There are many stories that have been told about the creation of the land, and how people came to live there. I've heard one in particular about a snake. Now, this particular snake might have been called Tharu, or Thware, or Hlathu, depending on who you ask, and to hear the story told, he must have had some major psychological issues. Not that that's is part of the story. I'm just reaching my own conclusions here. After all, why else would he split himself in two? Maybe he had a secret ambition to be a worm.
In any case, this snake split himself in two, and named one half Touhou Thoho, and the other, Tshamutshila. This splitting process gave the two new snakes a bad case of the munchies, and so they went off in different directions to go look for food. Tshamutshila found a nearby town, and because he was such a sexy beast, like all snakes, he was immensely popular with the ladies. He took a bunch of wives, built and filled a tremendous kraal, gave birth to numerous children, and became the chieftain of his own tribe.
They say that it's to this snake that the people of that region owe their heritage. As to why he's not around anymore, supposedly his twin, Thoho, took another tactic to get fed. He, like many cold-blooded folks in the present day, realized that you can earn more with song and dance than with the sweat of your brow. He became an entertainer. I imagine it must have created quite a stir - look at the uproar over Elvis's pelvic gyrations, and imagine how much worse it'd have been if he were a snake.
Anyway, his tour finally took him to the village where his twin, Tshamutshila, ruled. Tshamutshila didn't want to go out and see his twin perform (maybe Tharu's psychological issue had been self-loathing?), but eventually his numerous wives managed to persuade him... by one method or another. Yet as soon as the two snake-halves saw each other, they were drawn back together, and they formed back into Tharu. Perhaps figuring that his days as a chieftain and as an entertainer were both over, the snake slithered back into the woods, and in this language we now refer to him as the python.
Now, the peoples of your land have a proper respect for the snake. Those who do not revere it live in fear of it. The former, at least, are likely to trace their beginnings to it, and I'm sure that this is not the only such story. That you call me izinyoka implies that you had such a story in mind. Is this it?