.. function:: effective(file, line, frame)
Determine if there is an effective (active) breakpoint at this line of code.
- Return breakpoint number or 0 if none.
- Called only if we know there is a breakpoint at this location. Returns the
- breakpoint that was triggered and a flag that indicates if it is ok to delete
- a temporary breakpoint.
+ Return a tuple of the breakpoint and a boolean that indicates if it is ok
+ to delete a temporary breakpoint. Return ``(None, None)`` if there is no
.. function:: set_trace()
s debugging with a :class:`Bdb` instance from caller's frame.
+ Start debugging with a :class:`Bdb` instance from caller's frame.