jsonrpc does not work (MethodNotFound: Method not found)

- tried oldest available tag and latest: https://hub.docker.com/r/xmrto/monero/tags?page=2&ordering=last_updated same problem, 

- tried pip3 installable module and git sources same problem 

```
❯ docker run --rm --net host --rm -e DAEMON_HOST=0.0.0.0 -v /home/toor/monero:/monero xmrto/monero --data-dir /monero
2020-12-29 20:04:48.920 I Monero 'Oxygen Orion' (v0.17.0.0-e5decd0cd)
2020-12-29 20:04:48.920 I Initializing cryptonote protocol...
2020-12-29 20:04:48.920 I Cryptonote protocol initialized OK
2020-12-29 20:04:48.921 I Initializing core...
2020-12-29 20:04:48.921 I Loading blockchain from folder /monero/lmdb ...
2020-12-29 20:04:48.953 I Loading checkpoints
2020-12-29 20:04:48.953 I Core initialized OK
2020-12-29 20:04:48.953 I Initializing p2p server...
2020-12-29 20:04:48.956 I p2p server initialized OK
2020-12-29 20:04:48.956 I Initializing core RPC server...
2020-12-29 20:04:48.956 I Binding on 0.0.0.0 (IPv4):28081
2020-12-29 20:04:49.431 I core RPC server initialized OK on port: 28081
2020-12-29 20:04:49.431 I Starting core RPC server...
2020-12-29 20:04:49.431 I core RPC server started ok
2020-12-29 20:04:49.431 I Starting p2p net loop...
2020-12-29 20:04:50.432 I 
2020-12-29 20:04:50.432 I **********************************************************************
2020-12-29 20:04:50.432 I The daemon will start synchronizing with the network. This may take a long time to complete.
2020-12-29 20:04:50.432 I 
2020-12-29 20:04:50.432 I You can set the level of process detailization through "set_log <level|categories>" command,
2020-12-29 20:04:50.432 I where <level> is between 0 (no details) and 4 (very verbose), or custom category based levels (eg, *:WARNING).
2020-12-29 20:04:50.432 I 
2020-12-29 20:04:50.432 I Use the "help" command to see the list of available commands.
2020-12-29 20:04:50.432 I Use "help <command>" to see a command's documentation.
2020-12-29 20:04:50.432 I **********************************************************************
2020-12-29 20:04:51.450 I [39.105.109.243:18080 OUT] Sync data returned a new top block candidate: 284196 -> 2263011 [Your node is 1978815 blocks (6.1 years) behind] 
2020-12-29 20:04:51.451 I SYNCHRONIZATION started
```

```
In [2]:                                                                                                                                       
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❯ ipython3
Python 3.6.12 (default, Dec 02 2020, 09:44:23) [GCC]
Type 'copyright', 'credits' or 'license' for more information
IPython 7.13.0 -- An enhanced Interactive Python. Type '?' for help.

In [1]: from monero.wallet import Wallet 
   ...: from monero.backends.jsonrpc import JSONRPCWallet                                                                                     

In [2]: w = Wallet(JSONRPCWallet(port=28081))                                                                                                 
JSON RPC error:
{
  "error": {
    "code": -32601,
    "message": "Method not found"
  },
  "id": 0,
  "jsonrpc": "2.0"
}
---------------------------------------------------------------------------
MethodNotFound                            Traceback (most recent call last)
<ipython-input-2-c0dbfab904dd> in <module>
----> 1 w = Wallet(JSONRPCWallet(port=28081))

~/.local/lib/python3.6/site-packages/monero/wallet.py in __init__(self, backend)
     34         self.incoming = PaymentManager(0, backend, 'in')
     35         self.outgoing = PaymentManager(0, backend, 'out')
---> 36         self.refresh()
     37 
     38     def refresh(self):

~/.local/lib/python3.6/site-packages/monero/wallet.py in refresh(self)
     45         self.accounts = self.accounts or []
     46         idx = 0
---> 47         for _acc in self._backend.accounts():
     48             _acc.wallet = self
     49             try:

~/.local/lib/python3.6/site-packages/monero/backends/jsonrpc.py in accounts(self)
    255     def accounts(self):
    256         accounts = []
--> 257         _accounts = self.raw_request('get_accounts')
    258         idx = 0
    259         self._master_address = Address(_accounts['subaddress_accounts'][0]['base_address'])

~/.local/lib/python3.6/site-packages/monero/backends/jsonrpc.py in raw_request(self, method, params, squelch_error_logging)
    505                 _log.error(u"JSON RPC error:\n{result}".format(result=_ppresult))
    506             if err['code'] in _err2exc:
--> 507                 raise _err2exc[err['code']](err['message'])
    508             else:
    509                 raise RPCError(

MethodNotFound: Method not found

In [3]:                  
```