I remember reading about the Singleton pattern in python and how it's an unpythonic pattern and all. At the time I did not need the Singleton anyways, so I just glanced over the document.
But, setting this aside: I have an application where I have a connection to a database. At some point in the application I open up a new window. The new windows resides in a different module. So I have a directory structure like this: - mainapp.py - newwindow.py So I import "newwindow" in "mainapp" so I can instantiate and display it. Meanwhile, the main-app has an open connection to the database. What's the cleanest way to hand this connection to the new window? I can see several possibilities: 1) Simply pass the connection as paramtere to the constructor of new- window. 2) Use the "Singleton" deisign pattern to keep a reference to the connection 3) Open up a completely new connection to the database in the new window. Now, option 1) is clearly the easiest to implement, however, I somehow tend to use option 2 (the singleton) as it's more flexible. Option 3 looks ugly to me. This is a stuation I run into many times. And I am always faced with the same choice. And I never know which one to chose. And now that I am getting more and more comfortable with the basics of python, I would like to know if I am missing something more "pythonic". So, what would you recommend? -- http://mail.python.org/mailman/listinfo/python-list
