Skip to content
🐍 Client side implementation for TREZOR-compatible Bitcoin hardware wallets.
Branch: master
Clone or download
Pull request Compare This branch is 169 commits behind trezor:master.
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information.


image repology image

Python library and commandline client for communicating with TREZOR Hardware Wallet

See for more information


Python-trezor requires Python 3.3 or higher, and libusb 1.0. The easiest way to install it is with pip. The rest of this guide assumes you have a working pip; if not, you can refer to this guide.

Trezor T only

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 install libusb and the appropriate drivers. This is, unfortunately, a topic bigger than this README.

Trezor One support

In addition to the above, you need to install development headers for HIDAPI.

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

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

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

Ethereum support

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

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

pip3 install trezor[ethereum,hidapi]


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

Command line client (trezorctl)

The included trezorctl python script can perform various tasks such as changing setting in the Trezor, signing transactions, retrieving account info and addresses. See the docs/ sub folder for detailed examples and options.

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

Python Library

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

PIN Entering

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

7 8 9
4 5 6
1 2 3

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

2 8 3
5 4 6
7 9 1

You have to enter: 3795


Python-trezor pulls coins info and protobuf messages from trezor-common repository. If you are developing new features for Trezor, you will want to start there. Once your changes are accepted to trezor-common, you can make a PR 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 prebuild

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

You can’t perform that action at this time.