Skip unnecessary lookups in balance call

python/CHANGELOG

@@ -1,3 +1,8 @@
+* 0.5.6
+	- Remove name and symbol lookup
+	- Remove decimals lookup for raw output
+* 0.5.5
+	- Implement chainlib-gen for giftable token
 * 0.5.4
 	- Enable setting sender address on contract read calls
 * 0.5.3

python/MANIFEST.in

@@ -1 +1 @@
-include **/data/ERC20.json **/data/GiftableToken.json **/data/GiftableToken.bin *requirements.txt CHANGELOG LICENSE WAIVER WAIVER.asc
+include **/data/ERC20.json **/data/GiftableToken.json **/data/GiftableToken.bin *requirements.txt CHANGELOG LICENSE WAIVER WAIVER.asc **/data/.chainlib 

python/eth_erc20/runnable/balance.py

@@ -94,20 +94,21 @@ def main():
             )
 
     # determine decimals
-    decimals_o = g.decimals(token_address, sender_address=sender_address)
-    r = conn.do(decimals_o)
-    decimals = int(strip_0x(r), 16)
-    logg.info('decimals {}'.format(decimals))
+    if not config.get('_RAW'):
+        decimals_o = g.decimals(token_address, sender_address=sender_address)
+        r = conn.do(decimals_o)
+        decimals = int(strip_0x(r), 16)
+        logg.info('decimals {}'.format(decimals))
 
-    name_o = g.name(token_address, sender_address=sender_address)
-    r = conn.do(name_o)
-    token_name = g.parse_name(r)
-    logg.info('name {}'.format(token_name))
-
-    symbol_o = g.symbol(token_address, sender_address=sender_address)
-    r = conn.do(symbol_o)
-    token_symbol = g.parse_symbol(r)
-    logg.info('symbol {}'.format(token_symbol))
+#    name_o = g.name(token_address, sender_address=sender_address)
+#    r = conn.do(name_o)
+#    token_name = g.parse_name(r)
+#    logg.info('name {}'.format(token_name))
+#
+#    symbol_o = g.symbol(token_address, sender_address=sender_address)
+#    r = conn.do(symbol_o)
+#    token_symbol = g.parse_symbol(r)
+#    logg.info('symbol {}'.format(token_symbol))
 
     # get balance
     balance_o = g.balance(token_address, settings.get('RECIPIENT'), sender_address=sender_address)
@@ -115,7 +116,10 @@ def main():
    
     hx = strip_0x(r)
     balance_value = int(hx, 16)
-    logg.debug('balance {} = {} decimals {}'.format(even(hx), balance_value, decimals))
+    if config.get('_RAW'):
+        logg.debug('balance {} = {}'.format(even(hx), balance_value))
+    else:
+        logg.debug('balance {} = {} decimals {}'.format(even(hx), balance_value, decimals))
 
     balance_str = str(balance_value)
     balance_len = len(balance_str)

python/giftable_erc20_token/__init__.py

@@ -1 +1,4 @@
 from .factory import GiftableToken
+from .factory import bytecode
+from .factory import create
+from .factory import args

python/giftable_erc20_token/factory.py

@@ -24,16 +24,22 @@ class GiftableToken(TxFactory):
     __abi = None
     __bytecode = None
 
-    def constructor(self, sender_address, name, symbol, decimals, tx_format=TxFormat.JSONRPC):
-        code = GiftableToken.bytecode()
+    def constructor(self, sender_address, name, symbol, decimals, tx_format=TxFormat.JSONRPC, version=None):
+        code = self.cargs(name, symbol, decimals)
+        tx = self.template(sender_address, None, use_nonce=True)
+        tx = self.set_code(tx, code)
+        return self.finalize(tx, tx_format)
+
+
+    @staticmethod
+    def cargs(name, symbol, decimals, version=None):
+        code = GiftableToken.bytecode(version=version)
         enc = ABIContractEncoder()
         enc.string(name)
         enc.string(symbol)
         enc.uint256(decimals)
         code += enc.get()
-        tx = self.template(sender_address, None, use_nonce=True)
-        tx = self.set_code(tx, code)
-        return self.finalize(tx, tx_format)
+        return code
 
 
     @staticmethod
@@ -51,7 +57,7 @@ class GiftableToken(TxFactory):
 
 
     @staticmethod
-    def bytecode():
+    def bytecode(version=None):
         if GiftableToken.__bytecode == None:
             f = open(os.path.join(data_dir, 'GiftableToken.bin'))
             GiftableToken.__bytecode = f.read()
@@ -97,3 +103,17 @@ class GiftableToken(TxFactory):
         return tx
 
 
+def bytecode(**kwargs):
+    return GiftableToken.bytecode(version=kwargs.get('version'))
+
+
+def create(**kwargs):
+    return GiftableToken.cargs(kwargs['name'], kwargs['symbol'], kwargs['decimals'], version=kwargs.get('version'))
+
+
+def args(v):
+    if v == 'create':
+        return (['name', 'symbol', 'decimals'], ['version'],)
+    elif v == 'default' or v == 'bytecode':
+        return ([], ['version'],)
+    raise ValueError('unknown command: ' + v)

python/requirements.txt

@@ -1,3 +1,4 @@
 confini~=0.6.1
 chainlib-eth~=0.4.15
+chainlib~=0.4.8
 potaahto~=0.1.1

python/setup.cfg

@@ -1,6 +1,6 @@
 [metadata]
 name = eth-erc20
-version = 0.5.4
+version = 0.5.6
 description = ERC20 interface and simple contract with deployment script that lets any address mint and gift itself tokens.
 author = Louis Holbrook
 author_email = dev@holbrook.no