Move Python scripts to examples dir

examples/ethBase.py

@@ -0,0 +1,51 @@
+#!/usr/bin/env python
+"""
+*******************************************************************************
+*   Ledger Blue
+*   (c) 2016 Ledger
+*
+*  Licensed under the Apache License, Version 2.0 (the "License");
+*  you may not use this file except in compliance with the License.
+*  You may obtain a copy of the License at
+*
+*      http://www.apache.org/licenses/LICENSE-2.0
+*
+*  Unless required by applicable law or agreed to in writing, software
+*  distributed under the License is distributed on an "AS IS" BASIS,
+*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+*  See the License for the specific language governing permissions and
+*  limitations under the License.
+********************************************************************************
+"""
+
+from rlp.sedes import big_endian_int, binary, Binary
+from rlp import Serializable
+
+try:
+	from Crypto.Hash import keccak
+	sha3_256 = lambda x: keccak.new(digest_bits=256, data=x).digest()
+except:
+	import sha3 as _sha3
+	sha3_256 = lambda x: _sha3.sha3_256(x).digest()
+address = Binary.fixed_length(20, allow_empty=True)
+
+def sha3(seed):
+	return sha3_256(str(seed))
+
+class Transaction(Serializable):
+	fields = [
+		('nonce', big_endian_int),
+		('gasprice', big_endian_int),
+		('startgas', big_endian_int),
+		('to', address),
+		('value', big_endian_int),
+		('data', binary),
+		('v', big_endian_int),
+		('r', big_endian_int),
+		('s', big_endian_int),
+	]	
+
+	def __init__(self, nonce, gasprice, startgas, to, value, data, v=0, r=0, s=0):
+		super(Transaction, self).__init__(nonce, gasprice, startgas, to, value, data, v, r, s)
+
+UnsignedTransaction = Transaction.exclude(['v', 'r', 's'])