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Python library for communicating with TREZOR Bitcoin Hardware Wallet

Project description


.. image::

.. image::

Client side implementation for TREZOR-compatible Bitcoin hardware wallets.

See for more information.


(Run with sudo if not running in superuser mode under Linux)

.. code::

pip install trezor

On Linux you might need to run these commands first:

.. code::
sudo apt-get install python-dev cython libusb-1.0-0-dev libudev-dev git
sudo pip install setuptools


also found in ``tools/``

.. code:: python

#!/usr/bin/env python

from trezorlib.client import TrezorClient
from trezorlib.transport_hid import HidTransport

def main():
# List all connected TREZORs on USB
devices = HidTransport.enumerate()

# Check whether we found any
if len(devices) == 0:
print('No TREZOR found')

# Use first connected device
transport = HidTransport(devices[0])

# Creates object for manipulating TREZOR
client = TrezorClient(transport)

# Print out TREZOR's features and settings

# Get the first address of first BIP44 account
# (should be the same address as shown in
bip32_path = client.expand_path("44'/0'/0'/0/0")
address = client.get_address('Bitcoin', bip32_path)
print('Bitcoin address:', address)


if __name__ == '__main__':

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**

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