#
#
# patch "tracmtn/automate.py"
#  from [e690c76f9e846869da4ce989ef87b775484e99b8]
#    to [8dfe915fa86a4380589606f4a0c16130bf9caf98]
#
============================================================
--- tracmtn/automate.py	e690c76f9e846869da4ce989ef87b775484e99b8
+++ tracmtn/automate.py	8dfe915fa86a4380589606f4a0c16130bf9caf98
@@ -2,7 +2,7 @@ Trac Plugin for Monotone
 """
 Trac Plugin for Monotone
 
-Copyright 2006-2008 Thomas Moschny (address@hidden)
+Copyright 2006-2010 Thomas Moschny (address@hidden)
 
 {{{
 This program is free software; you can redistribute it and/or modify
@@ -111,23 +111,26 @@ class Automate(object):
 
         cmdstring += "l"
         cmdstring += lstring(cmd)
-        for arg in args:
-            cmdstring += lstring(arg)
+        if args:
+            for arg in args:
+                cmdstring += lstring(arg)
         cmdstring += "e"
         self._write(cmdstring)
         self._flush()
 
     def read_headers(self):
+        """Starting with version 0.46, the mtn process outputs a
+        header upon startup."""
         headers = {}
         while True:
             line = self._readline().rstrip('\n')
             if not line:
                 break
-            key, value = map(lambda s: s.strip(), line.split(':'))
+            key, value = [s.strip() for s in line.split(':')]
             headers[key] = value
         return headers
 
-    def command(self, cmd, args=[], opts={}):
+    def command(self, cmd, args=None, opts=None):
         """Send a command to mtn. Returns a tuple (status, result)."""
         # critical region: only one thread may send a command and read
         # back the result at a time
@@ -288,8 +291,8 @@ class MTN(object):
 
     def branchnames(self):
         """Returns a list of branch names."""
-        return map(to_unicode, #IGNORE:W0141
-           self.automate.command("branches").splitlines())
+        return [to_unicode(b) for b in 
+           self.automate.command("branches").splitlines()]
 
     def branches(self):
         """Returns a list of (branch, oneoftheheads) tuples. Caveat:
@@ -347,6 +350,7 @@ class MTN(object):
         return self.interface_version
 
     def min_interface_version(self, v):
+        """True if the interface version is at least v."""
         return natsort_key(self.get_interface_version()) \
             >= natsort_key(v)