Trezor T support

[curiosity81]

Hi,

I got electrum-nmc working on an ubuntu 16.04 system. Then I tried the hardware support of electrum-nmc. I am not very experienced with the Trezor T hardware yet, but the device works well via the web interface of the manufacturer. With electrum-nmc I get the following error message:

Traceback (most recent call last):
  File "/home/<user>/.local/lib/python3.5/site-packages/electrum_nmc/plugins.py", line 151, in get_hardware_support
    p = self.get_plugin(name)
  File "/home/<user>/.local/lib/python3.5/site-packages/electrum_nmc/plugins.py", line 179, in get_plugin
    self.load_plugin(name)
  File "/home/<user>/.local/lib/python3.5/site-packages/electrum_nmc/plugins.py", line 104, in load_plugin
    plugin = p.Plugin(self, self.config, name)
  File "/home/<user>/.local/lib/python3.5/site-packages/electrum_nmc_plugins/trezor/trezor.py", line 120, in __init__
    import trezorlib.ckd_public
  File "/home/<user>/.local/lib/python3.5/site-packages/trezorlib/ckd_public.py", line 5, in <module>
    from .tests.support.ckd_public import *  # noqa
ImportError: No module named 'trezorlib.tests.support'

Where can I find this module (trezorlib.tests.support) or do I have to install some additional package? I also installed

https://github.com/trezor/python-trezor

But this did not help.

Any suggestions?

BTW: I do not understand the following message at the beginning of the issues text box:

Do not post issues about non-bitcoin versions of Electrum.

This makes no sense since this is the namecoin fork of electrum. Right?

[curiosity81]

Same error with electrum-ltc :-(

[curiosity81]

Ok. I figured the error out.

Zeroly, python is a pain in the ass. I only wanted to say that :-P

Firstly, the Trezor T is not working at all, not for electrum, electrum-ltc and electrum-nmc.

Secondly, if one follows the README.md at

https://github.com/trezor/python-trezor

for the Trezor T with

pip3 install --upgrade setuptools
pip3 install trezor

then the directory

/home/<user>/.local/lib/python3.5/site-packages/trezorlib/tests/support

is missing. However, this directory exists in the current github snapshot.

What I did was to install python-trezor as recommended in the corresponding README.md file. Thus, the directory structure in .local/lib/python3.5/site-packages/trezorlib is created. Then I cloned the current python-trezor project. Therein exists an folder trezorlib. I renamed the already existing trezorlib directory in .local/lib/python3.5/site-packages to trezorlib.old and copied the trezorlib directory from the git clone to this location. I also copied the file trezorlib.old/coins.json to the new trezorlib. This is necessary, otherwise the electrums will complain. Then follow the normal electrum procedure for creating a wallet with hardware wallet support. Make sure that you have connected the Trezor T to your computer and that the device is unlocked. The device should be detected by the system no matter which electrum is used.

I have not tested yet if the rest of electrum is working properly.

[matejcik]

FWIW this is fixed in electrum commit spesmilo@208606b

you can cherry-pick that commit into your repository; it's isolated to the Trezor plugin

i'll also do a point release to fix the packaging issue

[JeremyRand]

BTW: I do not understand the following message at the beginning of the issues text box:

Do not post issues about non-bitcoin versions of Electrum.

This makes no sense since this is the namecoin fork of electrum. Right?

@curiosity81 You've run into #4 .

FWIW this is fixed in electrum commit spesmilo/electrum@208606b

you can cherry-pick that commit into your repository; it's isolated to the Trezor plugin

i'll also do a point release to fix the packaging issue

@matejcik Thanks for the upstream fix, I'll merge that along with the next merge from upstream.

[JeremyRand]

The relevant upstream fix is now merged.