Fix usage summary

[electrum-nvc.git] / electrum

diff --git a/electrum b/electrum
index 15edf60..8b004b3 100755 (executable)
--- a/electrum
+++ b/electrum
@@ -64,7 +64,7 @@ def prompt_password(prompt, confirm=True):
 
 def arg_parser():
     usage = "%prog [options] command"
-    parser = optparse.OptionParser(prog=usage, add_help_option=False)
+    parser = optparse.OptionParser(usage=usage, add_help_option=False)
     parser.add_option("-h", "--help", action="callback", callback=print_help_cb, help="show this help text")
     parser.add_option("-g", "--gui", dest="gui", help="User interface: qt, lite, gtk, text or stdio")
     parser.add_option("-w", "--wallet", dest="wallet_path", help="wallet path (default: electrum.dat)")
@@ -103,16 +103,15 @@ def print_help_cb(self, opt, value, parser):
     print_help(parser)
 
 
-def run_command(cmd, password=None, args=[]):
-    import socket
+def run_command(cmd, password=None, args=None):
+    if args is None:
+        args = []  # Do not use mutables as default values!
     if cmd.requires_network and not options.offline:
         network = NetworkProxy(config)
         if not network.start(start_daemon= (True if cmd.name!='daemon' else False)):
             print "Daemon not running"
             sys.exit(1)
 
-
-
         if wallet:
             wallet.start_threads(network)
             wallet.update()