Add BECH32_HRP in network parameters

Author: Martino Salvetti

bitcoin/__init__.py

@@ -31,6 +31,7 @@ class MainParams(bitcoin.core.CoreMainParams):
     BASE58_PREFIXES = {'PUBKEY_ADDR':0,
                        'SCRIPT_ADDR':5,
                        'SECRET_KEY' :128}
+    BECH32_HRP = 'bc'
 
 class TestNetParams(bitcoin.core.CoreTestNetParams):
     MESSAGE_START = b'\x0b\x11\x09\x07'
@@ -43,6 +44,7 @@ class TestNetParams(bitcoin.core.CoreTestNetParams):
     BASE58_PREFIXES = {'PUBKEY_ADDR':111,
                        'SCRIPT_ADDR':196,
                        'SECRET_KEY' :239}
+    BECH32_HRP = 'tb'
 
 class RegTestParams(bitcoin.core.CoreRegTestParams):
     MESSAGE_START = b'\xfa\xbf\xb5\xda'
@@ -52,6 +54,7 @@ class RegTestParams(bitcoin.core.CoreRegTestParams):
     BASE58_PREFIXES = {'PUBKEY_ADDR':111,
                        'SCRIPT_ADDR':196,
                        'SECRET_KEY' :239}
+    BECH32_HRP = 'tb'
 
 """Master global setting for what chain params we're using.
 

bitcoin/bech32.py

@@ -20,6 +20,7 @@
     _bord = lambda x: x
 
 from bitcoin.segwit_addr import encode, decode
+import bitcoin
 
 class Bech32Error(Exception):
     pass
@@ -34,7 +35,7 @@ class CBech32Data(bytes):
     """
     def __new__(cls, s):
         """from bech32 addr to """
-        witver, data = decode('bc', s)  # TODO: bc from bitcoin.params
+        witver, data = decode(bitcoin.params.BECH32_HRP, s)
         if witver is None and data is None:
             raise Bech32Error('Bech32 decoding error')
 
@@ -68,7 +69,7 @@ def to_bytes(self):
 
     def __str__(self):
         """Convert to string"""
-        return encode('bc', self.witver, self)  # TODO: bc from bitcoin.params
+        return encode(bitcoin.params.BECH32_HRP, self.witver, self)
 
     def __repr__(self):
         return '%s(%r)' % (self.__class__.__name__, str(self))