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 in your native environment (not a Docker image) to avoid hidapi issues.

python3 -m venv ledger
source ledger/bin/activate
pip install ledgerblue

At the moment these tools work for all Nano S, Nano S+, and Blue devices, but only for special Nano X developer units which are not available to the general public. The Recover scripts, will work with Nano X starting from a specific version.

Please check Ledger Developer Portal to see how to debug your application on a Nano X simulator using Speculos

• libudev-dev
• libusb-1.0-0-dev
• python-dev (python >= 3.6)

This package can optionally work with libsecp256k1 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.

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>"

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