unit_tests.py ecc: Python 3.9 fixes; workflows: build secp256k1 extmod

.github/workflows/pylint.yaml

@@ -17,6 +17,10 @@ jobs:
     steps:
     - uses: actions/checkout@v4
 
+    - name: Install Ubuntu package dependencies
+      run: |
+        sudo apt-get install libsecp256k1-dev
+
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v4
       with:
@@ -30,6 +34,7 @@ jobs:
         python3 -m pip install gmpy2 cryptography pynacl ecdsa aiohttp requests pexpect scrypt semantic-version
         python3 -m pip install pycryptodomex pysocks pycoin ipaddress varint pylint
         python3 -m pip install --no-deps py_ecc==1.6.0 mypy_extensions==0.4.1 monero
+        python3 setup.py build_ext --inplace
 
     - name: Check the code with Pylint static code analyzer
       env:

mmgen/data/version

@@ -1 +1 @@
-14.1.dev4
+14.1.dev5

mmgen/proto/secp256k1/keygen.py

@@ -28,13 +28,8 @@ class backend:
 
 		def __init__(self,cfg):
 			super().__init__(cfg)
-			# catch ImportError to satisfy pylint when testing repo with unbuilt secp256k1 extension mod:
-			try:
-				from .secp256k1 import pubkey_gen
-				self.pubkey_gen = pubkey_gen
-			except ImportError:
-				from ...util import die
-				die(3,'libsecp256k1.keygen.backend: you shouldn’t be seeing this')
+			from .secp256k1 import pubkey_gen
+			self.pubkey_gen = pubkey_gen
 
 		def to_pubkey(self,privkey):
 			return PubKey(

test/unit_tests_d/ut_ecc.py

@@ -17,7 +17,7 @@ class unit_tests:
 
 	def pubkey_ops(self,name,ut):
 		vmsg(f'  Generating pubkey, adding scalar 123456789 to pubkey:')
-		pk_addend_bytes = int.to_bytes(123456789,length=32)
+		pk_addend_bytes = int.to_bytes(123456789,length=32,byteorder='big')
 
 		for privkey in (
 				'beadcafe' * 8,
@@ -46,15 +46,15 @@ class unit_tests:
 	def pubkey_errors(self,name,ut):
 
 		def gen1(): pubkey_gen(bytes(32),1)
-		def gen2(): pubkey_gen(secp256k1_group_order.to_bytes(length=32),1)
-		def gen3(): pubkey_gen((secp256k1_group_order+1).to_bytes(length=32),1)
+		def gen2(): pubkey_gen(secp256k1_group_order.to_bytes(length=32,byteorder='big'),1)
+		def gen3(): pubkey_gen((secp256k1_group_order+1).to_bytes(length=32,byteorder='big'),1)
 		def gen4(): pubkey_gen(bytes.fromhex('ff'*32),1)
 		def gen5(): pubkey_gen(bytes.fromhex('ab'*31),1)
 		def gen6(): pubkey_gen(bytes.fromhex('ab'*33),1)
 
 		pubkey_bytes = pubkey_gen(bytes.fromhex('beadcafe'*8), 1)
 		def tweak1(): pubkey_tweak_add(pubkey_bytes,bytes(32))
-		def tweak2(): pubkey_tweak_add(bytes.fromhex('03'*64),int.to_bytes(1,length=32))
+		def tweak2(): pubkey_tweak_add(bytes.fromhex('03'*64),int.to_bytes(1,length=32,byteorder='big'))
 
 		def check1(): pubkey_check(bytes.fromhex('04'*33))
 		def check2(): pubkey_check(bytes.fromhex('03'*65))