https://github.com/beancount/beancount/issues/602

On Mon, Jan 4, 2021 at 11:36 AM Martin Blais <[email protected]> wrote:

> On Mon, Jan 4, 2021 at 10:40 AM Peter <[email protected]> wrote:
>
>> To be frank, I think I don't fully understand your reply to the problem.
>>
>
> Just showing how to debug the issue.
>
>
>>
>> The context of the first transaction is just fine, yes.
>> The only USDT lot in the Assets:Crypto:USDT:Binance account is reduced by
>> the 0.134… USDT and expenses are correctly set.
>>
>
> These are the changes you're applying to that account:
>
>     Assets:Crypto:USDT:Binance    134.40876000 USDT {0.83159490 EUR} @
> 0.83159490 EUR
>     Assets:Crypto:USDT:Binance     -0.13440876 USDT {0.83159490 EUR} @
> 0.83159490 EUR
>
>     Assets:Crypto:USDT:Binance    436.86293686 USDT {0.83161458 EUR} @
> 0.83161458 EUR
>     Assets:Crypto:USDT:Binance     -0.43686294 USDT {0.83161458 EUR} @
> 0.83161458 EUR
>
> The problem is a subtle issue with self-reductions (reductions of a
> position added within the transaction itself).
> Reductions are applied on the inventories before the transaction, and not
> in order.
> It's a very long explanation why in the general case it's not trivial to
> just apply them within the transaction, but I think that's the problem, the
> 4th posting is attempting to reduce the inventory resulting from the first
> two, it doesn't see the 3rd one.
>
> I'd like to come up with a better (and still general) booking algorithm in
> v3, which handles this.
>
>
>
>
>>
>> But it's not just about bean-context/the context of the first txn. I
>> imported several transactions of this "type".
>> This "breaks" the whole file (I'm getting a "bazillion" errors of this
>> type) and thus a proper calculation of PnL and remaining lots, etc — or am
>> I mistaken?
>>
>
> Yes if you do the same everywhere you'll encounter the same issue
>
>
>
>> I don't understand why beancount isn't able to find the lot in the second
>> txn. I mean, it did find the right one in the first txn?
>>
>> Isn't there anything I could do? Except separating the txn into an
>> "actual txn" and fee txn?
>> Having to rewrite all of the txn to separate the actual transaction and
>> the fees would be cumbersome and I really dislike the idea to have
>> separated trade and fee expense transactions.
>>
>
> Not sure I have a great solution for you right now
> Wait for v3
> Or split them
>
>
>>
>>
>>
>> ards
>>
>> [email protected] schrieb am Montag, 4. Januar 2021 um 15:15:37 UTC+1:
>>
>>> The context command will not work on the last txn because of the way
>>> errors are handled right now (will be fixed in v3 with parser changes), but
>>> you can get context on the prior transaction to see the remaining
>>> inventory's balances which are going to be the input to the last
>>> transaction to match against.
>>>
>>>
>>> bean-doctor context btc2.beancount 17
>>> Hash:64d489e8797bf562fdc15f7a890fe5e5
>>> Location: /home/blais/r/q/beancount-data/user/tobiash/btc2.beancount:10
>>>
>>> ------------ Balances before transaction
>>>
>>>   Assets:Crypto:BTC:Binance                      0.1 BTC {16000 EUR,
>>> 2020-12-15}
>>>
>>>   Assets:Cash:Binance
>>>
>>>   Assets:Crypto:USDT:Binance
>>>
>>>   Expenses:Commission:Binance
>>>
>>>   Income:Day-trading
>>>
>>>
>>> ------------ Transaction
>>>
>>>
>>> 2020-12-17 * "Trade BTCUSDT: SELL BTC for USDT"
>>>   orderId: "123456789-01"
>>>   time: "08:50 "
>>>   Assets:Cash:Binance           111.77364000 EUR
>>>                                ;         111.77364000 EUR
>>>   Assets:Crypto:BTC:Binance      -0.00600000 BTC {16000.00000000 EUR,
>>> 2020-12-15} @ 18628.94000000 EUR  ;         -96.00000000 EUR
>>>   Assets:Crypto:USDT:Binance    134.40876000 USDT {0.83159490 EUR,
>>> 2020-12-17} @ 0.83159490 EUR         ; 111.7736393313240000 EUR
>>>   Assets:Cash:Binance          -111.77364000 EUR
>>>                                ;        -111.77364000 EUR
>>>   Assets:Crypto:USDT:Binance     -0.13440876 USDT {0.83159490 EUR,
>>> 2020-12-17} @ 0.83159490 EUR         ;  -0.1117736393313240 EUR
>>>   Expenses:Commission:Binance     0.13440876 USDT @ 0.83159490 EUR
>>>                                ;   0.1117736393313240 EUR
>>>   Income:Day-trading            -15.77363933 EUR
>>>                                ;         -15.77363933 EUR
>>>
>>>
>>> Residual: (0.0000000013240000 EUR)
>>> Tolerances: BTC=5E-9, EUR=5E-9, USDT=5E-9
>>> Basis: (15.6618656919926760 EUR)
>>>
>>> ------------ Balances after transaction
>>>
>>> * Assets:Crypto:BTC:Binance               0.09400000 BTC {16000 EUR,
>>> 2020-12-15}
>>>
>>>   Assets:Cash:Binance
>>>
>>> * Assets:Crypto:USDT:Binance      134.27435124 USDT {0.83159490 EUR,
>>> 2020-12-17}
>>>
>>> * Expenses:Commission:Binance
>>>  0.13440876 USDT
>>>
>>> * Income:Day-trading
>>>  -15.77363933 EUR
>>>
>>>
>>> On Mon, Jan 4, 2021 at 8:56 AM Peter <[email protected]> wrote:
>>>
>>>> Hi,
>>>>
>>>> having the following example file, I'm getting the error:
>>>>
>>>> Test.bean:21:      No position matches
>>>> "Posting(account='Assets:Crypto:USDT:Binance', units=-0.43686294 USDT,
>>>> cost=CostSpec(number_per=Decimal('0.83161458'), number_total=None,
>>>> currency='EUR', date=None, label=None, merge=False), price=0.83161458 EUR,
>>>> flag=None, meta={'filename':
>>>> '/media/Daten/03-Finanzen/00-Beancount/Test.BTCUSDT2.bean', 'lineno': 28})"
>>>> against balance (134.27435124 USDT {0.83159490 EUR, 2020-12-17})
>>>>
>>>> *File*
>>>>
>>>> option "booking_method" "FIFO"
>>>> option "operating_currency" "EUR"
>>>> plugin "beancount.plugins.auto_accounts"
>>>>
>>>> 2020-12-15 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     Assets:Crypto:BTC:Binance              0.1 BTC {16000 EUR} @ 16000
>>>> EUR
>>>>     Equity:Opening                        -0.1 BTC {16000 EUR} @ 16000
>>>> EUR
>>>>
>>>> 2020-12-17 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     time: "08:50 "
>>>>     orderId: "123456789-01"
>>>>     Assets:Cash:Binance           111.77364000 EUR
>>>>     Assets:Crypto:BTC:Binance      -0.00600000 BTC {} @ 18628.94000000
>>>> EUR
>>>>     Assets:Crypto:USDT:Binance    134.40876000 USDT {0.83159490 EUR} @
>>>> 0.83159490 EUR
>>>>     Assets:Cash:Binance          -111.77364000 EUR
>>>>     Assets:Crypto:USDT:Binance     -0.13440876 USDT {0.83159490 EUR} @
>>>> 0.83159490 EUR
>>>>     Expenses:Commission:Binance     0.13440876 USDT  @ 0.83159490 EUR
>>>>     Income:Day-trading
>>>>
>>>>
>>>> 2020-12-17 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     time: "08:50 "
>>>>     orderId: "123456789-02"
>>>>     Assets:Cash:Binance           363.30158788 EUR
>>>>     Assets:Crypto:BTC:Binance      -0.01950200 BTC {} @ 18628.94000000
>>>> EUR
>>>>     Assets:Crypto:USDT:Binance    436.86293686 USDT {0.83161458 EUR} @
>>>> 0.83161458 EUR
>>>>     Assets:Cash:Binance          -363.30158788 EUR
>>>>     Assets:Crypto:USDT:Binance     -0.43686294 USDT {0.83161458 EUR} @
>>>> 0.83161458 EUR
>>>>     Expenses:Commission:Binance     0.43686294 USDT  @ 0.83161458 EUR
>>>>     Income:Day-trading
>>>>
>>>> I can't figure out why I'm gettig the error because the transaction is
>>>> basically the same as the first one.  And the first transaction parses
>>>> without error.
>>>> Furthermore, if I "split" the second transaction and move the
>>>> commission expenses into a seperate transaction, I'm getting no error:
>>>>
>>>> option "booking_method" "FIFO"
>>>> option "operating_currency" "EUR"
>>>> plugin "beancount.plugins.auto_accounts"
>>>>
>>>> 2020-12-15 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     Assets:Crypto:BTC:Binance              0.1 BTC {16000 EUR} @ 16000
>>>> EUR
>>>>     Equity:Opening                        -0.1 BTC {16000 EUR} @ 16000
>>>> EUR
>>>>
>>>> 2020-12-17 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     time: "08:50 "
>>>>     orderId: "123456789-01"
>>>>     Assets:Cash:Binance           111.77364000 EUR
>>>>     Assets:Crypto:BTC:Binance      -0.00600000 BTC {} @ 18628.94000000
>>>> EUR
>>>>     Assets:Crypto:USDT:Binance    134.40876000 USDT {0.83159490 EUR} @
>>>> 0.83159490 EUR
>>>>     Assets:Cash:Binance          -111.77364000 EUR
>>>>     Assets:Crypto:USDT:Binance     -0.13440876 USDT {0.83159490 EUR} @
>>>> 0.83159490 EUR
>>>>     Expenses:Commission:Binance     0.13440876 USDT  @ 0.83159490 EUR
>>>>     Income:Day-trading
>>>>
>>>>
>>>> 2020-12-17 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     time: "08:50 "
>>>>     orderId: "123456789-02"
>>>>     Assets:Cash:Binance           363.30158788 EUR
>>>>     Assets:Crypto:BTC:Binance      -0.01950200 BTC {} @ 18628.94000000
>>>> EUR
>>>>     Assets:Crypto:USDT:Binance    436.86293686 USDT {0.83161458 EUR} @
>>>> 0.83161458 EUR
>>>>     Assets:Cash:Binance          -363.30158788 EUR
>>>>     ; Assets:Crypto:USDT:Binance             -0.43686294 USDT
>>>> {0.83161458 EUR} @ 0.83161458 EUR
>>>>     ; Expenses:Commission:Binance     0.43686294 USDT  @ 0.83161458 EUR
>>>>     Income:Day-trading
>>>>
>>>> 2020-12-17 * "" "Trade BTCUSDT: SELL BTC for USDT"
>>>>     Assets:Crypto:USDT:Binance     -0.43686294 USDT {0.83161458 EUR} @
>>>> 0.83161458 EUR
>>>>     Expenses:Commission:Binance     0.43686294 USDT  @ 0.83161458 EUR
>>>>
>>>> What am I doing wrong in the second transaction that beancount can't
>>>> figure out the correspoding lot?
>>>>
>>>> Regards
>>>>
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