Browse by Tags

Tagged Content List
  • Blog Post: IronPython: System.Reflection.Assembly object

    IronPython offers a little bit more love to the Assembly object instance: we can directly access the assembly's top-level members (namespace, public type) via the dot operation. System.Reflection provides many ways to let you hold the assembly object, such as Assembly.Load method, Type.Assembly property...
  • Blog Post: IronPython: System.Array

    When you start interop'ing with .NET in IronPython, sooner or later, you will find that you are in need of creating an array as argument. There are mainly 2 ways to create array objects: Array with type indexing (for one-dimensional array object only), and classic reflection API: Array.CreateInstance...
  • Blog Post: IronPython: ipyw.exe

    Each IronPython binary release ships two executable files: ipy.exe and ipyw.exe. Their (only) difference is, ipy.exe is a console application and ipyw.exe is a windows application. So given the following winform.py, ## winform.py import clr clr.AddReference( "System.Windows.Forms" ) from System...
  • Blog Post: IronPython: Accessing the .NET Field

    The .NET libraries normally do not expose the public field, but we can still find its' presence for certain scenarios. IronPython treats the .NET fields like python attribute. For python attribute, the typical operations are set, get and delete. In general, IronPython throws TypeError when deleting members...
  • Blog Post: VisualStudio as my IronPython editor

    The following steps are what I did to get Visual Studio ready as my IronPython (and IronRuby) editor. Install the latest internal dogfood build of Visual Studio 2008. you may use Visual Studio 2005 or download the VS 2008 public beta2 ; Download and install ASP.NET futures release (July...
  • Blog Post: IronPython: explicitly choose one method

    C# allows method overloading. Given an argument list, the compiler performs the overload resolution to select the best method to invoke. The chosen method token is baked into the assembly. IronPython does the method resolution at the IronPython run time ; for most scenarios, it has no problem in picking...
  • Blog Post: IronPython: Provide (or not) Argument for by-ref Parameter

    Python function may return multiple objects as a tuple. The .NET method can only return one object as the result of a call; in order to return more than one objects, by-ref parameters are needed. They are decorated with the parameter modifier (ref, out) in C#. Dictionary.TryGetValue (TKey key, out...
  • Blog Post: IronPython: Keyword Argument to Set .NET Property/Field

    Use keyword arguments to set properties or fields… you likely ask the question: where can we do this? IronPython allows it in the constructor call, the call against the .NET type. Such keyword should be the name of public field, or property (which is not read-only). After creating the object instance...
  • Blog Post: IronPython: Passing Arguments for a Call

    After getting a CLR type, we can play it like a python type. We can get the class/static methods using the dot operator ("attribute reference") on the type, or create an instance of it and then get the instance methods. In Python’s word, these methods are callable objects, and we can make " calls " on...
  • Blog Post: IronPython: Grab the .NET Type

    After loading the assembly by clr.AddReference and then import namespace, we are ready to take hold of types and down-level namespaces using " attribute references ". >>> import System >>> System.DateTime # type <type 'DateTime'> >>> System.Diagnostics # still namespace...
  • Blog Post: IronPython: clr.AddReference

    In order to interop with .NET libraries, we need first load in the assemblies we want to play with. The family of AddReference methods in the clr module serves the purpose. clr.AddReference clr.AddReferenceByName clr.AddReferenceByPartialName clr.AddReferenceToFile clr.AddReferenceToFileAndPath...
  • Blog Post: IronPython: import clr

    clr is an IronPython built-in module, which provides some functionalities in order to interop with .NET. When writing "import clr" in a python module, it means you intend to leverage the .NET libraries. One classical example is python string's methods. In IronPython, python type str is implemented by...
  • Blog Post: DebuggerTypeProxy for IronPython Old-style Class and Instance

    First I want to make it clear that this post means nothing related to IronPython's plan about debugging python code in the future; it serves more as an interesting example to demonstrate DebuggerTypeProxyAttribute and how types can be created dynamically and be used in the VS debugger windows to display...
  • Blog Post: System.Reflection-based ILReader

    Compared to what I posted previously here (or what was used in the DynamicMethod visualizer ), this new version introduced the Visitor pattern . A do-nothing visitor ILInstructionVisitor is included; the users can focus on their domain-specific logic by simply inheriting from it and overriding...
  • Blog Post: Use IronPython to Experiment .NET Libraries

    When working on .NET projects, we often need to find the right API or the proper parameters to pass in to a particular method. Usually we search MSDN or turn to other search engines to solve such issue. Some people, however, prefer first-hand experience over search; they perfer experimenting or playing...
Page 1 of 1 (15 items)