[dpdk-dev] [PATCH] doc: fix build with python 3.8

[Bruce Richardson]

On Mon, Dec 09, 2019 at 10:00:00PM +0100, Thomas Monjalon wrote:
> After upgrading to python-3.8.0, a syntax mismatch is revealed:
> 
> doc/guides/conf.py:240: SyntaxWarning: "is not" with a literal.
>     Did you mean "!="?
>     if value is not '':
> 
> Replacing "is not" with "!=" seems the right thing to do.
> 

Since this is basically just checking for an empty string is 
"len(value) > 0" not more logical than either comparison against ''?

/Bruce