Followed the installation and running the example.

[haavardf]

sudo apt-get install python3 python3-pip
pip install rp2
Downloaded: crypto_example.ini crypto_example.ods

Ran the suggested command:~/rp2$ ~/.local/bin/rp2_us -m fifo -o output -p crypto_example_ crypto_example.ini crypto_example.ods
INFO: Country: us
INFO: Generation Language: en
INFO: Accounting method: fifo
INFO: Configuration file: crypto_example.ini
INFO: Input file: crypto_example.ods
INFO: Processing BTC
ERROR: Fatal exception occurred:
Traceback (most recent call last):
File "/home/haavard/.local/lib/python3.10/site-packages/rp2/rp2_main.py", line 154, in _rp2_main_internal
computed_data: ComputedData = compute_tax(configuration=configuration, accounting_engine=accounting_engine, input_data=input_data)
File "/home/haavard/.local/lib/python3.10/site-packages/rp2/tax_engine.py", line 47, in compute_tax
return ComputedData(
File "/home/haavard/.local/lib/python3.10/site-packages/rp2/computed_data.py", line 222, in init
self.__filtered_balance_set: BalanceSet = BalanceSet(unfiltered_taxable_event_set.configuration, input_data, to_date)
File "/home/haavard/.local/lib/python3.10/site-packages/rp2/balance.py", line 172, in init
raise RP2ValueError(
rp2.rp2_error.RP2ValueError: BTC balance of account "Coinbase" (holder "Bob") went negative (-0.30000000000) on the following transaction: OutTransaction:
id=15
timestamp=2020-02-11 19:58:00.000000 +0000
asset=BTC
exchange=Coinbase
holder=Bob
transaction_type=TransactionType.SELL
spot_price=12200.0000
crypto_out_no_fee=1.00000000
crypto_fee=0.00000000
unique_id=
is_taxable=True
fiat_taxable_amount=12200.0000

[haavardf]

I just updated ID 4 from 1 BTC to 5 BTC and the example works well. I am happy to set up the project and try to help out while I am testing it. Never really done python, but that should be OK.

[jayr0d]

Although crypto_example.ods has not changed in two years, it seems the Coinbase wallet does in fact go negative. Bob bought 1 BTC, sold 0.2, transferred 0.1 to BlockFi, and at this point has 0.7 BTC in Coinbase. He then sold 1 BTC, which results in a negative balance for Coinbase of 0.3. Prior to this, he bought 2 BTC on BlockFi.

There was likely a code change at some point where RP2 was previously looking at asset balance in aggregate (all Exchanges) and now looks at asset balance per Exchange.

I suggest you make some changes to crypto_example.ods and submit a pull request. I would suggest changing it from 1 to something smaller than 5. Maybe try 0.7 and see if it errors out elsewhere.

[eprbell]

You have to run the command with the -n option which allows negative balances:

rp2_us -n -m fifo -o output -p crypto_example_ crypto_example.ini crypto_example.ods

The reason for the introduction of -n is explained in #106.

The problem here was that the README.md hadn't been updated to reflect that -n should be used with crypto_example: I just fixed that so that this should not happen again. Thanks for reporting.

[jayr0d]

Thanks for catching my oversight :)

[eprbell]

Not an oversight: there was a bit of missing info in the docs, so thanks for pointing that out!