ledgerblue 0.1.40

Python library to communicate with Ledger Blue/Nano S

# Python tools for Ledger Blue, Nano S and Nano X

This package contains Python tools to communicate with Ledger Blue, Nano S and Nano X and manage applications life cycle.

It is recommended to install this package in a [Virtual Environment](http://docs.python-guide.org/en/latest/dev/virtualenvs/) in your native environment (not a Docker image) to avoid hidapi issues.

` virtualenv ledger source ledger/bin/activate pip install ledgerblue `

## Supported devices

At the moment these tools work for all Nano S and Blue devices, but only for special Nano X developer units which are not available to the general public.

Please check [Ledger Developer Portal](https://developers.ledger.com/docs/nano-app/introduction/) to see how to debug your application on a Nano X simulator using [Speculos](https://github.com/LedgerHQ/speculos)

## Installation pre-requisites

• libudev-dev

• libusb-1.0-0-dev

• python-dev (python 2.7)

• virtualenv

This package can optionally work with [libsecp256k1](https://github.com/ludbb/secp256k1-py) Python bindings compiled with ECDH support. If you wish to enable libsecp256k1 bindings, make sure to install libsecp256k1 as follows:

` SECP_BUNDLED_EXPERIMENTAL=1 pip --no-cache-dir install --no-binary secp256k1 secp256k1 `

To install the custom secp256k1 package on MacOS, you previously need to run: ` brew install libtool ` Which would end up installing glibtool and glibtoolize utilities required for the build process.

## Giving permissions on udev

When running on Linux, make sure the following rules have been added to /etc/udev/rules.d/:

` SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0000", MODE="0660", TAG+="uaccess", TAG+="udev-acl" OWNER="<UNIX username>" SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0001", MODE="0660", TAG+="uaccess", TAG+="udev-acl" OWNER="<UNIX username>" SUBSYSTEMS=="usb", ATTRS{idVendor}=="2c97", ATTRS{idProduct}=="0004", MODE="0660", TAG+="uaccess", TAG+="udev-acl" OWNER="<UNIX username>" `

## Target ID

Use the following Target IDs (–targetId option) when running commands directly:

• 0x31100002 on Nano S with firmware <= 1.3.1

• 0x31100003 on Nano S with firmware 1.4.x

• 0x31100004 on Nano S with firmware 1.5.x

• 0x31000002 on Blue with firmware <= 2.0

• 0x31000004 on Blue with firmware 2.1.x

• 0x31010004 on Blue v2 with firmware 2.1.x

• 0x33000004 on Nano X with firmware 1.x (developer units only)