Python3 exception handling

Hi experts,

what is the best way to handle exception in below python3 subprocess scenario please?

I execute below line in my python script.['aws', 'ec2', 'start-instances', '--instance-ids', instance , '--output', 'table'])

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could you suggest a best way to handle exception please? try/except?

Thanks in advance
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NorieAnalyst Assistant Commented:
Perhaps something like this.

from subprocess import Popen, PIPE

p = Popen(['aws', 'ec2', 'start-instances', '--instance-ids', instance , '--output', 'table'], stdout=PIPE)
output = p.communicate()[0]
if p.returncode != 0: 
   print("Subprocess failed %d %s" % (p.returncode, output))

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enthuguyAuthor Commented:
thanks a lot Norie. Hope this is in python3. could you pls help me understand difference between Popen and

Will try and update you
enthuguyAuthor Commented:
Thanks a lot

understood from this
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