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Asked: 2026-05-12T09:05:51+00:00

I am using the following call for executing the ‘aspell’ command on some strings

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I am using the following call for executing the ‘aspell’ command on some strings in Python:

r,w,e = popen2.popen3("echo " +str(m[i]) + " | aspell -l")

I want to test the success of the function looking at the stdout File Object r. If there is no output the command is successful.

What is the best way to test that in Python?
Thanks in advance.

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1 Answer

  1. Editorial Team

    Best is to use the subprocess module of the standard Python library, see here — popen2 is old and not recommended.

    Anyway, in your code, if r.read(1): is a fast way to test if there’s any content in r (if you don’t care about what that content might specifically be).

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