fix typos

lib/bitcoin.py

@@ -745,7 +745,7 @@ def xprv_header(xtype):
 def xpub_header(xtype):
     return ("%08x"%(XPUB_HEADER + xtype)).decode('hex')
 
-def serialize_xpub(xtype, c, k):
+def serialize_xprv(xtype, c, k):
     xprv = xprv_header(xtype) + chr(0)*9 + c + chr(0) + k
     return EncodeBase58Check(xprv)
 
@@ -802,7 +802,7 @@ def bip32_root(seed, xtype):
     master_c = I[32:]
     K, cK = get_pubkeys_from_secret(master_k)
     xprv = serialize_xprv(xtype, master_c, master_k)
-    xpub = serialize_xpub(xtype, master_c + cK)
+    xpub = serialize_xpub(xtype, master_c, cK)
     return xprv, xpub
 
 def xpub_from_pubkey(xtype, cK):

lib/wallet.py

@@ -1631,15 +1631,15 @@ class P2SH:
 class Standard_Wallet(Simple_Deterministic_Wallet):
     wallet_type = 'standard'
 
-    def pubkeys_to_redeem_script(self, pubkeys):
+    def pubkeys_to_redeem_script(self, pubkey):
         if self.xpub_type == 1:
             return transaction.segwit_script(pubkey)
 
     def pubkeys_to_address(self, pubkey):
         if self.xpub_type == 0:
             return bitcoin.public_key_to_p2pkh(pubkey.decode('hex'))
-        elif self.xpub_type == 1 and TESTNET:
-            redeem_script = self.pubkeys_to_redeem_script(pubkeys)
+        elif self.xpub_type == 1 and bitcoin.TESTNET:
+            redeem_script = self.pubkeys_to_redeem_script(pubkey)
             return bitcoin.hash160_to_p2sh(hash_160(redeem_script.decode('hex')))
         else:
             raise NotImplementedError()