Python for .NET is a package that gives Python programmers nearly seamless integration with the .NET Common Language Runtime (CLR) and provides a powerful application scripting tool for .NET developers. It allows Python code to interact with the CLR, and may also be used to embed Python into a .NET application.
Python for .NET allows CLR namespaces to be treated essentially as Python packages.
import clr
from System import String
from System.Collections import *To load an assembly, use the AddReference function in the clr module:
import clr
clr.AddReference("System.Windows.Forms")
from System.Windows.Forms import Form- All calls to python should be inside
a
using (Py.GIL()) {/* Your code here */}block. - Import python modules using
dynamic mod = Py.Import("mod"), then you can call functions as normal, egmod.func(args). - Use
mod.func(args, Py.kw("keywordargname", keywordargvalue))to apply keyword arguments. - All python objects should be declared as
dynamictype. - Mathematical operations involving python and literal/managed types must
have the python object first, eg.
np.pi_2works,2_np.pidoesn't.
static void Main(string[] args)
{
using (Py.GIL())
{
dynamic np = Py.Import("numpy");
dynamic sin = np.sin;
Console.WriteLine(np.cos(np.pi*2));
Console.WriteLine(sin(5));
double c = np.cos(5) + sin(5);
Console.WriteLine(c);
/* this block is temporarily disabled due to regression #249
dynamic a = np.array(new List<float> { 1, 2, 3 });
dynamic b = np.array(new List<float> { 6, 5, 4 }, Py.kw("dtype", np.int32));
Console.WriteLine(a.dtype);
Console.WriteLine(b.dtype);
Console.WriteLine(a * b); */
Console.ReadKey();
}
}Output:
1.0
-0.958924274663
-0.6752620892
float64
int32
[6. 10. 12.]