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173 lines
4.5 KiB
173 lines
4.5 KiB
# python-trezor
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[](https://travis-ci.org/trezor/python-trezor) [](https://repology.org/metapackage/python:trezor) [](https://gitter.im/trezor/community)
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Python library and commandline client for communicating with Trezor
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Hardware Wallet
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See <https://trezor.io> for more information
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## Install
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Python-trezor requires Python 3.5 or higher, and libusb 1.0. The easiest
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way to install it is with `pip`. The rest of this guide assumes you have
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a working `pip`; if not, you can refer to [this
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guide](https://packaging.python.org/tutorials/installing-packages/).
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### Quick installation
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On a typical Linux / Mac / BSD system, you already have all you need.
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Install `trezor` with:
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```sh
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pip3 install --upgrade setuptools
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pip3 install trezor
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```
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On Windows, you also need to install
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[libusb](https://github.com/libusb/libusb/wiki/Windows) and the
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appropriate [drivers](https://zadig.akeo.ie/). This is, unfortunately, a
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topic bigger than this README.
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### Older Trezor One support
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If your Trezor One is on firmware **1.6.3** or older, you will need HIDAPI support
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for it to be recognized. That requires additional packages.
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#### Debian / Ubuntu
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On a Debian or Ubuntu based system, you can install these:
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```sh
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sudo apt-get install python3-dev python3-pip cython3 libusb-1.0-0-dev libudev-dev
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```
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#### Windows
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On a Windows based system, you can install these (for more info on choco, refer to [this](https://chocolatey.org/install)):
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```sh
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choco install vcbuildtools python3 protoc
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refreshenv
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pip3 install protobuf
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```
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When installing the trezor library, you need to specify that you want
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`hidapi`:
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```sh
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pip3 install --upgrade setuptools
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pip3 install trezor[hidapi]
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```
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### Ethereum support
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Ethereum requires additional python packages. Instead of
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`pip3 install trezor`, specify `pip3 install trezor[ethereum]`.
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You can combine it with the above, to get both HIDAPI and Ethereum
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support:
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```sh
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pip3 install trezor[ethereum,hidapi]
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```
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### FreeBSD
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On FreeBSD you can install the packages:
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```sh
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pkg install security/py-trezor
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```
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or build via ports:
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```sh
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cd /usr/ports/security/py-trezor
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make install clean
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```
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### Building from source
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Sometimes you might need to install the latest-and-greatest unreleased version
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straight from GitHub. You will need some prerequisites first:
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```sh
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sudo apt-get install protobuf-compiler protobuf-dev
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pip3 install protobuf
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```
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If you just need to install the package, you can use pip again:
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```sh
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pip3 install git+https://github.com/trezor/python-trezor
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```
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If you want to work on the sources, make a local clone:
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```sh
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git clone https://github.com/trezor/python-trezor
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cd python-trezor
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python3 setup.py prebuild
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python3 setup.py develop
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```
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## Command line client (trezorctl)
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The included `trezorctl` python script can perform various tasks such as
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changing setting in the Trezor, signing transactions, retrieving account
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info and addresses. See the [docs/](docs/) sub folder for detailed
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examples and options.
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NOTE: An older version of the `trezorctl` command is [available for
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Debian Stretch](https://packages.debian.org/en/stretch/python-trezor)
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(and comes pre-installed on [Tails OS](https://tails.boum.org/)).
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## Python Library
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You can use this python library to interact with a Bitcoin Trezor and
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use its capabilities in your application. See examples here in the
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[tools/](tools/) sub folder.
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## PIN Entering
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When you are asked for PIN, you have to enter scrambled PIN. Follow the
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numbers shown on Trezor display and enter the their positions using the
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numeric keyboard mapping:
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| 7 | 8 | 9 |
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| 4 | 5 | 6 |
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| 1 | 2 | 3 |
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Example: your PIN is **1234** and Trezor is displaying the following:
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| 2 | 8 | 3 |
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| 5 | 4 | 6 |
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| 7 | 9 | 1 |
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You have to enter: **3795**
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## Contributing
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Python-trezor pulls coins info and protobuf messages from
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[trezor-common](https://github.com/trezor/trezor-common) repository. If
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you are developing new features for Trezor, you will want to start
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there. Once your changes are accepted to `trezor-common`, you can make a
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PR against this repository. Don't forget to update the submodule with:
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```sh
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git submodule update --init --remote
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```
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Then, rebuild the protobuf messages and get `coins.json` by running:
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```sh
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python3 setup.py prebuild
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```
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To get support for BTC-like coins, these steps are enough and no further
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changes to the library are necessary.
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