I've been trying to draw line across the screen with:

draw_line(0,0,500,500,255,255,255)

But I always receive the error "an integer is required". 

I've tried feeding it different parameter types but I just keep receiving that message. What am I doing wrong?

What you did should work and I can duplicate the error.  I'll check it out and see what the problem is.

I've posted a new pyd that fixes the problem.  Thanks for letting me know about the bug.

That did the trick. Thanks for the fix!