Amend Label Property In Code - winforms

Question

I have a very simple Iron Python / Windows Form application. When the application starts it adds a selection of labels in an array (this is working from a CSV file)
#Create Label for each Site
for s in sites:
if lasty == 682:
lasty = 0
lastx = lastx + 125
sitename = str(s) #Convert Name into a String
elementname = sitename.replace(" ","") + "Label"
element = Label()
element.Name = elementname
element.Text = str(sitename)
element.Parent = self
element.Location = Point(lastx,lasty)
labels.append(element) #add each element to the list
lasty = lasty + 22
pass
This is working fine. I then have a definition which runs another loop and depending on the result I would like it to change the colour of the label. Let's say Red for fail, Green for OK, Yellow for warning.
However I cannot seem to link to these labels by the element name I gave them
For example I would think that SiteNameLabel.ForeColor = Color.Green would turn that label green. However this fails and halts the program.
Any ideas? Most probably a simple question but I can't find anything about this online.
Here is the error:
'ipyw64.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_64\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Program Files (x86)\IronPython 2.7\ipyw64.exe'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Dynamic\v4.0_1.1.1.21__7f709c5b713576e1\Microsoft.Dynamic.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Scripting\v4.0_1.1.1.21__7f709c5b713576e1\Microsoft.Scripting.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\IronPython\v4.0_2.7.6.3__7f709c5b713576e1\IronPython.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\IronPython.Modules\v4.0_2.7.6.3__7f709c5b713576e1\IronPython.Modules.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Program Files (x86)\IronPython 2.7\DLLs\IronPython.SQLite.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Program Files (x86)\IronPython 2.7\DLLs\IronPython.Wpf.dll'. Cannot find or open the PDB file.
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'Anonymously Hosted DynamicMethods Assembly'.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'Snippets.scripting'.
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in IronPython.Modules.dll
Exception thrown: 'System.Reflection.TargetInvocationException' in mscorlib.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.Exceptions.ImportException' in Microsoft.Dynamic.dll
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'Snippets.debug.scripting'.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_64\ISymWrapper\v4.0_4.0.0.0__b03f5f7f11d50a3a\ISymWrapper.dll'. Cannot find or open the PDB file.
Exception thrown: 'System.IO.FileNotFoundException' in mscorlib.dll
Exception thrown: 'System.IO.FileNotFoundException' in mscorlib.dll
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll'. Cannot find or open the PDB file.
Exception thrown: 'System.IO.FileNotFoundException' in mscorlib.dll
Exception thrown: 'System.IO.FileNotFoundException' in mscorlib.dll
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll'. Cannot find or open the PDB file.
'ipyw64.exe' (CLR v4.0.30319: ipyw64.exe): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Accessibility\v4.0_4.0.0.0__b03f5f7f11d50a3a\Accessibility.dll'. Cannot find or open the PDB file.
Exception thrown: 'IronPython.Runtime.UnboundNameException' in IronPython.dll
Exception thrown: 'IronPython.Runtime.UnboundNameException' in Snippets.debug.scripting
Exception thrown: 'IronPython.Runtime.UnboundNameException' in Microsoft.Dynamic.dll
Exception thrown: 'IronPython.Runtime.UnboundNameException' in Snippets.debug.scripting
Exception thrown: 'IronPython.Runtime.UnboundNameException' in Snippets.debug.scripting
The program '[9416] ipyw64.exe' has exited with code 1 (0x1).

Answer 1

You cannot use SiteNameLabel as object reference. You must obtain reference to Label from Controls collection of your form. See following code:
import clr
clr.AddReference('System.Drawing')
clr.AddReference('System.Windows.Forms')
from System.Drawing import *
from System.Windows.Forms import *
class MyForm(Form):
def __init__(self):
myLabel = Label()
myLabel.Location = Point(10, 10)
myLabel.Text = "EXAMPLE LABEL"
myLabel.Name = "myLabel"
self.Controls.Add(myLabel)
# later you can find label by name this way:
self.Controls["myLabel"].ForeColor = Color.Green
Application.EnableVisualStyles()
Application.SetCompatibleTextRenderingDefault(False)
form = MyForm()
Application.Run(form)
Note: when you use WinForms designer (in C# project example), it generates form members with control names, so you can access them as you tried. But this is only applicable to controls added at design time.