Web3.py is a library for interacting with EVM based blockchains and smart contracts in Python.
For more information see Web3.py documentation.
Web3.py is maintained by Ethereum Foundation.
Questions tagged [web3py]
578 questions
-1
votes
1 answer
python exec() raises SyntaxError exception when passing an object inside the string argument
So I am currently trying to deploy my smart contract using a brownie script as shown in the code below:
from brownie import accounts, network
import sys
sys.path.append("../")
import globalVars
def main():
import_str = "from {0} import…
mnsdali
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- 2
-1
votes
1 answer
Getting an 'unexpected keyword argument' when deploying the python code using py-solcx for smart contracts
I'm new to Solidity and Smart contracts stuff.
The code is taken from the repository provided by PatrickAlphaC under here
This is the code snippet I'm currently using.
from solcx import compile_standard, install_solc
install_solc("0.6.0")
with…
Rohan Gautam
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- 1
-1
votes
1 answer
how to call smart contract function. python web3
https://polygonscan.com/tx/0x0a37f5af0aa5b15431e339a7dc4ce3bdc77f229e8bd69025a4740812e0c55e6f
the transaction name that appears in the metamaks is collect_from_tiles.
looking for this function in the contract. I noticed that she is in another…
Dion
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-1
votes
1 answer
How to transfer ERC1155 token using web3py?
I need to transfer an ERC1155 token using Python... something very simple: send token from account1 to account2 using python.
Token: ERC 1155
Network: Polygon
Language: Python
Could someone please leave an example how to do it?
from web3 import…
tripposters
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-1
votes
1 answer
how to interact with smart contract correctly in python
i was trying to write a trading bot with x2y2 api, one instruction from x2y2 confused me:
Before creating listings, the signer must approve the item's transfer by the X2Y2: ERC 721 Delegate contract with the setApprovalForAll function on the item's…
对亮星
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-1
votes
2 answers
Web3.py check liquidity pool balance
I'm trying to compute the balance of a lp address given the address of the token.
So I have this function:
web3 = Web3(Web3.HTTPProvider("https://bsc-dataseed.binance.org/"))
def CheckLiquidity(TokenAddress, web3):
LPAddress =…
mandiatodos
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-1
votes
1 answer
is there a way to write these python codes for a transaction created, having a constructor? i get a syntax error with these
transaction = SimpleStorage.constructor{}.buildTransaction(
("chainId": chain_id, "from": my_address, "nonce": nonce)
)
print(transaction)
-1
votes
4 answers
How to extract a word from a string in python
Im getting functions from a smart contract in this format
I print them out in a loop:
allFunctions = contract.all_functions()
for text in allFunctions:
print(text)
Joe Blow
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- 6
-1
votes
1 answer
WETH Transaction does not appear in the web3.eth.get_transaction
I am trying to understand how can I see the amount of WETH transferred in a transaction. for example on OpenSea. When you go to etherscan you can see the amount. but if you use web3.eth.get_transcation(tx_hash) you will find the value to be 0 (…
makoki
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-1
votes
2 answers
ContractsNotFound: Input JSON does not contain any sources
I'm trying to run this in the VS Code terminal for a Solidity Tutorial. Is there an error with my code, or could this be an issue with my environment?
Code:
from solcx import compile_standard, install_solc
with open("./SimpleStorage.sol", "r") as…
oliveruf42
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- 1
-1
votes
2 answers
Multiple transfers within one transaction?
I am writing a program in Python using the web3 library, which needs to make several translations in a single transaction. Here is an example. But I didn't find anything about it in the documentation. Some examples do several transactions through a…
layomo5156
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votes
2 answers
TypeError: 'type' object is not subscriptable web3.py
Hey I am getting TypeError: 'type' object is not subscriptable when trying to print SimpleStorage.I am using env, my python version is 3.10.0 n the library is web3.py idk if this is enough this is my first q on stakeoverflow
from solcx import…
3lii06
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votes
1 answer
Pending tx in txpool but later tx used the nonce
I have an odd issue after submitting some txs and them being in the 'pending' state but other txs used the nonces in those pending txs.
If I use web3 to get the txpool using web3.geth.txpool.content(), I see several entries from my address in the…
Netman
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-1
votes
1 answer
How do I update an api call within a while loop?
I am doing a simple request that returns a confirmation number from a blockchain using a random hash from polygonscan.
The problem I have is with the while loop, it keeps looping with the same confirmation number and not updating the true number…
axell2017
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- 5
-1
votes
1 answer
private key on bsc network
i am using python with web3 for development. but it requires a private key, where can i find this private key.
i am using //bsc-data seed from binance RPC.
in ethereum there is infura...but in binance i cant figure out how to obtain this private…
FSO
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