Simple IronPython WInForm

form.py

import clr
clr.AddReference('System.Windows.Forms')
clr.AddReference('System.Drawing')

from System.Windows.Forms import *
from System.Drawing import *


class MyForm(Form):
     
    def __init__(self):
        
         selectInput = Button()
         selectInput.Location = Point(350, 50)
         selectInput.Size = Size(100, 23);
         selectInput.UseVisualStyleBackColor = True
         selectInput.Click += self.onClick
         selectInput.Text = 'Select Input File'
         
         global inputFile
         
         inputFile = TextBox()
         inputFile.Location = Point(50, 50)
         inputFile.Size = Size(183, 20);
         
         
         self.ClientSize = Size(477, 450)
         
         
         self.Controls.Add(selectInput)
         self.Controls.Add(inputFile)
         
         
         
    def onClick(self, sender, args):
        
        
        fileDialog = OpenFileDialog()
        fileDialog.InitialDirectory = "C:\\Users"
        fileDialog.ShowDialog()
        inputFile.Text = fileDialog.FileName
        
    
form = MyForm()

Application.Run(form)