Electrum: Support Ledger

[franzos]

ledger: (error getting device infos)
    Missing libraries for ledger.
        ModuleNotFoundError("No module named 'ledger_bitcoin'")

I already tried packaging this, but I have trouble with python-coincurve. It seems to be trying to do network requests, during the build:

WARNING: Retrying (Retry(total=4, connect=None, read=None, redirect=None, status=None)) after connection broken by 'NewConnectionError('<pip._vendor.urllib3.connection.HTTPSConnection object at 0x7ffff55258d0>: Failed to establish a new connection: [Errno -3] Temporary failure in name resolution')': /simple/requests/

Here's what I've got so far:

(define-public python-ledgercomm
  (package
    (name "python-ledgercomm")
    (version "1.2.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "ledgercomm" version))
       (sha256
        (base32 "019f13h59yxxhyhvi5xz8b20pfhazbvn9sgx5x98mp2shj6cks8y"))))
    (build-system pyproject-build-system)
    (home-page "https://github.com/LedgerHQ/ledgercomm")
    (synopsis "Library to communicate with Ledger Nano S/X and Speculos")
    (description "Library to communicate with Ledger Nano S/X and Speculos")
    (license #f)))

(define-public python-coincurve
  (package
    (name "python-coincurve")
    (version "18.0.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "coincurve" version))
       (sha256
        (base32 "1hagr7hicfc1hkg5lfxj0di53bp3rbpq0rz5h279v80pwjpjcrn8"))))
    (build-system python-build-system)
    (inputs (list python-hidapi python-ecdsa python-pyaes python-click))
    (arguments
     `(#:tests? #f))
    (home-page "https://github.com/Coldcard/ckcc-protocol")
    (synopsis "Cross-platform Python CFFI bindings for libsecp256k1")
    (description "Cross-platform Python CFFI bindings for libsecp256k1")
    (license license:expat)))

(define-public python-bip32
  (package
    (name "python-bip32")
    (version "3.4")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "bip32" version))
       (sha256
        (base32 "040sysllmshpi9h1byp3xd4wr3lxahhabxd475n97plyv4jk4889"))))
    (build-system pyproject-build-system)
    (propagated-inputs (list python-base58 python-coincurve))
    (home-page "http://github.com/darosior/python-bip32")
    (synopsis "Minimalistic implementation of the BIP32 key derivation scheme")
    (description
     "Minimalistic implementation of the BIP32 key derivation scheme")
    (license license:expat)))

(define-public python-ledger-bitcoin
  (package
    (name "python-ledger-bitcoin")
    (version "0.2.2")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "ledger_bitcoin" version))
       (sha256
        (base32 "1wjanpaw0rlwzzxyfy21cpwcwf8k5k8ysl8pj40yq831ig06wiih"))))
    (build-system pyproject-build-system)
    (propagated-inputs (list python-bip32 python-coincurve python-ledgercomm
                             python-packaging python-typing-extensions))
    (arguments
     `(#:tests? #f))
    (home-page "https://github.com/LedgerHQ/app-bitcoin-new")
    (synopsis "Client for Ledger Nano Bitcoin application")
    (description "Python library and command line tool for 
communicating with your Ledger over USB")
    (license license:expat)))

Probably because of https://github.com/ofek/coincurve/blob/master/setup.py#L50

---

EDIT: With a couple of changes:

(define-public python-coincurve
  (package
    (name "python-coincurve")
    (version "18.0.0")
    (source
     (origin
       (method url-fetch)
       (uri (pypi-uri "coincurve" version))
       (sha256
        (base32 "1hagr7hicfc1hkg5lfxj0di53bp3rbpq0rz5h279v80pwjpjcrn8"))))
    (build-system pyproject-build-system)
    (propagated-inputs (list python-asn1crypto
                             python-cffi
                             libsecp256k1
                             autoconf
                             automake
                             libtool))
    (home-page "")
    (synopsis "Cross-platform Python CFFI bindings for libsecp256k1")
    (description "Cross-platform Python CFFI bindings for libsecp256k1")
    (license #f)))

which fails with

error: [Errno 2] No such file or directory: '/tmp/guix-build-python-coincurve-18.0.0.drv-0/coincurve-18.0.0/libsecp256k1/configure'
error: in phase 'build': uncaught exception:
%exception #<&invoke-error program: "python" arguments: ("-c" "import sys, importlib, json\nconfig_settings = json.loads (sys.argv[3])\nbuilder = importlib.import_module(sys.argv[1])\nbuilder.build_wheel(sys.argv[2], config_settings=config_settings)" "setuptools.build_meta" "dist" "[]") exit-status: 1 term-signal: #f stop-signal: #f> 
phase `build' failed after 5.6 seconds
command "python" "-c" "import sys, importlib, json\nconfig_settings = json.loads (sys.argv[3])\nbuilder = importlib.import_module(sys.argv[1])\nbuilder.build_wheel(sys.argv[2], config_settings=config_settings)" "setuptools.build_meta" "dist" "[]" failed with status 1