I have written several Python tools for my company.  Is there any good reason to convert them from Python to C# now that their usefulness has been proven?  Would I be better off just leaving them in Python?
I would not convert unless you are converting as part of an enterprise-wide switch from one language to another. Even then I would avoid converting until absolutely necessary. If it works, why change it?
Is there any good reason to convert an app written in python to c#?