James Bachini

Using Vyper With Remix

vyper remix

You can now use Vyper (a smart contract programming language similar to python) with remix to build and deploy contracts on Ethereum and other EVM blockchains.

The first step is installing the Vyper plugin at https://remix.ethereum.org/ where you’ll find a list of plugins using the icon in the bottom left. You’ll then get an extra tab to compile Vyper code.

Vyper Remix

Create a new file and call it something.vy then you can copy and paste in this simplified ERC20 token example.

from vyper.interfaces import ERC20

implements: ERC20

event Transfer:
    sender: indexed(address)
    receiver: indexed(address)
    value: uint256

event Approval:
    owner: indexed(address)
    spender: indexed(address)
    value: uint256

name: public(String[32])
symbol: public(String[32])
decimals: public(uint8)

balanceOf: public(HashMap[address, uint256])
allowance: public(HashMap[address, HashMap[address, uint256]])
totalSupply: public(uint256)

def __init__():
    self.name = "vyToken"
    self.symbol = "VY"
    self.decimals = 18
    init_supply: uint256 = 1_000_000 * 10 ** convert(self.decimals, uint256)
    self.balanceOf[msg.sender] = init_supply
    self.totalSupply = init_supply
    log Transfer(empty(address), msg.sender, init_supply)

def transfer(_to : address, _value : uint256) -> bool:
    self.balanceOf[msg.sender] -= _value
    self.balanceOf[_to] += _value
    log Transfer(msg.sender, _to, _value)
    return True

def transferFrom(_from : address, _to : address, _value : uint256) -> bool:
    self.balanceOf[_from] -= _value
    self.balanceOf[_to] += _value
    self.allowance[_from][msg.sender] -= _value
    log Transfer(_from, _to, _value)
    return True

def approve(_spender : address, _value : uint256) -> bool:
    self.allowance[msg.sender][_spender] = _value
    log Approval(msg.sender, _spender, _value)
    return True

Click compile and then you can use the deployment tab just like you would a Solidity smart contract.

You’ll notice the code above pleasantly devoid of curly brackets ❤️

Deploy Vyper Code With Remix

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Thank you.

James Bachini

Disclaimer: Not a financial advisor, not financial advice. The content I create is to document my journey and for educational and entertainment purposes only. It is not under any circumstances investment advice. I am not an investment or trading professional and am learning myself while still making plenty of mistakes along the way. Any code published is experimental and not production ready to be used for financial transactions. Do your own research and do not play with funds you do not want to lose.



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