Environment

• Pythonnet version: 2.3.0
• Python version: 3.6-32
• Operating System: Windows 10

Details

• Getting aMethodBinding for a generic method results in the reference count being too high, so thetp_dealloc method on theMethodBinding never gets called, even when theMethodBinding goes out of scope.

namespacePlainOldNamespace{publicclassPlainOldClass{publicvoidNonGenericMethod(){}publicvoidGenericMethod<T>(){}}}

importclr,sysclr.AddReference("PlainOldAssembly")fromPlainOldNamespaceimportPlainOldClasspoc=PlainOldClass()sys.getrefcount(poc.NonGenericMethod)# 1sys.getrefcount(poc.GenericMethod[clr.System.Double])# 2 - should be 1

I think this could be down to a bug in MethodBinding.cs. This line looks suspicious. Why should the reference count get incremented here?
https://github.com/pythonnet/pythonnet/blob/master/src/runtime/methodbinding.cs#L59