Truffle v5 supported Vyper.
I made Docker image to try it easialy.(Dockerfile)
How to use
docker run -it sot528/truffle-vyper-test In the container
It unboxed vyper-example-box. So you can use below.
$ truffle test Using network 'test'. Contract: VyperStorage ✓ ...should store the value 89. (114ms) 1 passing (129ms) It works.
You can try anything via editing ./contracts/VyperStorage.vy and truffle compile.
stored_data: uint256 @public def set(new_value : uint256): self.stored_data = new_value @public @constant def get() -> uint256: return self.stored_data The test file is ./test/vyperStorage.js.
const VyperStorage = artifacts.require("VyperStorage"); contract("VyperStorage", () => { it("...should store the value 89.", async () => { const storage = await VyperStorage.deployed(); // Set value of 89 await storage.set(89); // Get stored value const storedData = await storage.get(); assert.equal(storedData, 89, "The value 89 was not stored."); }); }); If you see the error below, then you should remove all of the files in build.
Error parsing /code/contracts/VyperStorage.vy: ParsedContract.sol:1:1: ParserError: Expected pragma, import directive or contract/interface/library definition. stored_data: uint256 ^---------^ Compilation failed. See above. Truffle v5.0.0 (core: 5.0.0) 
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