hive-nectar 0.2.16

Hive Blockchain Python Library

nectar - Python Library for HIVE

nectar is a python library for HIVE, which is created from the remains of beem which was derived from python-bitshares The library name is derived from a nectar of a flower.

nectar includes python-graphenelib.

Current build status

Support & Documentation

You may find help in the nectar-discord. The discord channel can also be used to discuss things about nectar.

A complete library documentation is available at ReadTheDocs

RPC surface

• Single appbase JSON-RPC path: all calls use the api.method shape with defaults from the static src/nectarapi/openapi.py map (no condenser/appbase flag or bundled JSON specs).
• Transport: pooled httpx client with retry/backoff handled by the RPC layer and shared across the module-level shared_blockchain_instance() helper.
• Shared instance: constructing Hive(...) will reuse the shared transport once initialized; set_shared_blockchain_instance/shared_blockchain_instance expose a singleton when you want one process-wide instance.

About hive-nectar

• Highly opinionated fork of beem
• High unit test coverage
• Complete documentation of hive-nectar and all classes including all functions
• hivesigner integration
• Works on read-only systems
• Own BlockchainObject class with cache
• Contains all broadcast operations
• Estimation of virtual account operation index from date or block number
• the command line tool hive-nectar uses click and has more commands
• NodeRPC can be used to execute even not implemented RPC-Calls
• More complete implemention

Installation

The minimal working Python version is >=3.10

nectar can be installed parallel to beem.

For Debian and Ubuntu, please ensure that the following packages are installed:

sudo apt-get install build-essential libssl-dev python3-dev python3-pip python3-setuptools

The following package speeds up hive-nectar:

sudo apt-get install python3-gmpy2

For Fedora and RHEL-derivatives, please ensure that the following packages are installed:

sudo yum install gcc openssl-devel python-devel

For OSX, please do the following:

brew install openssl
export CFLAGS="-I$(brew --prefix openssl)/include $CFLAGS"
export LDFLAGS="-L$(brew --prefix openssl)/lib $LDFLAGS"

For Termux on Android, please install the following packages:

pkg install clang openssl python

Signing and Verify can be fasten (200 %) by installing cryptography (you may need to replace pip3 by pip):

pip3 install -U cryptography

or (you may need to replace pip3 by pip):

pip3 install -U secp256k1prp

Install or update nectar by pip(you may need to replace pip3 by pip):

pip3 install -U hive-nectar

You can install nectar from this repository if you want the latest but possibly non-compiling version:

git clone https://github.com/thecrazygm/hive-nectar.git
cd hive-nectar
uv sync
uv sync --dev

Run tests after install:

pytest

Ledger support

For Ledger (Nano S) signing, the following package must be installed:

pip3 install ledgerblue

Changelog

Can be found in CHANGELOG.md.

License

This library is licensed under the MIT License.

Acknowledgements

beem was created by Holger Nahrstaedt python-bitshares and python-graphenelib were created by Fabian Schuh (xeroc).