I will provide you with the source code of a first version of a Windows application, which was written in Python and compiled using py2exe. The graphic interface is built using Tkinter.
The program process a file with a list of serial numbers, requests information to a remote server and prints the returned data.
The changes required are the following:
1. Allow to choose a printer. (Currently prints directly to the default printer)
2. Process automatically all files in a folder. (Currently opens an "open file" dialog for the user to select the file)