A simple example of C # calling a Python script _c# tutorial

IronPython is a kind of in. NET and the Python implementation on Mono, launched by Microsoft's Jim Hugunin, is an Open-source project based on Microsoft's DLR engine. IronPython's homepage on CodePlex:http://ironpython.codeplex.com/

Usage scenarios:

If your partner writes Python scripts, and the functionality of most of your projects has been implemented, you don't need to implement them in C #. Now the form is missing, at this point the combination of python+c# can be a perfect ending problem!

Example:
By IronPython, you can take advantage of it. NET executes code snippets stored in a Python script. The following is a simple example that shows how to apply C # to invoke a Python script.

1. Create a new form item in VS: Ironpythondemo

2, vs Menu Open "NuGet Package Manager"

3, search IronPython package and install

4, in the EXE program in the folder (in this case, ". \ironpythondemo\ironpythondemo\bin\debug"), create a Python script. or copy the existing script to the directory. The Python sample script implements a two-number arithmetic:

Num1=arg1 
num2=arg2 
op=arg3 
if op==1: result=num1+num2 elif op==2 
: 
 result=num1-num2 
Elif op==3: 
 result=num1*num2 
Else: 
 result=num1*1.0/num2 

5, modify the project configuration file app.config as follows:
several properties of the IronPython language engine are set in the Microsoft.scripting node.

<?xml version= "1.0" encoding= "Utf-8"?> 
<configuration> 
 <configSections> 
 < Section name= "microsoft.scripting" type= "Microsoft.Scripting.Hosting.Configuration.Section, microsoft.scripting"/ > 
 </configSections> 
 <microsoft.scripting> 
 <languages> 
  <language names= " IronPython; Python;py "extensions=". Py "Displayname=" Python "type=" IronPython.Runtime.PythonContext, IronPython "/> 
 < /languages> 
 </microsoft.scripting> 
 <startup> 
  <supportedruntime version= "v4.0" Sku= ". netframework,version=v4.5 "/> 
 </startup> 

6. The drawing form is as follows:

7, write the calculation function:

private void Btncalculate_click (object sender, EventArgs e) 
  { 
   Scriptruntime scriptruntime = Scriptruntime.createfromconfiguration (); 
   ScriptEngine Rbeng = scriptruntime.getengine ("python"); 
   Scriptsource Source = Rbeng.createscriptsourcefromfile ("ironpythondemo.py");/Set script file 
   scriptscope scope = Rbeng.createscope (); 
 
   Try 
   { 
    //Set parameter 
    scope. SetVariable ("Arg1", Convert.ToInt32 (Txtnum1.text)); 
    Scope. SetVariable ("Arg2", Convert.ToInt32 (Txtnum2.text)); 
    Scope. SetVariable ("Arg3", operation. selectedindex+1); 
   } 
   catch (Exception) 
   { 
    MessageBox.Show ("entered incorrectly.) "); 
   } 
 
   Source. Execute (scope); 
   Labelresult.text = scope. GetVariable ("result"). ToString (); 
  } 

8, the compilation run may calculate the result (here does not do the input inspection)

The above is the C # call Python script simple method, hope to be helpful to everybody's study.