However, you could use a more general collective noun like:
* A nest of snakes
* A pit of snakes
* A coil of snakes
* A den of snakes
* A brood of snakes
Since pythons are large snakes, a coil of pythons might be a fitting option.
You could also use a descriptive phrase like a tangle of pythons, a mass of pythons, or a gathering of pythons.