From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <stephen@networkplumber.org>
Subject: Re: [PATCH v1] dpdk-devbind.py: Virtio interface issue.
Date: Thu, 25 Aug 2016 17:37:29 -0700
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References: <20160825022546.96468-1-sodey@sonusnet.com>
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On Wed, 24 Aug 2016 22:25:46 -0400
souvikdey33 <sodey@sonusnet.com> wrote:

> +    #The path for virtio devices are different. Get the correct path.
> +	virtio = "/sys/bus/pci/devices/%s/" % dev_id
> +    cmd = " ls %s | grep 'virt' " %virtio
> +    virtio = commands.getoutput(cmd)

I am not a python export but in general it is better to use native language
facilities likes os.listdir() rather than using shell pipes.