22b8c4e397
regression from cea4238b81
```
975.04 | E | plugin.DeviceMgr | failed to create client for digitalbitbox at <REDACTED>: AttributeError("'NoneType' object has no attribute 'get_passphrase'")
Traceback (most recent call last):
File "...\electrum\electrum\plugin.py", line 620, in list_pairable_device_infos
soft_device_id = client.get_soft_device_id()
File "...\electrum\electrum\plugins\hw_wallet\plugin.py", line 251, in get_soft_device_id
root_fp = self.request_root_fingerprint_from_device()
File "...\electrum\electrum\plugin.py", line 362, in wrapper
return run_in_hwd_thread(partial(func, *args, **kwargs))
File "...\electrum\electrum\plugin.py", line 352, in run_in_hwd_thread
return func()
File "...\electrum\electrum\plugins\hw_wallet\plugin.py", line 264, in request_root_fingerprint_from_device
child_of_root_xpub = self.get_xpub("m/0'", xtype='standard')
File "...\electrum\electrum\plugins\digitalbitbox\digitalbitbox.py", line 115, in get_xpub
reply = self._get_xpub(bip32_path)
File "...\electrum\electrum\plugins\digitalbitbox\digitalbitbox.py", line 110, in _get_xpub
if self.check_device_dialog():
File "...\electrum\electrum\plugins\digitalbitbox\digitalbitbox.py", line 197, in check_device_dialog
if not self.password_dialog(msg):
File "...\electrum\electrum\plugins\digitalbitbox\digitalbitbox.py", line 159, in password_dialog
password = self.handler.get_passphrase(msg, False)
AttributeError: 'NoneType' object has no attribute 'get_passphrase'
```
Plugin rules: * The plugin system of Electrum is designed to allow the development of new features without increasing the core code of Electrum. * Electrum is written in pure python. if you want to add a feature that requires non-python libraries, then it must be submitted as a plugin. If the feature you want to add requires communication with a remote server (not an Electrum server), then it should be a plugin as well. If the feature you want to add introduces new dependencies in the code, then it should probably be a plugin. * We expect plugin developers to maintain their plugin code. However, once a plugin is merged in Electrum, we will have to maintain it too, because changes in the Electrum code often require updates in the plugin code. Therefore, plugins have to be easy to maintain. If we believe that a plugin will create too much maintenance work in the future, it will be rejected. * Plugins should be compatible with Electrum's conventions. If your plugin does not fit with Electrum's architecture, or if we believe that it will create too much maintenance work, it will not be accepted. In particular, do not duplicate existing Electrum code in your plugin. * We may decide to remove a plugin after it has been merged in Electrum. For this reason, a plugin must be easily removable, without putting at risk the user's bitcoins. If we feel that a plugin cannot be removed without threatening users who rely on it, we will not merge it.