking the typical language runtime.
<h3>What you?ll learn</h3> * Write IronPython console and varieties applications.
* combine IronPython scripts into current functions to extend their functionality.
* enforce advanced facts styles and have interaction with databases.
* Use the typical language runtime to exploit .NET?s latest framework inside of IronPython scripts.
* know how IronPython should be introduced in to resolve various programming projects via vast workouts and recipes.
* stay away from the typical pitfalls of operating with a dynamically typed language.
<h3>Who is that this publication for?</h3>
This publication is designed for .NET builders attracted to increasing their IronPython talents and studying how you can utilize them to enhance their day-by-day programming practices. it is going to introduce middle ideas of IronPython programming utilizing a .NET?centric procedure. also, it is going to communicate to Python builders trying to extend into their abilities into the .NET global. adventure with a .NET language is anticipated. prior Python event isn't really necessary.
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You can find them all over; they are used in configuration files, the querystring values in a web page URI (Uniform Resource Identifier), and so on. Different languages support them in different ways, including generics and hash tables. 45 46 Ch apt er 3 ■ A DVA NC E D IR ONP YTHON Listing 3-9. " DisplayResult(CreateDictionary(), GetName()) Please enter an employee's name: Susie Tom is a VP in this company. Now we have the ability to find items in collections, be they single words in a string or items in a list.
Depending on what you entered for your age, you may see that you are younger or older than I or perhaps that you are the same age. But the key here is that the output of the program, indeed the entire program operation itself, changed based on this conditional statement. You may have noticed that I slipped two new concepts in there without telling you. You’ll see that I made use of the raw_input() function and that when I asked for the user’s age, I wrapped the entire input line in int(). Wrapping the entire input line in int() is an operation known as casting.
An exception occurs when program execution strays far off course. A pretty common example would be dividing by 0. Many 23 24 Ch apt er 2 ■ IR ONP YTHON S YNTAX languages (C#, for example) even have built-in DivideByZero exceptions to handle those types of cases. In fact, IronPython just told you what type of exception it threw when it encountered the error: a ValueError exception. We can check for those types of exceptions and handle them accordingly. Try-Catch-Finally Wouldn’t it be nice if we could just wrap potentially unsafe operations in some sort of code block that could notify us if things go terribly awry?