python-trezor

Python library and commandline client for communicating with TREZORHardware Wallet

See https://trezor.io for more information

Install

Python-trezor requires Python 3.5 or higher, and libusb 1.0. The easiestway to install it is with pip. The rest of this guide assumes you havea working pip; if not, you can refer to thisguide.

Quick installation

On a typical Linux / Mac / BSD system, you already have all you need.Install trezor with:

pip3 install --upgrade setuptools
pip3 install trezor

On Windows, you also need to installlibusb and theappropriate drivers. This is, unfortunately, atopic bigger than this README.

Older Trezor One support

If your Trezor One is on firmware 1.6.3 or older, you will need HIDAPI supportfor it to be recognized. That requires additional packages.

Debian / Ubuntu

On a Debian or Ubuntu based system, you can install these:

sudo apt-get install python3-dev python3-pip cython3 libusb-1.0-0-dev libudev-dev

Windows

On a Windows based system, you can install these (for more info on choco, refer to this):

choco install vcbuildtools python3 protoc
refreshenv
pip3 install protobuf

When installing the trezor library, you need to specify that you wanthidapi:

pip3 install --upgrade setuptools
pip3 install trezor[hidapi]

Ethereum support

Ethereum requires additional python packages. Instead ofpip3 install trezor, specify pip3 install trezor[ethereum].

You can combine it with the above, to get both HIDAPI and Ethereumsupport:

pip3 install trezor[ethereum,hidapi]

FreeBSD

On FreeBSD you can install the packages:

pkg install security/py-trezor

or build via ports:

cd /usr/ports/security/py-trezor
make install clean

Building from source

Sometimes you might need to install the latest-and-greatest unreleased versionstraight from GitHub. You will need some prerequisites first:

sudo apt-get install protobuf-compiler protobuf-dev
pip3 install protobuf

If you just need to install the package, you can use pip again:

pip3 install git+https://github.com/trezor/python-trezor

If you want to work on the sources, make a local clone:

git clone https://github.com/trezor/python-trezor
cd python-trezor
python3 setup.py prebuild
python3 setup.py develop

Command line client (trezorctl)

The included trezorctl python script can perform various tasks such aschanging setting in the Trezor, signing transactions, retrieving accountinfo and addresses. See the docs/ sub folder for detailedexamples and options.

NOTE: An older version of the trezorctl command is available forDebian Stretch(and comes pre-installed on Tails OS).

Python Library

You can use this python library to interact with a Bitcoin Trezor anduse its capabilities in your application. See examples here in thetools/ sub folder.

PIN Entering

When you are asked for PIN, you have to enter scrambled PIN. Follow thenumbers shown on TREZOR display and enter the their positions using thenumeric keyboard mapping:

Example: your PIN is 1234 and TREZOR is displaying the following:

You have to enter: 3795

Contributing

Python-trezor pulls coins info and protobuf messages fromtrezor-common repository. Ifyou are developing new features for Trezor, you will want to startthere. Once your changes are accepted to trezor-common, you can make aPR against this repository. Don't forget to update the submodule with:

git submodule update --init --remote

Then, rebuild the protobuf messages and get coins.json by running:

python3 setup.py prebuild

To get support for BTC-like coins, these steps are enough and no furtherchanges to the library are necessary.