[docs] [issue17799] settrace docs are wrong about "c_call" events

Xiang Zhang <angwerzx@126.com> added the comment: Hi Guido. Looking at the implementation, it seems pdb ignores c_call not by relying on the interpreter, but bdb takes no action when encountering C events. Yeah, even bdb wrongly expects C events will be triggered for settrace. [1] And what if some debuggers want not only to trace Python events but also C events, then it has to mix the power of trace and profile but can't only rely on trace. [1] https://github.com/python/cpython/blob/master/Lib/bdb.py#L59 ---------- versions: +Python 3.6, Python 3.7 -Python 3.4, Python 3.5 _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue17799> _______________________________________