Save `pdb` Line History Between Runs

Feature or enhancement

Proposal:

When using pdb, it is possible to use the arrow keys (up/down) to navigate through previous commands. However, commands between runs are not preserved (unlike in the REPL).

I would like commands to be preserved between runs. For me, the most common use case for this is setting a breakpoint in the same place. Currently, I do this with python -m pdb -c "break file.py:line" ....

I am not familiar with how the pdb is implemented, but I have used bdb in depth in the past. I assume that it is possible to do this in a similar way to the REPL history. There is a workaround available here: https://stackoverflow.com/a/35390866/.

Has this already been discussed elsewhere?

This is a minor feature, which does not need previous discussion elsewhere

Links to previous discussion of this feature:

No response

Comienza rastreando cómo pdb gestiona el historial de comandos y compáralo con el comportamiento del historial del REPL; el issue apunta a bdb y al punto de entrada python -m pdb -c. Confirma el alcance previsto de la persistencia y, después, verifica que los comandos introducidos en una ejecución de depuración estén disponibles en una ejecución posterior sin romper la navegación con las teclas de flecha ni los comandos -c existentes.