Namecoin port of Electrum client.
Pull request Compare This branch is 136 commits ahead, 166 commits behind spesmilo:master.
JeremyRand Merge #60: Set checkpoint on block 385055
bb1f961 Namecoin: Don't generate checkpoints for unexpired names (JeremyRand)
a55959a Namecoin: Make name_show fetch missing chunks if the name is checkpointed (JeremyRand)
4c2a444 Namecoin: Fix checkpoint compatibility with timewarp (JeremyRand)
f7b8919 Namecoin: Set checkpoint for block height 385055 (JeremyRand)

Pull request description:

  Checkpoints in upstream Electrum weren't compatible with Namecoin's timewarp hardfork or the name_show command; we didn't notice this because Electrum-NMC hadn't yet added any checkpoints beyond the genesis block, and the genesis block doesn't have timewarp nor any unexpired names.  This PR fixes both issues and sets checkpoints through block 385055.
Latest commit cf46121 Dec 16, 2018


Electrum-NMC - Lightweight Namecoin client

Licence: GNU GPLv3+ for Electrum-DOGE components; CC BY 4.0 for Namecoin logo, MIT Licence for all other components
Author: The Namecoin developers; based on Electrum by Thomas Voegtlin and Electrum-DOGE by The Electrum-DOGE contributors
Language: Python (>= 3.6)
Homepage: ; original Electrum Homepage at
Build Status Test coverage statistics Help translate Electrum online

Getting started

Electrum-NMC is a pure python application. If you want to use the Qt interface, install the Qt dependencies:

sudo apt-get install python3-pyqt5

If you downloaded the official package (tar.gz), you can run Electrum-NMC from its root directory, without installing it on your system; all the python dependencies are included in the 'packages' directory. To run Electrum-NMC from its root directory, just do:


You can also install Electrum-NMC on your system, by running this command:

sudo apt-get install python3-setuptools
python3 -m pip install .[fast]

This will download and install the Python dependencies used by Electrum-NMC, instead of using the 'packages' directory. The 'fast' extra contains some optional dependencies that we think are often useful but they are not strictly needed.

If you cloned the git repository, you need to compile extra files before you can run Electrum-NMC. Read the next section, "Development Version".

Development version

Check out the code from GitHub:

git clone git://
cd electrum-nmc

Run install (this should install dependencies):

python3 -m pip install .[fast]

Render the SVG icons to PNGs (optional):

for i in lock unlock confirmed status_lagging status_disconnected status_connected_proxy status_connected status_waiting preferences namecoin-logo; do convert -background none icons/$i.svg icons/$i.png; done

Compile the icons file for Qt:

sudo apt-get install pyqt5-dev-tools
pyrcc5 icons.qrc -o electrum_nmc/gui/qt/

Compile the protobuf description file:

sudo apt-get install protobuf-compiler
protoc --proto_path=electrum_nmc --python_out=electrum_nmc electrum_nmc/paymentrequest.proto

Create translations (optional):

sudo apt-get install python-requests gettext

Creating Binaries

To create binaries, create the 'packages' directory:


This directory contains the python dependencies used by Electrum-NMC.

Mac OS X / macOS

See contrib/build-osx/.


See contrib/build-wine/.


See electrum_nmc/gui/kivy/ file.

AuxPoW Branch

Electrum-NMC also maintains an auxpow branch. This branch is identical to the upstream Bitcoin version of Electrum (e.g. it doesn't have any name support or Namecoin rebranding), except that it supports AuxPoW (merged mining). It may be useful as a starting point for porting Electrum to other AuxPoW-based cryptocurrencies.