ethereum/web3.py

https://web3py.readthedocs.io/

Crypto Gnome

@CryptoGnome

also it's weird because if i just put in 1 there it works, but i don't have enough eth in my wallet

uniswap.uniswap.InsufficientBalance: Insufficient balance. Had 5626200000000000, needed 100000000000000000

    def buy(self, pair):
        print("BUYING PAIR")
        tradeamount = client.toWei(settings.amount, 'ETHER')
        data = [
            settings.eth[0],
            settings.chart[0],
            tradeamount,
            settings.address
        ]
        print(data)
        trade = uniswap_wrapper.make_trade(settings.eth[0], settings.chart[0], tradeamount, settings.address)

Marc Garreau

@marcgarreau

if this is the library you’re using, their examples include *10**18

Crypto Gnome

@CryptoGnome

@marcgarreau appreciate the help by the way, it is very tough to find coders using python

yes it is

Marc Garreau

@marcgarreau

we’re working to grow that number ;)

anyway, your first issue is “resolved”. on to the next one

Crypto Gnome

@CryptoGnome

hoild that thought haha

Marc Garreau

@marcgarreau

100000000000000000 wei == .1 ether; your wallet apparently has less

Crypto Gnome

@CryptoGnome

hmmm when i try weth it fails

OverflowError: Python int too large to convert to C ssize_t

Marc Garreau

@marcgarreau

indeed the .0056 eth corresponds with the earlier error, displayed in wei. that ssize_t error could be a bug in web3, though. reproduction code and any other context would be helpful (less likely to get lost in the shuffle if its in an issue. you can tack it on to this issue, if you like: ethereum/web3.py#1699)

Crypto Gnome

@CryptoGnome

aha perhaps it is just with that pair?

this has been killing me because I was reading docs/examples and have not been able to get it figured out

Marc Garreau

@marcgarreau

aha perhaps it is just with that pair?

not sure, but if you’re able to test other pairs, that additional context would only be helpful. if not, no big deal.

Crypto Gnome

@CryptoGnome

yea it happened when i built my own wrapper the first time

https://etherscan.io/tx/0x0c7f5388ffbb6156cdfec99bcd94c7f9c63313a88ce505edf9538d2ca5593c24

welp that worked

weird so its an issue with Wrapped Eth in the package maybee

Marc Garreau

@marcgarreau

/shrug file an issue (or add to that open one) if you want us to take a deeper look when time permits

kclowes

@kclowes

@CryptoGnome what were the args you passed when it worked?

Crypto Gnome

@CryptoGnome

        tradeamount = client.toWei(settings.amount, 'ETHER')
        data = [
            settings.eth[0],
            settings.chart[0],
            tradeamount,
            settings.address
        ]

```

kclowes

@kclowes

gotcha. wasn't looking close enough. thanks, that helps!

Crypto Gnome

@CryptoGnome

is there a simple way to get the balance of an ERC20 ?

Marc Garreau

@marcgarreau

https://web3py.readthedocs.io/en/stable/examples.html#query-account-balances

Crypto Gnome

@CryptoGnome

thanks came up with this

    def check_balance(self, pair):
        address = pair[0]
        abi = requests.get("http://api.etherscan.io/api?module=contract&action=getabi&address=" + address + "&format=raw&apikey=" + settings.etherscanApi).json()
        balanceContract = client.eth.contract(address=address, abi=abi)
        balance = balanceContract.functions.balanceOf(settings.address).call()
        print(balance)

Crypto Gnome

@CryptoGnome

you guys rock thank you so much for the help

Marc Garreau

@marcgarreau

:metal: good luck out there!

Crypto Gnome

@CryptoGnome

thank you, trying to find out how to grab you default wallet address as well

so instead of declaring it it would use what you authenticate with

arjuna sky kok

@arjunaskykok_gitlab

By the way, I got stuck when creating tests that involved with sending ethers. I used eth-tester. Sending ethers in EthereumTesterProvider does not update the balance of the accounts. Any idea? I have created a bug. ethereum/eth-tester#193

Okay, I decided to use Ganache CLI to complement eth-tester so I can test the balance of the accounts. https://mamba.black/documentation/testing-ganache-cli/

arjuna sky kok

@arjunaskykok_gitlab

By the way, I got stuck when creating tests that involved with sending ethers. I used eth-tester. Sending ethers in EthereumTesterProvider does not update the balance of the accounts. Any idea? I have created a bug. ethereum/eth-tester#193

Okay, It's me who is wrong. eth-tester is innocent. It works fine and can update the balance of the accounts.
The problem is I treat web3 object as singleton.

w3_1st = Web3(Web3.HTTPProvider('http://127.0.0.1:8545'))
w3_2nd = Web3(Web3.HTTPProvider('http://127.0.0.1:8545'))

We can interact with both objects as if they are the same. But not with EthereumTesterProvider.

w3_1st = Web3(EthereumTesterProvider())
w3_2nd = Web3(EthereumTesterProvider())

w3_1st has a different world than w3_2nd has. Haha. I'm a turkey.

Mikko Ohtamaa

@miohtama

@arjunaskykok_gitlab How is the life of a bird? :)

arjuna sky kok

@arjunaskykok_gitlab

Waiting to be slaughtered.

Eth-Gitter-Bridge

@Eth-Gitter-Bridge

<Piper Merriam> 🦃

<Piper Merriam> I'd be careful thinking about Web3 as any kind of singleton in any kind of context. There will be a lot of foot-gun situations if you write code with this assumption. For example, even in the HTTPProvider situation you outline, if you were to install a middleware on one of them, or set a default from account, then the two would behave differently. Web3 objects are stateful and should be treated as such.

arjuna sky kok

@arjunaskykok_gitlab

EthereumTesterProvider(): w3.testing.snapshot() -> 0
Ganache CLI: w3.testing.snapshot() -> 1

Any idea why? I mean, I can check if EthereumTesterProvider do this else if Ganache CLI do that. I'm just curious.

Marwan Osama

@MarwanOsama97_gitlab

I got this error while trying to access a function of deployed function using ropston test
web3.exceptions.BadFunctionCallOutput: Could not transact with/call contract function, is contract deployed correctly and chain synced?

I am check the same function from remix it's working so good

Fabrice Cheng

@fabdarice

Hello everyone,
Running a geth node with --ws.api "eth,net,web3,txpool" and --http.api "eth,net,web3,txpool".

This command works fine: w3.geth.txpool.inspect()
But this one timeout, any idea?

w3.geth.txpool.content()
*** concurrent.futures._base.TimeoutError

There's an existing github issue: ethereum/web3.py#1556

kimmoonseok

@kimmoonseok

hello everyone,
my private ethereum network is hacked.
Have you ever had this experience?

arjuna sky kok

@arjunaskykok_gitlab

So in my Twitter feeds, people have gone nuts over NFTs after yield farming craziness. Here is the tutorial on creating NFTs (ERC721 tokens) with Vyper and Web3.py: https://mamba.black/documentation/creating-erc721-tokens-or-non-fungible-tokens-nft-vyper-and-web3py-part-1/

Btw, I encountered some bugs with eth-tester. Lemme share it later.

arjuna sky kok

@arjunaskykok_gitlab

This is the bug with eth-tester: ethereum/eth-tester#198 @pipermerriam
It's related with the previous bug I reported: ethereum/eth-tester#193

Just some guy

@fubuloubu

So in my Twitter feeds, people have gone nuts over NFTs after yield farming craziness. Here is the tutorial on creating NFTs (ERC721 tokens) with Vyper and Web3.py: https://mamba.black/documentation/creating-erc721-tokens-or-non-fungible-tokens-nft-vyper-and-web3py-part-1/

awesome!

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