Check whether the Context has a "_libudev" attribute
Check whether the Context has a "_libudev" attribute

The __del__ method can be invoked during the execution of the __init__
method if initialization fails.

Signed-off-by: mulhern <7b51bcf507bcd7afb72bf8663752c0ddbeb517f6@redhat.com>

pyudev/pyudev