Python-crontab module

Question

I'm trying to use Python-crontab module over Linux OS (CentOS 7)

My config file is as follows:

{
 "ossConfigurationData": { 
 "work1": [
 { 
 "cronInterval": "0 0 0 1 1 ?", 
 "attribute": [
 { 
 "rules": [
 {
 ......
 }
 ] 
 }
 ],
 "work2": [
 { 
 "cronInterval": "0 0 0 1 2 ?", 
 "attribute": [
 { 
 "rules": [
 {
 ......
 }
 ] 
 },
 ]
 }

}

The file contain many work items. Each work item has it own cron expression. I want my Python script to be able to schedule each cron separately, set it in my OS & run it. When running, the purpose is running each work item separately according to it cron expression I did step-by-step according to this tutorial. After many tests it's writing the cron, but I'm not sure it's what I need

Using this module, I can't create reference to the relevant work item. It's just adding a new line to the OS crontab with any execution I want to put there. I can't describe what I wish to run (i.e. - work1 or work2)

Any suggestions?

10x in advance :)

• stovfl: Possible duplicate of Running crontab with python
• John Zwinck: @stovfl: That link you said is a duplicate is about running Python programs on a schedule configured in cron. This question is about configuring cron using a Python program.
• John Zwinck: "Nothing works" is never an adequate problem description. Show us the code you tried and tell us exactly what happened when you ran it.
• stovfl: "but nothing works": Whera are the differents between running a Python Script or any executable, the Cron setup is the same. Edit your Question and explain your nothing works.
• TGrif: According to the GitLab repo and the pypi sumary, this module is still supported. And of course not, it is not limited to Ubuntu distro.

Answer 1

A common error is not using the cron.save() function after editing. Given the limited information in the question, this is the most likely answer.

• Aviv Cohen: Hi @Martin - I'm not using cron.save(). I'll try to be more clear - I have Json config file that contain many work items. Each work item has it own cron expression. I want my Python script to be able to schedule each cron separately, set it in my OS & run it, when the cron occur, with the content of the specific work item.
• Martin Owens -doctormo-: Hi Aviv, What you're describing isn't a problem in the python-crontab module, but some connection between the json and your crontab. I don't understand enough about your codebase to know why it's not working. It should and what you're asking for is reasonable. Alsa something isn't right.
• Aviv Cohen: Hi @Martin. I've updated my original question with code sample. Pls. take a look