Indeed - good feedback from Caffers and Lord Vetinari.
Perhaps
Nsekhose is getting the word and defination of poisonous and venomous mixed up - which is a very very common mistake and not always obvious to other people.
Also -
poisonous snake if eaten = Tiger Keelback : Rhabdophis tigrinus and it is also VENOMOUS, although it is a rear-fanged species of coloubrid. Although venomous, few deaths have been recorded... and it has a hesitancy to strike at a predator... may be because its fangs are located in the back of the mouth making a successful strike on a large object difficult. It is believed the toxicity derives from chemicals gained from eating toads in its diet and these chemicals are ingested and then stored within nuchal glands at the back of their necks.
Tiger Keelback also known as the floral snake.
p.s -
Nsekhose : Looks like the snake in the photo is dead - did you hit/kill it?