Show HN: Rocketry – Statement-based scheduling framework for Python

Re:Show HN: Rocketry – Statement-based scheduling framework ... by svennek on Thursday September 22, 2022 @06:00AM (#32936808)

... or make CLI version of your tasks and let the system mangement daemon ("cron" or in my case systemd timers) handle it.

For clarity make a subfolder called "tasks" or something like that.

Then you get consolidate logging, retries and all kind of stuff for free in a battle-hardened setup and a standardized way to lookup what is enabled and what is not.

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by anyfactor on Thursday September 22, 2022 @07:18AM (#32937355)

I remember a project that could convert any python script to a python CLI. This was taken to another level by another project that could convert any python CLI to a GUI.

Can anyone help me with this?

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by dr-neptune on Thursday September 22, 2022 @08:18AM (#32937823)

Fire can basically do the first step (object -> CLI):

https://github.com/google/python-fire

Gooey can do (CLI -> GUI):

https://github.com/chriskiehl/Gooey

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by anyfactor on Thursday September 22, 2022 @01:28PM (#32942028)

Thank you very much!

I hope I don't lose them this time, even though I can see that I have starred one of the repos before.

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by wodenokoto on Thursday September 22, 2022 @07:09AM (#32937288)

I didn’t know from could schedule jobs dependent on other jobs. Isn’t it what this brings to the table?

“When job a and job b are done, run job c” kind of things.

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by svennek on Thursday September 22, 2022 @01:23PM (#32941944)

In systemd you can have multiple ExecStarts, which will be run in order (if I remember correctly), and ExecStopPost is brilliant for notifying problems..

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Re:Show HN: Rocketry – Statement-based scheduling framework ... by bhargav on Thursday September 22, 2022 @08:04AM (#32937689)

The main benefit of cron is your code stops once it’s done, process is cleaned up. There isn’t a provided way to do dependencies but that can be done using some shared locks and scheduling. Won’t be completely accurate which why solutions like Airflow are used.

Edit: forgot the most obvious way to do dependencies… just execute A & B together as one cron job; still need something like airflow if it gets into a DAG territory

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