[Tutor] Running multiple python scripts from one python scripts

[Alan Gauld]

On 25 October 2019, at 14:48, ose micah <osaosemwe at yahoo.com> wrote:

> dynamically creates python scripts on the fly (from live feeds), 

I'm not sure what you mean by live feeds but can you explain what different kinds of scripts you produce for the first case "delete_line3.py"?

Based on the name it doesn't sound too dynamic in nature? Could it not be turned into a function driven by some parameters?

> This newly created scripts, must be deployed in less than 2 mins max, but, cannot be deployed simultaneously, 

By deployed I assume you mean executed? If so executing the code directly will be much, much, faster than spinning up a subprocess or two for each task.

># create script1
>
>with open (/tmp/delete_line3.py, 'w+' ) 
>
>...
>

This is the bit that is puzzling me. Why must this be dynamically created? What prevents it from being prewritten code?

>extProc1 = sp.Popen([sys.executable, '/tmp/delete_line3.py'],  stdout=sp.PIPE)
>

If you must execute dynamically created python code files then using exec(open(fn).read()) is probably preferable to starting a subprocess.