Various fixes for command line. Make 'payto' command require network (fixes #1525)

electrum

@@ -79,7 +79,7 @@ if is_bundle or is_local or is_android:
 
 from electrum import util
 from electrum import SimpleConfig, Network, Wallet, WalletStorage
-from electrum.util import print_msg, print_error, print_stderr, print_json, set_verbosity, InvalidPassword
+from electrum.util import print_msg, print_error, print_stderr, json_encode, json_decode, set_verbosity, InvalidPassword
 from electrum.plugins import Plugins, run_hook, always_hook
 from electrum.commands import get_parser, known_commands, Commands, config_variables
 
@@ -251,15 +251,9 @@ def run_command(config, network, password):
     # arguments passed to function
     args = map(lambda x: config.get(x), cmd.params)
     # decode json arguments
-    def json_decode(x):
-        try:
-            return json.loads(x)
-        except:
-            return x
     args = map(json_decode, args)
     # options
     args += map(lambda x: config.get(x), cmd.options)
-
     cmd_runner = Commands(config, wallet, network)
     cmd_runner.password = password
     func = getattr(cmd_runner, cmd.name)
@@ -467,13 +461,15 @@ if __name__ == '__main__':
     gui_name = config.get('gui', 'qt') if cmd_name == 'gui' else 'cmdline'
     plugins = Plugins(config, is_bundle or is_local or is_android, gui_name)
 
-    # get password if needed
+    # run command offline
     if cmd_name not in ['gui', 'daemon']:
         cmd, password = init_cmdline(config)
         if not cmd.requires_network or config.get('offline'):
             result = run_command(config, None, password)
-            print_json(result)
-            sys.exit(1)
+            print_msg(json_encode(result))
+            sys.exit(0)
+        else:
+            config_options['password'] = password
 
     # check if daemon is running
     s = get_daemon(config, False)
@@ -485,11 +481,10 @@ if __name__ == '__main__':
         s.close()
         if type(result) in [str, unicode]:
             print_msg(result)
+        elif type(result) is dict and result.get('error'):
+            print_stderr(result.get('error'))
         elif result is not None:
-            if type(result) is dir and result.get('error'):
-                print_stderr(result.get('error'))
-            else:
-                print_json(result)
+            print_msg(json_encode(result))
         sys.exit(0)
 
     # daemon is not running

gui/qt/console.py

@@ -213,9 +213,10 @@ class Console(QtGui.QPlainTextEdit):
                 try:
                     # eval is generally considered bad practice. use it wisely!
                     result = eval(command, self.namespace, self.namespace)
+                    result = util.json_encode(result)
                     if result != None:
                         if self.is_json:
-                            util.print_json(result)
+                            util.print_msg(result)
                         else:
                             self.appendPlainText(repr(result))
                 except SyntaxError:

lib/__init__.py

@@ -1,5 +1,5 @@
 from version import ELECTRUM_VERSION
-from util import format_satoshis, print_msg, print_json, print_error, set_verbosity
+from util import format_satoshis, print_msg, print_error, set_verbosity
 from wallet import Synchronizer, WalletStorage
 from wallet import Wallet, Imported_Wallet
 from network import Network, DEFAULT_SERVERS, DEFAULT_PORTS, pick_random_server

lib/commands.py

@@ -418,14 +418,14 @@ class Commands:
             self.wallet.sign_transaction(tx, self.password)
         return tx
 
-    @command('wp')
+    @command('wpn')
     def payto(self, destination, amount, tx_fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, deserialized=False):
         """Create a transaction. """
         domain = [from_addr] if from_addr else None
         tx = self._mktx([(destination, amount)], tx_fee, change_addr, domain, nocheck, unsigned)
         return tx.deserialize() if deserialized else tx
 
-    @command('wp')
+    @command('wpn')
     def paytomany(self, outputs, tx_fee=None, from_addr=None, change_addr=None, nocheck=False, unsigned=False, deserialized=False):
         """Create a multi-output transaction. """
         domain = [from_addr] if from_addr else None
@@ -657,8 +657,8 @@ arg_types = {
     'pubkeys': json.loads,
     'inputs': json.loads,
     'outputs': json.loads,
-    'tx_fee': lambda x: Decimal(x) if x is not None else None,
-    'amount': lambda x: Decimal(x) if x!='!' else '!',
+    'tx_fee': lambda x: float(x) if x is not None else None,
+    'amount': lambda x: float(x) if x!='!' else '!',
 }
 
 config_variables = {

lib/util.py

@@ -112,14 +112,18 @@ def print_msg(*args):
     sys.stdout.write(" ".join(args) + "\n")
     sys.stdout.flush()
 
-def print_json(obj):
+def json_encode(obj):
     try:
         s = json.dumps(obj, sort_keys = True, indent = 4, cls=MyEncoder)
     except TypeError:
         s = repr(obj)
-    sys.stdout.write(s + "\n")
-    sys.stdout.flush()
+    return s
 
+def json_decode(x):
+    try:
+        return json.loads(x)
+    except:
+        return x
 
 # decorator that prints execution time
 def profiler(func):

scripts/block_headers

@@ -3,11 +3,12 @@
 # A simple script that connects to a server and displays block headers
 
 import time
-import electrum
+from electrum import SimpleConfig, Network
+from electrum.util import print_msg, json_encode
 
 # start network
-c = electrum.SimpleConfig()
-network = electrum.Network(c)
+c = SimpleConfig()
+network = Network(c)
 network.start()
 
 # wait until connected
@@ -19,7 +20,7 @@ if not network.is_connected():
     sys.exit(1)
 
 # 2. send the subscription
-callback = lambda response: electrum.print_json(response.get('result'))
+callback = lambda response: print_msg(json_encode(response.get('result')))
 network.send([('blockchain.headers.subscribe',[])], callback)
 
 # 3. wait for results

scripts/get_history

@@ -1,7 +1,8 @@
 #!/usr/bin/env python
 
 import sys
-from electrum import Network, print_json
+from electrum import Network
+from electrum.util import json_encode, print_msg
 
 try:
     addr = sys.argv[1]
@@ -12,4 +13,4 @@ except Exception:
 n = Network()
 n.start()
 h = n.synchronous_get(('blockchain.address.get_history',[addr]))
-print_json(h)
+print_msg(json_encode(h))

scripts/watch_address

@@ -2,7 +2,8 @@
 
 import sys
 import time
-import electrum
+from electrum import SimpleConfig, Network
+from electrum.util import print_msg, json_encode
 
 try:
     addr = sys.argv[1]
@@ -11,8 +12,8 @@ except Exception:
     sys.exit(1)
 
 # start network
-c = electrum.SimpleConfig()
-network = electrum.Network(c)
+c = SimpleConfig()
+network = Network(c)
 network.start()
 
 # wait until connected
@@ -24,7 +25,7 @@ if not network.is_connected():
     sys.exit(1)
 
 # 2. send the subscription
-callback = lambda response: electrum.print_json(response.get('result'))
+callback = lambda response: print_msg(json_encode(response.get('result')))
 network.send([('blockchain.address.subscribe',[addr])], callback)
 
 # 3. wait for results