merge bitcoin#22633: Replace remaining binascii method calls

contrib/linearize/linearize-data.py

@@ -17,7 +17,6 @@
 import time
 import glob
 from collections import namedtuple
-from binascii import unhexlify
 
 settings = {}
 
@@ -324,7 +323,7 @@ def run(self):
     settings['max_out_sz'] = int(settings['max_out_sz'])
     settings['split_timestamp'] = int(settings['split_timestamp'])
     settings['file_timestamp'] = int(settings['file_timestamp'])
-    settings['netmagic'] = unhexlify(settings['netmagic'].encode('utf-8'))
+    settings['netmagic'] = bytes.fromhex(settings['netmagic'])
     settings['out_of_order_cache_sz'] = int(settings['out_of_order_cache_sz'])
     settings['debug_output'] = settings['debug_output'].lower()
 

share/rpcauth/rpcauth.py

@@ -5,15 +5,14 @@
 
 from argparse import ArgumentParser
 from base64 import urlsafe_b64encode
-from binascii import hexlify
 from getpass import getpass
 from os import urandom
 
 import hmac
 
 def generate_salt(size):
     """Create size byte hex salt"""
-    return hexlify(urandom(size)).decode()
+    return urandom(size).hex()
 
 def generate_password():
     """Create 32 byte b64 password"""

src/test/serfloat_tests.cpp

@@ -102,11 +102,12 @@ BOOST_AUTO_TEST_CASE(double_serfloat_tests) {
 Python code to generate the below hashes:
 
     def reversed_hex(x):
-        return binascii.hexlify(''.join(reversed(x)))
+        return bytes(reversed(x)).hex()
+
     def dsha256(x):
         return hashlib.sha256(hashlib.sha256(x).digest()).digest()
 
-    reversed_hex(dsha256(''.join(struct.pack('<d', x) for x in range(0,1000)))) == '43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96'
+    reversed_hex(dsha256(b''.join(struct.pack('<d', x) for x in range(0,1000)))) == '43d0c82591953c4eafe114590d392676a01585d25b25d433557f0d7878b23f96'
 */
 BOOST_AUTO_TEST_CASE(doubles)
 {

test/util/bitcoin-util-test.py

@@ -10,7 +10,6 @@
 Can also be run manually."""
 
 import argparse
-import binascii
 import configparser
 import difflib
 import json
@@ -167,7 +166,7 @@ def parse_output(a, fmt):
     if fmt == 'json':  # json: compare parsed data
         return json.loads(a)
     elif fmt == 'hex':  # hex: parse and compare binary data
-        return binascii.a2b_hex(a.strip())
+        return bytes.fromhex(a.strip())
     else:
         raise NotImplementedError("Don't know how to compare %s" % fmt)