for loop outputs functional brackets

Question

At my Python code, I have the following line:

init_segment = str([init_segment for init_segment in os.listdir(job_output_root + '/' + track) if init_segment.startswith("init-")])

If I output the variable, the "[brackets]" are included in the output, why that? Currently, it looks like this:

/tmp/output/6 test/['init-a-aac_he_v2-de-mp4a.40.5_64000.m4s']

where it should look like that:

/tmp/output/6 test/init-a-aac_he_v2-de-mp4a.40.5_64000.m4s

Thanks in advance

• 001: Show the line where you print init_segment I think somewhere you are printing '/tmp/output/6 test/' + init_segment. Create a minimal reproducible example.

Answer 1

You are getting the string representation of the list. You want a single string created from the elements of the list only; use the join method to create that string.

init_segment = ''.join([x 
 for x in os.listdir(job_output_root + '/' + track)
 if x.startswith("init-")])

• user18726875: That seems to work way better. Thanks!