Commit Graph

1874 Commits

Author SHA1 Message Date
Janos
812eb229df plot-profit: Make "auto-open" HTML result optional
Adding an "--auto-open" argument.
This improves tool processing of the results, while still allowing to open the HTML file for easy use.
2021-06-02 21:33:26 +02:00
Janos
80af6e43e4 test-pairlist: remove non-JSON headline from JSON output 2021-06-02 21:02:21 +02:00
Matthias
387f3bbc5d Adjust missed tests 2021-06-02 11:43:47 +02:00
Matthias
bd1984386e Move get_sell_rate to exchange class 2021-06-02 11:41:13 +02:00
Matthias
12916243ec Move get_buy_rate to exchange class 2021-06-02 11:30:19 +02:00
Eugene Schava
79552a93fe telegram: move the most important information to the top of sell message
fixed tests
2021-06-01 20:17:11 +03:00
Matthias
f920c26802 fix Hyperopt-list avg-time filters
These should use a numeric field (which currently isn't available).

closes #5061
2021-05-31 20:01:40 +02:00
Matthias
2d7ccaeb3d Add test for load_config 2021-05-30 20:14:54 +02:00
Matthias
06b59551b0 Improve test coverage 2021-05-30 20:14:54 +02:00
Matthias
e17e35f0ef
Merge pull request #5046 from freqtrade/list_strategy_hyperopt
allow list-strategies to show if params are hyperoptable
2021-05-30 16:36:31 +01:00
Matthias
901d984ee3 Tests should write to tmpdir, not testdir 2021-05-30 16:26:24 +02:00
Matthias
08f96df3ac Don't write to testdir, but to tempdir 2021-05-30 08:43:14 +02:00
Matthias
d7fdc2114a allow list-strategies to show if params are hyperoptable 2021-05-29 13:27:08 +02:00
Matthias
313567d07d Support having numbers in custom keyboard 2021-05-29 08:12:25 +02:00
Matthias
8a56af9192 Update onlyprofit loss should use absolute profit
closes #4934
2021-05-28 08:38:46 +02:00
Matthias
7bfe935e37
Merge pull request #4838 from Antreasgr/fix-encoding-issue
Fix bug in running hyperopt in windows 10
2021-05-27 14:57:36 +01:00
Matthias
a89364aa98 Merge branch 'develop' into pr/Antreasgr/4838 2021-05-27 14:59:39 +02:00
Matthias
3014bc3467 Don't use Sum sign in hyperopt to avoid compatibility problems 2021-05-27 14:22:11 +02:00
Matthias
b82f7a2dfd Update orders-migrations to work with new sqlalchemy syntax 2021-05-27 11:38:28 +02:00
Matthias
a01d05997e Add Trade.commit method for easy use 2021-05-27 11:38:28 +02:00
Matthias
c31cb67118 Further changes for sqlalchemy 1.4 2021-05-27 11:38:28 +02:00
Matthias
8bef7217ec Forgot to save :O 2021-05-27 11:24:01 +02:00
Matthias
a6cd353655 Address random ci failure 2021-05-27 11:22:22 +02:00
Matthias
f760b4a789 Merge branch 'develop' into pr/gmatheu/4746 2021-05-23 16:03:11 +02:00
Matthias
77302ea178 Update documentation for forcebuy query 2021-05-23 16:01:49 +02:00
Matthias
a39860e0de Add tests for rejected signals 2021-05-23 14:15:02 +02:00
Matthias
02faeb60a3
Merge pull request #4943 from rokups/rk/statistics
Extra statistics
2021-05-23 08:38:27 +01:00
Matthias
916ece6a29 More realistic testcase for results 2021-05-23 09:15:36 +02:00
Matthias
765c824bfc isort 2021-05-22 17:25:23 +02:00
Rokas Kupstys
25cc4eae96 Fix tests that broke after table formatting changed. 2021-05-22 15:25:37 +02:00
A. Schueler
be13856171 Fix flake8 error in test_fiat_convert 2021-05-22 13:43:48 +02:00
A. Schueler
e4ca944597 Add tests for coingecko backoff 2021-05-22 12:04:24 +02:00
Matthias
df0928c8b5
Merge pull request #4992 from freqtrade/buy_partial_fill
Don't cancel low partial filled buy
2021-05-22 09:17:04 +01:00
Matthias
44bbc0718e CLosing bracket 2021-05-21 20:54:18 +02:00
Matthias
a7216e6279 SQLite does not know drop column 2021-05-21 20:53:38 +02:00
Matthias
41e3233bab Fix failing test 2021-05-21 20:44:11 +02:00
Matthias
6acb2eb2b6 Add average column to orders table 2021-05-21 20:35:39 +02:00
Matthias
4e94d3d3e5 Add test for too small buy check 2021-05-21 19:49:36 +02:00
Rokas Kupstys
e1dc1357ce Add drawdown column to strategy summary table. 2021-05-21 11:36:23 +03:00
Matthias
ccd705bfda
Merge pull request #4962 from eschava/total_row
Total row for telegram "/status table" command
2021-05-21 08:02:30 +02:00
Matthias
586f2a699d
Merge pull request #4953 from freqtrade/value_filter
max-value change filter
2021-05-20 06:35:34 +02:00
Matthias
ef4d1c24d7
Merge pull request #4941 from brookmiles/fix-stoploss-above-candle
prevent backtest stoploss trade price being set above candle high
2021-05-19 06:20:35 +02:00
Matthias
7a9853bfe1 Fix "Too many open Files" exception 2021-05-18 20:39:55 +02:00
Matthias
2565f91bc2 Adjust tests to reflect new stoploss behaviour 2021-05-18 19:33:17 +02:00
Matthias
6aa574fa2b Convert ROI result to proper json object
closes #4952
2021-05-17 20:58:50 +02:00
Matthias
6659a07079 Add tests for max-value filter 2021-05-17 19:47:57 +02:00
Matthias
369f19df6b Add valuefilter to Pricefilters 2021-05-17 19:44:36 +02:00
Eugene Schava
459fae6d80 Total row for telegram "/status table" command
fixes
2021-05-17 16:22:48 +03:00
Eugene Schava
3ad8fa2f38 Total row for telegram "/status table" command
moved sum calculation to API
2021-05-17 15:59:03 +03:00
Matthias
37b71b8cfd Fix PerformanceFilter failing in test-pairlist mode 2021-05-16 19:55:13 +02:00
Matthias
c9ac67e985 Fix some typos 2021-05-16 14:50:25 +02:00
Matthias
8f8d5dbff5 Add tests for sl_order_with_result 2021-05-16 14:41:50 +02:00
Matthias
6f38976470 Introduce cancel_stoploss_with_result 2021-05-16 14:15:24 +02:00
Matthias
0b1dd0d203 Use correct order_id for ftx
closes #4511
2021-05-16 09:15:25 +02:00
Matthias
2d7735ba04 Update telegram to sort performance by absolute performance 2021-05-15 19:49:21 +02:00
Matthias
6b2a38ccfb Add absolute Profit to apiserver 2021-05-15 19:39:46 +02:00
Matthias
4f968b4a6f
Merge pull request #4926 from rokups/rk/misc-fixes
Two fixes
2021-05-15 15:11:07 +02:00
Rokas Kupstys
2d5f465f1b Fix protections being loaded multiple times for first strategy when backtesting. 2021-05-15 13:37:03 +03:00
Matthias
e1447f955c /locks should always respond, even if there's no locks
closes #4942
2021-05-15 10:50:00 +02:00
Matthias
a6c644161d
Merge pull request #4930 from freqtrade/hyperopt_memory
Hyperopt memory problems
2021-05-15 07:12:57 +02:00
Matthias
09756e3007 Subplots should always be included in responses 2021-05-14 06:36:50 +02:00
Matthias
5f5597b93f Better test hyperopt writing and reading 2021-05-12 19:06:09 +02:00
Matthias
06bf1aa274 Store epochs as json per line 2021-05-12 05:58:25 +02:00
Matthias
7398ea88e0 Change optimize_reports to convert dates to string earlier 2021-05-11 20:37:49 +02:00
Matthias
b81f24d9c6
Merge pull request #4851 from rokups/rk/backtest-dataprovider
Data provider support in backtesting
2021-05-10 19:11:05 +02:00
Matthias
1c408c0404 Add small tests for backtest mode 2021-05-09 19:47:37 +02:00
Matthias
2157923aee have edge send multiple messages if necessary
closes #4519
2021-05-08 19:45:34 +02:00
Matthias
4b6cd69c81 Add test for no-exchange dataprovider 2021-05-08 10:29:47 +03:00
Rokas Kupstys
cdfa6adbe5 Store pair datafrmes in dataprovider for backtesting. 2021-05-08 10:29:47 +03:00
Rokas Kupstys
dc6e702fec Pass current_time to confirm_trade_entry/confirm_trade_exit. 2021-05-08 10:29:47 +03:00
Rokas Kupstys
d34da3f981 Revert "Add dataframe parameter to custom_stoploss() and custom_sell() methods."
This reverts commit 595b8735f8.

# Conflicts:
#	freqtrade/optimize/backtesting.py
#	freqtrade/strategy/interface.py
2021-05-08 10:29:47 +03:00
Matthias
513be11fd9 Fix hyperopt output
closes #4892
2021-05-07 20:23:11 +02:00
Matthias
554f5f14b6 Raise exception if no data is left 2021-05-07 06:41:15 +02:00
Matthias
a710b7dc01 Update tests to match new behaviour 2021-05-05 19:58:45 +02:00
Matthias
da47f4e1a4 Fix Kraken balance update error
closes #4873
2021-05-05 06:47:26 +02:00
Matthias
da574e4e69 Small style fixes 2021-05-03 06:30:41 +02:00
Matthias
6d7096dc66 Use both old and new fixtures for test 2021-05-02 20:42:01 +02:00
Matthias
fc110ea418 Support csv export for new and old versions 2021-05-02 20:41:45 +02:00
Matthias
ef9dd0676c Rename hyperoptresult fixture to avoid naming collision 2021-05-02 20:06:47 +02:00
Matthias
d069ad43d8 Small reformatting in hyperopt 2021-05-02 11:01:26 +02:00
Matthias
9049d6b779 Reformat hyper to cache parameters 2021-05-02 10:45:21 +02:00
Matthias
46f0f66039 Keep dimensions stored in hyperopt class
There is no point in regenerating them and it will cause some
overhead as all space classes will be recreated for every epoch.
2021-05-02 09:48:37 +02:00
Matthias
ced5cc7ce2 Don't recalculate min/max date - they won't change between epochs 2021-05-02 09:46:27 +02:00
Matthias
97478abb9d Move format explanation string to HyperoptTools 2021-05-02 09:46:27 +02:00
Matthias
4c00d4496d Update tests to reflect new backtest returns 2021-05-02 09:46:27 +02:00
Matthias
f2e182002d Simplify calling backtesting by returning the proper result 2021-05-02 09:46:27 +02:00
Matthias
e2e1d34828 Extract stake_currency param from hyperopt-explanationstring 2021-05-02 09:46:27 +02:00
Matthias
852f125347 Fix tests 2021-05-02 09:46:27 +02:00
Matthias
545cba7fd8 Refactor optimize_report
we should not calculate non-daily statistics in the daily stats method
2021-05-02 09:46:27 +02:00
Matthias
b125c975c7 Rename strategy_comparison method 2021-05-02 09:46:27 +02:00
Matthias
c45204a2c4 Fix failing mocks 2021-05-02 08:59:21 +02:00
Matthias
30da307d13 Remove encode/decode for hyperopt 2021-05-01 17:01:52 +02:00
Matthias
555262b6e1 Only calculate additional indicators if the space is selected 2021-05-01 16:40:29 +02:00
Matthias
e381df9098 extract has_space to Hyperopt-Tools 2021-05-01 16:36:35 +02:00
Matthias
a3d2e68312
Merge pull request #4750 from rokups/rk/custom_sell
Add IStrategy.custom_sell method which allows per-trade sell signal evaluation
2021-04-29 06:50:56 +02:00
Matthias
aab020c9a2
Merge pull request #4818 from freqtrade/cleanup_models
Move static Trade functions to right class
2021-04-28 21:18:55 +02:00
Matthias
63c28b6519 Remove obsolete get_balance method 2021-04-28 16:00:12 +02:00
Matthias
6eb947ae09 Move static Trade functions to right class 2021-04-28 06:37:40 +02:00
Matthias
cc916ab2e9 Add test for custom_sell 2021-04-26 20:26:14 +02:00
Matthias
6f0a585bd0 Fix random test failure due to ttl 0 issue 2021-04-26 11:53:44 +02:00
Matthias
bb7ef2f804 Cache pairlist in pairlist, not globally
closes #4797 closes #4689
2021-04-25 20:10:47 +02:00
Matthias
fd3afdc230 plot-profit should use absolute values 2021-04-25 10:10:09 +02:00
Rokas Kupstys
595b8735f8 Add dataframe parameter to custom_stoploss() and custom_sell() methods. 2021-04-25 09:48:40 +03:00
Rokas Kupstys
961b38636f Remove explicit sell_flag parameter from SellCheckTuple. 2021-04-25 09:48:40 +03:00
Rokas Kupstys
bfad4e82ad Make execute_sell() use SellCheckTuple for sell reason. 2021-04-25 09:48:40 +03:00
Matthias
4636b3970b Fix failed test due to exchange downtime 2021-04-25 08:25:12 +02:00
Matthias
f12e002686
Merge pull request #4775 from freqtrade/fix_wallet_unlimited
Fix wallet unlimited
2021-04-24 15:54:06 +02:00
Matthias
5c7f278c8a add tests for IntParameter.range 2021-04-24 07:18:35 +02:00
Matthias
4005708f85 Handle edge with volumepairlist and empty pair_whitelist
closes #4779
2021-04-23 06:50:39 +02:00
Matthias
4693cba10d
Merge pull request #4769 from freqtrade/trades_pagination
Trades pagination
2021-04-22 19:13:19 +02:00
Matthias
7e2e196643 improve sell_message by using sell rate 2021-04-22 17:13:22 +02:00
Matthias
92a2e254af Fix backtesting test 2021-04-21 20:17:30 +02:00
Matthias
d8c8a8d8c2 Remvoe pointless arguments from get_trade_stake_amount 2021-04-21 20:01:10 +02:00
Matthias
9f6f3e0862 Address ZeroDivisionExceptiond
closes #4764 closes #4617
2021-04-20 21:41:49 +02:00
Matthias
05ce3acc46 Improve tests for api_trades 2021-04-20 21:29:16 +02:00
Matthias
bd92ce938c trade_history should paginate through results
this avoids huge results
2021-04-20 21:04:44 +02:00
Matthias
f821ef5aec Final finetunings of rpc_fill messages 2021-04-20 19:36:30 +02:00
Matthias
efbe0843be Add documentation for fill messages 2021-04-20 19:23:29 +02:00
Matthias
0341ac5a55 rename RPC message types 2021-04-20 19:23:28 +02:00
Matthias
8800a09770 Don't send double-notifications for stoploss fills 2021-04-20 19:22:14 +02:00
Matthias
fecd5c582b Add buy and sell fill notifications
closes #3542
2021-04-20 19:22:14 +02:00
Matthias
71b017e7c3 Simplify webhook test 2021-04-20 19:22:14 +02:00
Matthias
1936dd1ee8 Add test-case verifying "changing" wallet
with unlimited amount
2021-04-20 15:45:07 +02:00
Matthias
2254f65fa7 use binance intests instead of bittrex 2021-04-20 12:59:15 +02:00
Matthias
bd7e535e42 Use "human" amounts in stake_amount tests 2021-04-20 11:58:47 +02:00
Matthias
c9e901cf32 Move wallet tasks to test_wallets 2021-04-20 11:31:37 +02:00
Matthias
44bfb53668 Don't use current rate for closed trades 2021-04-17 19:29:34 +02:00
Matthias
c8d3d449a3 Add quick test for pair_whitelist overwrite 2021-04-17 10:51:02 +02:00
Matthias
c52edcff4d
Merge pull request #4677 from mads03dk/get_trade
Add API endpoint for getting a specific trade
2021-04-16 19:57:58 +02:00
Matthias
9f2b6ee9a5
Merge pull request #4740 from freqtrade/decimal_stoploss_Hyperopt
stoploss and roi skdecimal spaces hyperopt
2021-04-16 19:46:07 +02:00
Matthias
aeb81f90ff Implement errorhandling for /trade endpoint 2021-04-16 19:35:56 +02:00
Gonzalo Matheu
e3c5a4b3fc telegram: Formatting imports 2021-04-15 21:51:16 -03:00
Gonzalo Matheu
5fae4ea2fd telegram: Formatting code 2021-04-15 21:51:16 -03:00
Gonzalo Matheu
50bdae8eb2 telegram: Adding forcebuy inline keyboard 2021-04-15 21:51:16 -03:00
grillzoo
5e51ba6258 fix flake8 2021-04-15 21:38:00 +01:00
Théo Martin
ce23d9dfee
Fix test min stake amount 2021-04-15 01:38:08 +01:00
Théo Martin
885096f2b3
Update tests for get_min_pair_stake_amount 2021-04-15 01:22:52 +01:00
Matthias
e820814809 Default-stoploss-hyperopt should use decimal space, nto real 2021-04-14 20:32:34 +02:00
Matthias
ba38e398e4 Add type hint 2021-04-13 22:17:42 +02:00
Matthias
c316531c49 make tests 3.7 compatible 2021-04-13 22:07:01 +02:00
Matthias
c2f35ce416 /balance should use cached tickers when possible 2021-04-13 20:21:03 +02:00
Matthias
e4bb6b1582 Add kucoin exchange subclass
Kucoin has some specific orderbook restrictions

closes #4723
2021-04-13 12:28:07 +02:00
Matthias
59cfbbee17
Merge pull request #4724 from csteeg/develop
Fixes FTX stoploss on echange throwing an error
2021-04-13 08:41:52 +02:00
Matthias
99e7ee1273 Fix ftx stoploss creation test 2021-04-13 08:26:41 +02:00
Matthias
f1cf56cc42 Update current_whitelist test 2021-04-13 06:57:21 +02:00
Matthias
9a58a85347 Don't export "hum" date versions for trade objects.
They are not used and have a rather high performance penalty due to
using arrow.get
2021-04-13 06:17:11 +02:00
Matthias
cb60db01b1
Merge pull request #4703 from freqtrade/decimal_space
Add SKDecimal Space
2021-04-12 19:18:10 +02:00
Matthias
aaf9872ef3 Simplify webserver test 2021-04-10 19:53:00 +02:00
Matthias
be0dc737dc
Merge pull request #4706 from freqtrade/simplify_fiat_convert
Simplify fiat convert and fix USD coingecko problem
2021-04-10 14:57:34 +02:00
Matthias
4820b4b314 Fix test failure 2021-04-10 14:52:34 +02:00
Matthias
579e68f31e Reduce log verbosity when buying 2021-04-10 14:40:44 +02:00
Matthias
14e8574235 fetch_balance is never called in dry-run 2021-04-10 14:17:43 +02:00
Matthias
37c2e037f1 Rename dry_run_order to create_dry_run_order 2021-04-10 13:50:56 +02:00
Matthias
ebbe47f38d Simplify fiat convert and fix USD coingecko problem 2021-04-10 13:36:16 +02:00
Matthias
4996bd443e
Merge pull request #4697 from freqtrade/docker_user
Docker as user
2021-04-10 08:19:25 +02:00
Matthias
34e47db18d Test SKDecimal space 2021-04-09 22:15:24 +02:00
Matthias
fedff1a75a Fix failing test 2021-04-09 22:10:20 +02:00
Matthias
898c24949b Add chown method to support docker 2021-04-08 20:17:07 +02:00
Matthias
8cd3c05c39
Merge pull request #4686 from gerrito333/develop
Add Pairlist Handler for Volatility
2021-04-08 20:00:41 +02:00
Matthias
4d30c32ad2 Improve resiliancy of a test 2021-04-07 17:10:20 +02:00
Matthias
c36051be56
Merge pull request #4685 from freqtrade/ft_has
Use ccxt's has to check which exchanges can work with freqtrade
2021-04-07 10:47:56 +02:00
gbojen
17508efbbc resolves freqtrade/freqtrade#4650 2021-04-07 08:59:44 +02:00
gbojen
9772a93634 resolves freqtrade/freqtrade#4650 2021-04-06 23:11:40 +02:00
gbojen
187cf6dcd5 VolatilityFilter resolves freqtrade/freqtrade#4650 2021-04-06 22:41:15 +02:00
Matthias
a3b4667f7c Update exchange validation to use "validate_exchange". 2021-04-06 20:16:29 +02:00
Matthias
c40b811f19 flush after creating mock trades 2021-04-06 19:35:28 +02:00
Matthias
56ef3af424 Allow comments in pairs files 2021-04-06 13:29:22 +02:00
Matthias
ddabfe0206 adjust tests to match new exchangelist output 2021-04-06 07:58:45 +02:00
Matthias
431f0a3db4
Merge pull request #4671 from freqtrade/fix/sqlalchemy
sqlalchemy database locked bug
2021-04-05 14:09:35 +02:00
Matthias
dc406fe19f Fail in case of name and explicit space name collisions 2021-04-05 10:53:00 +02:00
Matthias
7132aefd60 Rename Trade.session to Trade._session 2021-04-05 08:46:12 +02:00
Matthias
ea0b47a7f9 Replace test occurances of Trade.session with Trade.query.session 2021-04-05 07:38:07 +02:00
Matthias
41cb2a6451 Merge branch 'develop' into pr/rokups/4596 2021-04-03 17:00:37 +02:00
Matthias
6555454bd2 Remove more ticker_interval occurances 2021-04-03 16:54:47 +02:00
Rokas Kupstys
ea43d5ba85 Implement DecimalParameter and rename FloatParameter to RealParameter. 2021-04-02 17:08:16 +03:00
Mads Sørensen
ede26091b9 Add validation in the right places... 2021-04-02 14:35:19 +02:00
Mads Sørensen
2c0079b00b Add profit_fiat to tests, use ANY, as price changes... 2021-04-02 13:16:52 +02:00
Matthias
d64295ba24 Adapt test strategy to new parameters 2021-04-01 06:55:25 +02:00
Matthias
2869d5368d Allow edge to use dynamic pairlists
closes #4298
2021-03-30 20:20:24 +02:00
Matthias
50fcb3f330 Reduce verbosity of missing data if less than 1% of data is missing 2021-03-30 07:26:39 +02:00
Matthias
89bbfd2324 Remove candle_count from dataframe before backtesting
closes #3754
2021-03-29 20:26:54 +02:00
Matthias
6954a1e029 MOre tests for ParameterHyperopt 2021-03-29 19:49:22 +02:00
Matthias
f6211bc00e new-config should include API config 2021-03-28 20:23:57 +02:00
Matthias
929f329607 more tests 2021-03-28 19:49:20 +02:00
Matthias
20f7e9b4b7 Make BaseParameter get_space abstract 2021-03-28 19:31:54 +02:00
Matthias
4fd7bedcb2 Sort imports ... 2021-03-27 11:32:51 +01:00
Matthias
71e2134694 Add some simple tests for hyperoptParameters 2021-03-27 11:26:26 +01:00
Matthias
7adfa0cfd9
Merge pull request #4592 from freqtrade/dependabot/pip/develop/sqlalchemy-1.4.2
Bump sqlalchemy from 1.3.23 to 1.4.2
2021-03-22 20:00:13 +01:00
Matthias
b7702a1e9f Improve tests to work with new sqlalchemy version 2021-03-22 19:39:06 +01:00
Matthias
e39cff522d Remove duplicate dict keys in test 2021-03-22 17:30:16 +01:00
Matthias
43d7f9ac67 Add bid_last_balance parameter
to interpolate sell prices

closes #3270
2021-03-20 14:38:26 +01:00
Matthias
f4e71c1f14 get_buy_rate tests should be sensible 2021-03-20 14:02:13 +01:00
Matthias
73876b61b4 Show potential errors when loading markets 2021-03-20 13:34:33 +01:00
Matthias
16a54b3616 Don't require non-mandatory arguments 2021-03-20 13:08:02 +01:00
Matthias
fe7f3d9c37 Add price side validation for market orders 2021-03-20 11:48:39 +01:00
Matthias
7ffe1fd36a Fix calculation error for min-trade-stake 2021-03-20 07:21:22 +01:00
Matthias
0d5833ed91 Use OperationalException for TimeRange errors 2021-03-19 06:40:04 +01:00
Patrick Brunier
4d52732d30 Added a small snippet to give users a descent error message,
when their start date is afer the stop date.
Also updated the tests.
2021-03-18 22:38:54 +01:00
Matthias
84ca9bd2c7
Merge pull request #4543 from brookmiles/fix-math-custom-stoploss-docs
correct math used in examples and clarify some terminology regarding …
2021-03-18 19:32:30 +01:00
Matthias
76ca3c219f extract result-printing from hyperopt class 2021-03-17 20:45:15 +01:00