I've got a light that doesn't work - I tried replacing the bulb with
several different new ones and no luck.

I took the cover off the switch and pulled the switch out - everything
looks connected

I unhooked the light fixture from the ceiling and pulled it down - I
didn't feel like getting electrocuted so I didn't dig around too much
in there but I didn't see any loose wires.

Is there anything else I can check before calling an electrician?