Python: How to get error messages from SDK?

AlgoSDK
1

Hi all,

I am trying to make a transaction using the Python SDK. It is a simple script run at the command line to make regular payments. But I am struggling to build the transaction.

This is what I have in the try…except block:

algod_client = algod.AlgodClient(algod_token='', 
                                 algod_address='https://mainnet-api.algonode.cloud')
params = algod_client.suggested_params()

try:
    unsigned_txn = transaction.AssetTransferTxn(
        sender=sender_acc,
        sp=params,
        receiver=receiver_acc,
        amt=amount,
        index=asset_id,
        note=b"Test run.",
    )
except Exception as e:
    print("ERROR:", vars(e))

This block of code simply prints out:

ERROR: {}

How do I get better error information? What am I missing?

Thanks in advance.

2

You will get better error information by printing full exception object:

print("ERROR:", e)
3

Thanks for the response.

This is pretty much where I started. It just prints:

ERROR:

and nothing else. Which is why I tried to see if vars() would show me anything else.

Regards

4

I noticed that this is the case when amount is negative. It is a bug in the SDK, error.WrongAmountType does not initialize parent Exception class properly.

Can you perhaps validate the amount separately at the moment?

PS: print(type(e)) helps to deduce the error type even if message is empty.

1 Like
5

Interesting. I have just tried that.

You nailed it. The amount was type string. My bad. I forgot to convert it.

Will have to check the Github and see if this bug has been reported. :slight_smile:

Thanks for all the help. Very much appreciated.