On 2022-08-04 12:51, Loris Bennett wrote:
Hi,
I am constructing a list of dictionaries via the following list
comprehension:
data = [get_job_efficiency_dict(job_id) for job_id in job_ids]
However,
get_job_efficiency_dict(job_id)
uses 'subprocess.Popen' to run an external program and this can fail.
In this case, the dict should just be omitted from 'data'.
I can have 'get_job_efficiency_dict' return 'None' and then run
filtered_data = list(filter(None, data))
but is there a more elegant way?
I'm not sure how elegant it is, but:
data = [result for job_id in job_ids if (result :=
get_job_efficiency_dict(job_id)) is not None]
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