Does debugpy support triggered breakpoints?

[krave1986]

Does debugpy support triggered breakpoints described here?

I have tried it on my side - VSCode on Windows.
But the triggered breakpoint (the second breakpoint that should be activated after the triggering breakpoint is hit) is not working.

So I'm not sure if this kind of breakpoint is supported by debugpy.
If it is supported, then this is a bug I think.

[rchiodo]

These work for me, but they seem to be implemented in VS code itself. Debugpy isn't told anything about the "triggered" breakpoint until the triggering breakpoint is hit first. Then VS code sends a new breakpoint request after the first breakpoint is hit.

Do you have a specific repro?

This case worked for me:

TriggeredBreakpoint.mp4

[krave1986]

Hi,

You are right!

While preparing the minimal reproduction case, I discovered that the issue was actually on my end - I had misunderstood the code flow logic.

The triggered breakpoint was working correctly all along. The reason it appeared not to trigger was that after the prerequisite breakpoint was hit, the code execution path didn't actually proceed through the location where I had set the subsequent triggered breakpoint.

Here is my code example:

from sqlalchemy import Integer, ForeignKey, String
from sqlalchemy.orm import (
    DeclarativeBase,
    mapped_column,
)
from sqlalchemy.orm.decl_api import DeclarativeAttributeIntercept


class test_self(DeclarativeAttributeIntercept):
    def __getattr__(self, key):
        # set triggered breakpoint here to wait for breakpoint being hit on line 36
        print(f"self is: {self}")
        print(f"type of self is: {type(self)}")

        if not key.startswith("_"):
            self.registry.configure()
            try:
                return self.__dict__[key]
            except KeyError as ke:
                raise AttributeError(key) from ke
        raise AttributeError(key)


class Base(DeclarativeBase, metaclass=test_self):
    pass


class A(Base):
    __tablename__ = "a"
    id = mapped_column(Integer, primary_key=True)
    b_id = mapped_column(ForeignKey("b.id"))
    name = mapped_column(String(50), nullable=True)


# set breakpoint here
print(A.b)

Thank you!