Append package name to initialFolder path

[ghost]

I'm using Nettuts-Fetch to update my plugins (instead of Package Control) and I updated fetch_command.py to default to

initialFolder = os.path.expanduser('~/Library/Application Support/Sublime Text 3/Packages/')

Is there a simple way to append the chosen package name, (can I add self.packageList.append([name]) somehow to the path above?), so if I choose to update WordCount, for example

"packages":
    {
        "WordCount": "https://github.com/SublimeText/WordCount/archive/st3.zip"
    }

I get ~/Library/Application Support/Sublime Text 3/Packages/WordCount automatically in the path field?