You can create a code snippet for your function call by going to File
> Preferences
> User Snippets
and selecting the language you're working with (in this case, Python). Then, select "New Global Snippets file" and enter a name for your snippet file.
{
"myfunc": {
"prefix": "Surround with...",
"body": [
"${1:function}(${TM_SELECTED_TEXT})"