TypeError: 'NoneType' object cannot be interpreted as an integer

[viponedream]

just run your example code

File "C:\Python310\lib\site-packages\mospy\Transaction.py", line 178, in _get_signer_infos
signer_infos.sequence = self._account.next_sequence
TypeError: 'NoneType' object cannot be interpreted as an integer

import httpx # optional
from mospy import Account, Transaction

account = Account(
seed_phrase="law grab theory better athlete submit awkward hawk state wedding wave monkey audit blame fury wood tag rent furnace exotic jeans drift destroy style",
address_index=12
)

tx = Transaction(
account=account,
gas=1000,
)
tx.set_fee(
amount=100,
denom="uatom"
)

Add a transfer message to the transaction (multiple messages can be added)

tx.add_msg(
tx_type='transfer',
sender=account,
receipient="cosmos1tkv9rquxr88r7snrg42kxdj9gsnfxxg028kuh9",
amount=1000,
denom="uatom"
)

Sign and encode transaction to submit it to the network manually

REST endpoint (RPC or API)

tx_bytes = tx.get_tx_bytes_as_string()

[viponedream]

File "C:\Python310\lib\site-packages\mospy\Transaction.py", line 178, in _get_signer_infos
signer_infos.sequence = self._account.next_sequence

self._account.next_sequence is None, so error happen

but i run your test_transaction.py, it runs well

[ctrl-Felix]

It seems like I forgot to add the sequence in that example. The sequence is a counter indicating how many transactions have been made from the account

[ctrl-Felix]

https://mospy.ctrl-felix.de/examples/

Check out the examples to see how to set it

[viponedream]

your another example set it to 1,
is it like nonce in eth network?
can you write a example to exectue batch transactions?