bluetooth file transfer in python

I am a teacher and need to set up a computer with a bluetooth dongle
to poll for mobile phones with bluetooth switched on in the area then
send them a jpg file.

I understand that python is capeable of this.

1.) is it worth learning python to do this or can someone out there do
it for me for a v small fee?

2.) If I am going to do it can anyone give me pointers in the best way
to do it so I do not spend hours wasting time.

Many thanks

chartsoft
.