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The graphviz library has a large set of dependencies, and as such it may be desireable to not install it by default. Before this patch execution of ovs-flowviz would end in ImportError when graphviz is unavailable. Exit with a friendly message instead, allowing the user to consume the parts of the program that do not depend on graphviz. Signed-off-by: Frode Nordahl <fnordahl@ubuntu.com> Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Python library for working with Open vSwitch