Merge petertodd#229: Fix incorrect use of NotImplementedError

aa18a92 Fix incorrect use of NotImplementedError (Wesley Kerfoot)

Pull request description:

  This was incorrect. I guess the author copy-pasted the code from
  somewhere or was thinking of `return NotImplemented` (which wouldn't
  even make sense here).

Merge remote-tracking branch 'weskerfoot/master' into 'master'

Tree-SHA512: 149e6c028ec663042bab925599a3662e209fed29b94cb2e4b376ce0186f2ff0843e5b9488b25732c0fcc208b4c5ea631d41d9f113011bdbcaa88d4ab5914beff

Author: kanzure

bitcoin/wallet.py

@@ -308,7 +308,7 @@ def to_scriptPubKey(self):
         return script.CScript([0, self])
 
     def to_redeemScript(self):
-        return NotImplementedError("not enough data in p2wsh address to reconstruct redeem script")
+        raise NotImplementedError("Not enough data in p2wsh address to reconstruct redeem script")
 
 
 class P2WPKHBitcoinAddress(CBech32BitcoinAddress):