importError

[selcuktopal80]

ImportError: cannot import name 'LedgerClient' from partially initialized module 'cosmpy.aerial.client' (most likely due to a circular import)

due to that error, not able to use or develop any fetchai git.

[jrriehl]

Can you please provide more context so that we can look into this? Some things that would help:

• What command are you running that results in this error?
• Is this the full error trace? If not, can you please provide it?
• What version of Python are you using?
• What is OS / environment are you running this in?

[jrriehl]

Actually, I might have misread this error. It looks like you are only importing LedgerClient and NetworkConfig.

I will try to reproduce this locally.

[jrriehl]

Are you importing anything else from cosmpy in the script cosmos.py either directly or in files that this script imports?

[selcuktopal80]

thx for the answer

my code:

from cosmpy.aerial.client import LedgerClient, NetworkConfig

ledger = LedgerClient(NetworkConfig.fetch_mainnet())

cfg = NetworkConfig(
chain_id="cosmoshub-4",
url="grpc+https://public-seed-node.cosmoshub.certus.one:26656",
fee_minimum_gas_price=1,
fee_denomination="uatom",
staking_denomination="uatom",
)

ledger = LedgerClient(cfg)

balance = ledger.query_bank_balance('fetch12t9ewxmcawvh2q5hysgeezpp9gxfzzryta2k3t')

[selcuktopal80]

I think this happens because cosmpy.aerial.client.bank imports Coin from cosmos.base.v1beta1.coin_pb2, which you are importing in the same script as you import the LedgerClient from cosmpy.aerial.client. Are you only using Coin from cosmos.base.v1beta1.coin_pb2? If so, you could import this with:

from cosmos.aerial.client.bank import Coin

and that will hopefully eliminate the circular import error.

i think it should be from cosmpy.aerial.client.bank import Coin, but not working

[selcuktopal80]

Are you importing anything else from cosmpy in the script cosmos.py either directly or in files that this script imports?

even if i only do solely from cosmpy.aerial.client.bank import Coin , i recieve circular error again

code:

from cosmpy.aerial.client.bank import Coin

ledger = LedgerClient(NetworkConfig.fetch_mainnet())

cfg = NetworkConfig(
chain_id="cosmoshub-4",
url="grpc+https://public-seed-node.cosmoshub.certus.one:26656",
fee_minimum_gas_price=1,
fee_denomination="uatom",
staking_denomination="uatom",
)

ledger = LedgerClient(cfg)

balance = ledger.query_bank_balance('fetch12t9ewxmcawvh2q5hysgeezpp9gxfzzryta2k3t')

error:

(venv) PS C:\Users\selcu\OneDrive\Masaüstü\cosmospy> python cosmos.py
Traceback (most recent call last):
File "C:\Users\selcu\OneDrive\Masaüstü\cosmospy\cosmos.py", line 3, in
from cosmpy.aerial.client.bank import Coin
File "C:\Users\selcu\OneDrive\Masaüstü\cosmospy\venv\lib\site-packages\cosmpy\aerial\client_init_.py", line 32, in
from cosmpy.aerial.client.bank import create_bank_send_msg
File "C:\Users\selcu\OneDrive\Masaüstü\cosmospy\venv\lib\site-packages\cosmpy\aerial\client\bank.py", line 23, in
from cosmpy.protos.cosmos.bank.v1beta1.tx_pb2 import MsgSend
File "C:\Users\selcu\OneDrive\Masaüstü\cosmospy\venv\lib\site-packages\cosmpy\protos\cosmos\bank\v1beta1\tx_pb2.py", line 16, in
from cosmos.base.v1beta1 import coin_pb2 as cosmos_dot_base_dot_v1beta1_dot_coin__pb2
File "C:\Users\selcu\OneDrive\Masaüstü\cosmospy\cosmos.py", line 3, in
from cosmpy.aerial.client.bank import Coin
ImportError: cannot import name 'Coin' from partially initialized module 'cosmpy.aerial.client.bank' (most likely due to a circular import) (C:\Users\selcu\OneDrive\Masaüstü\cosmospy\venv\lib\site-packages\cosmpy\aerial\client\bank.py)

[jrriehl]

So far I haven't been able to reproduce this error.

Can you confirm when you run exactly this code with CosmPy v0.8.0:

from cosmpy.aerial.client import LedgerClient, NetworkConfig

ledger = LedgerClient(NetworkConfig.fetchai_mainnet())

balance = ledger.query_bank_balance('fetch12t9ewxmcawvh2q5hysgeezpp9gxfzzryta2k3t')

you get the same error?

[selcuktopal80]

now it works great, many thx @jrriehl

[jrriehl]

Great to hear! Let us know if you have any more issues.