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![Simplicity (Multiple Return Values in C# and Python )
http://msdn.microsoft.com/en-us/magazine/cc300810.aspx
//C# Code
object[] GetValues() {
object[] results = new object[2];
object[0] = 42;
object[1] = "Hello";
return results;
}
object[] results = GetValues();
int x = (int)results[0];
string s = (string)results[1];
#IronPython Code
def get_values() :
return 42, "Hello"
x, s = get_values()
IronPython is simpler than C#](https://image.slidesharecdn.com/ironpython-130509114318-phpapp01/85/Iron-python-5-320.jpg)
![Using IronPython to Connect to SQlServer!
import clr #To utilize additional .NET libraries, the clr module must be imported and then specific
assemblies referenced.
clr.AddReference('System.Data')
from System.Data.SqlClient import SqlConnection, SqlParameter
def Page_Load(sender, e):
conn_string = 'server=0.0.0.0;database=Database;User ID=abc;Password=abc'
connection = SqlConnection(conn_string)
connection.Open()
command = connection.CreateCommand()
command.CommandText = 'select UserID,UserPassword from MyTable'
reader = command.ExecuteReader()
while reader.Read():
ListBox1.Items.Add(reader['UserID'])
connection.Close()
<asp:ListBox ID="ListBox1" runat="server"></asp:ListBox>](https://image.slidesharecdn.com/ironpython-130509114318-phpapp01/85/Iron-python-10-320.jpg)
Iron python
- 1. IronPython integration withAsp.net CPSC 473 - Web Programming and Data Management Lightning Talks, Round 2, May 22 George Ishak
- 2. Agenda About Installation Simplicity How To CreateA web site Kilograms to Pounds Conversion Using IronPython to Connect to SQlServer Execution Time(in Seconds) Debugging Resources
- 3. About • IronPython (Python + .NET ) is an open-source .NET implementation. • Written by the CLR team at Microsoft. o The common language runtime (CLR) enables deep integration among languages. o This allows developers to choose the best language for the problems they are trying to solve, rather than settling on one language. • It provides full access to .NET libraries . • It provides access to standard Python libraries. • .NET languages(C#,VB.net) can use Python code. • Great development environment of Visual Studio IDE • The latest stable version of IronPython is IronPython2.7.3, which is compatible with Python 2.7 and released on 2012-07-06
- 4. Installation • Visual Studio2008 or later must be installed 1. Download IronPython from http://ironpython.codeplex.com/releases/view/81726 2. Python Tools for Visual Studio (PTVS) is an open-source plug-in for Visual Studio which supports programming with the Python programming language http://pytools.codeplex.com/releases/view/76091 3. Download ASP.NET IronPython integration for Visual Studio http://www.microsoft.com/en-us/download/details.aspx?id=22457
- 5. Simplicity (Multiple ReturnValues in C# and Python ) http://msdn.microsoft.com/en-us/magazine/cc300810.aspx //C# Code object[] GetValues() { object[] results = new object[2]; object[0] = 42; object[1] = "Hello"; return results; } object[] results = GetValues(); int x = (int)results[0]; string s = (string)results[1]; #IronPython Code def get_values() : return 42, "Hello" x, s = get_values() IronPython is simpler than C#
- 6. Simplicity (Swapping TwoVariables in C# and Python ) http://msdn.microsoft.com/en-us/magazine/cc300810.aspx //C# Code void Swap(ref int x, ref int y) { int temp = x; x = y; y = temp; } int x = 4, y = 2; Swap(ref x, ref y); #IronPython Code • x, y = 4, 2 • x, y = y, x IronPython is simpler than C#
- 7. How To CreateA project File->New->Web Site
- 8. Default.aspx.py import System.String #importing System.String from .Net from System import String # Or we can use import Class1 # importing C# class def Button1_Click(sender, args):#Using Python for converting Pounds to Kilograms KilogramsTxt.Text=(float(PoundsTxt.Text)*0.453592).ToString() def Button2_Click(sender, args):#Calling C# class from Python obj = Class1() PoundsTxt.Text=str(obj.Kilograms_Pounds(float(KilogramsTxt.Text))) //Class1.cs public class Class1 { public string Kilograms_Pounds(double KG) { return (KG / 0.453592).ToString(); } } Kilograms to Pounds conversion
- 9. Default.py <%@ Page Language="IronPython"CodeFile="Default.aspx.py" %> <body> <form id="form1" runat="server"> <table border="0" cellpadding="0" cellspacing="0"> <tr><td>Pounds</td><td><asp:TextBox ID="PoundsTxt" runat="server"></asp:TextBox></td></tr> <tr><td>Kilograms</td><td><asp:TextBox ID="KilogramsTxt" runat="server"></asp:TextBox></td></tr> <tr><td colspan="2"> <asp:Button ID="Button1" runat="server" Text="Pounds->Kilograms" OnClick="Button1_Click"/> <asp:Button ID="Button2" runat="server" Text="Kilograms->Pounds" OnClick="Button2_Click"/> </td> </tr> </table> </div> </form>
- 10. Using IronPython toConnect to SQlServer! import clr #To utilize additional .NET libraries, the clr module must be imported and then specific assemblies referenced. clr.AddReference('System.Data') from System.Data.SqlClient import SqlConnection, SqlParameter def Page_Load(sender, e): conn_string = 'server=0.0.0.0;database=Database;User ID=abc;Password=abc' connection = SqlConnection(conn_string) connection.Open() command = connection.CreateCommand() command.CommandText = 'select UserID,UserPassword from MyTable' reader = command.ExecuteReader() while reader.Read(): ListBox1.Items.Add(reader['UserID']) connection.Close() <asp:ListBox ID="ListBox1" runat="server"></asp:ListBox>
- 11. //C# is about25 lines of code to compute Factorial using System; using System.Diagnostics; public partial class _Default : System.Web.UI.Page { protected void Button1_Click(object sender, EventArgs e) { Stopwatch sw = new Stopwatch(); sw.Start(); Results.Text = Factorial(Convert.ToDouble(Numbertxt.Text)).ToString(); sw.Stop(); Elapsed.Text = sw.Elapsed.TotalMilliseconds.ToString(); } public double Factorial(double factor) { double factorial = 1; for (int i = 1; i <= factor; i++) { factorial *= i; } return factorial; } } #IronPython is about 16 lines of code to #compute Factorial import System.Diagnostics import time def Button1_Click(sender, args): start_time = time.time() Results.Text = Factorial(int(Numbertxt.Text)).ToString() end_time = time.time() uptime = end_time - start_time Elapsed.Text = uptime.ToString() def Factorial(factor): factorial = 1 for x in range(1, int(factor)): factorial *= x return factorial Lines of code to compute 170!
- 12. Execution Time(in Seconds)between “ASP.Net” and “IronPython”? # ASP.NET 1 0.0062 2 0.0067 3 0.0076 4 0.0062 5 0.0057 # IronPython 1 0.0110 2 0.0100 3 0.012 4 0.0109 5 0.0179 0 0.005 0.01 0.015 0.02 0.025 1 2 3 4 5 IronPython 170! C# 170! Computing Factorial Program 170! ASP.NET Is Faster Than IronPython
- 13. Debugging • Python Toolsfor Visual Studio includes an interactive window for debugging your code. • When execution breaks into the debugger, the debug interactive window is now ready to start executing code http://pytools.codeplex.com/wikipage?title=Features%20Debugging
- 14. Resources • IronPython http://ironpython.net/ •IronPython on Codeplex http://ironpython.codeplex.com/ • Python Tools for Visual Studio 1.1 http://pytools.codeplex.com/releases/view/76091 • Asp.NET IronPython integration for visual Studio http://www.microsoft.com/en-us/download/details.aspx?id=22457 • http://msdn.microsoft.com/en-us/magazine/cc300810.aspx • http://pytools.codeplex.com/wikipage?title=Features%20Debugging • Books o IronPython in Action o Professional IronPython • IronPython Tools for Visual Studio Walkthrough http://ironpython.net/ironpython/tools/IronPython-Tools-for-Visual-Studio- Walkthrough.pdf
- 15.