reverted use of os.ftruncate in languages because not portable on windows but removed unlocking when locked shared, should be tested

VERSION

@@ -1 +1 @@
-Version 1.99.4 (2012-01-12 22:51:51) stable
+Version 1.99.4 (2012-01-13 23:00:13) stable

gluon/languages.py

@@ -37,18 +37,11 @@ regex_language = \
     re.compile('^[a-zA-Z]{2}(\-[a-zA-Z]{2})?(\-[a-zA-Z]+)?$')
 
 
-class FilenoFile():
-    """ Class to wrap a file descriptor like a file object does. """
-    def __init__(self, fd):
-        self.fd = fd
-
-    def fileno(self):
-        return self.fd
-
 def read_dict_aux(filename):
     fp = open(filename, 'r')
     portalocker.lock(fp, portalocker.LOCK_SH)
     lang_text = fp.read().replace('\r\n', '\n')
+    # needed? portalocker.unlock(fp)
     fp.close()
     if not lang_text.strip():
         return {}
@@ -98,20 +91,20 @@ def utf8_repr(s):
 
 def write_dict(filename, contents):
     try:
-        fd = os.open(filename, os.O_RDWR | os.O_CREAT)
+        fp = open(filename, 'w')
     except (IOError, OSError):
         if not is_gae:
             logging.warning('Unable to write to file %s' % filename)
         return
-    portalocker.lock(FilenoFile(fd), portalocker.LOCK_EX)
-    os.ftruncate(fd, 0)
-    fp = os.fdopen(fd, 'w')
+    portalocker.lock(fp, portalocker.LOCK_EX)
     fp.write('# coding: utf8\n{\n')
     for key in sorted(contents):
         fp.write('%s: %s,\n' % (utf8_repr(key), utf8_repr(contents[key])))
     fp.write('}\n')
+    portalocker.unlock(fp)
     fp.close()
 
+
 class lazyT(object):
 
     """