* python/python.h: Declare gdbpy_should_stop and
gdbpy_breakpoint_has_py_cond.
* python/python.c: Add python.h to includes. Remove
python.h from
HAVE_PYTHON definition
(gdbpy_should_stop): New dummy function.
(gdbpy_breakpoint_has_py_cond): New dummy function.
* python/py-breakpoint.c (bppy_init): Rewrite to allow
sub-classing capabilities.
(gdbpy_should_stop): New function.
(gdbpy_breakpoint_has_py_cond): New function.
(local_setattro): New function.
* breakpoint.c (condition_command): Add check for Python
'stop'
operation.
(bpstat_check_breakpoint_conditions): Execute Python
'stop'
operation function as part of stop/continue tests.