Why is sign_transaction giving me this Error? Question: So the problem with my code is when i execute the signed_tx, it starts giving me errors, everything else works fine before that because i have printed everything and it is how it should be, so that is why i do not understand why does it suddenly …
Hedera-sdk-py Smart Contract Deployment and Querying Question: I am creating a DApp on the Hedera Blockchain using Hedera-sdk-py, a python wrapper of Hedera SDK in Java. I want to create a smart contract, deploy and query it, but I can not seem to understand the stateful.json file in the documentation (https://github.com/wensheng/hedera-sdk-py). Is the stateful.json a …
Can't call smart contract from Python Question: I’m trying to call an Algorand smart contract from with python. I can’t get my private key using mnemonic why that? I’m using Python and I’m trying this command: private_key = algosdk.mnemonic.to_private_key(‘word1, word2, word3, etc…) it does not work. would really appreciate some help here. Asked By: Web …
How to get the price of BSC token directly the token pool contract in web3.py Question: I’m trying to get the price of some BSC token directly from the contract. Doing some searches, I found a mix of ideas with the snippet below. I’m sure the code is off because when I checked on https://pancakeswap.finance/swap …
smart contract with brownie gives VirtualMachineError Question: I encontered a problem when I test my project, any help would be greatly appreciated. All my code can be found in here: https://github.com/Karlus44/smartcontract-lottery When I type the command brownie test my script tests/test_lottery_unit.py is exectuted, and my different tests are submitted. Here some quotes of my logout: …
Brownie: CompilerError: File outside of allowed directories Question: I’m trying to import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol" to my contract but i encountered this error. CompilerError: solc returned the following errors: contracts/Lottery.sol:4:1: ParserError: Source "C:/Users/Алексей/.brownie/packages/smartcontractkit/chainlink-brownie [email protected]/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol" not found: File outside of allowed directories. import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol"; ^————————————————————————–^ This is my contract (Lottery.sol): // SPDX-License-Identifier: MIT pragma solidity ^0.6.6; import "@chainlink/contracts/src/v0.6/interfaces/AggregatorV3Interface.sol"; …
The transaction declared chain ID 5777, but the connected node is on 1337 Question: I am trying to deploy my SimpleStorage.sol contract to a ganache local chain by making a transaction using python. It seems to have trouble connecting to the chain. from solcx import compile_standard from web3 import Web3 import json import os from …
ParserError: Source file requires different compiler version Question: I tried all that you mentioned in the discussion here (in other questions) and at https://github.com/smartcontractkit/full-blockchain-solidity-course-py/discussions/522 , however it is not solving the issue for me, I also noticed that the current compiler version remains (current compiler is 0.6.12+commit.27d51765.Windows.msvc). But when I right click and select Solidty:Compiler …
I couldn't get results when I write compiled code in Visual Studio Code, I run python deploy.py and it gives me error. what I have to edit in my code Question: I have just started coding and it seems that there is something missing in the code, this is a compiled code. the error message …
'code': -32603, 'message': 'Error: Transaction reverted without a reason string' while i'm trying to use swapExactTokensForTokens UNISWAP Question: I have read documentation on this function. I’m using Hardhat to visualize Blockchain at a particular moment. I deposit() ETH to WETH, then I approve() WETH to router. Everything looks fine. But when i try to call …
