removing unused config parsers

removed both localParser and globalParser. also removed write and set()
functions. Assuming they're holdovers from the web gui psiturk version
(pre-shell days).

psiturk/psiturk_config.py

@@ -17,11 +17,6 @@ def __init__(self, localConfig="config.txt", globalConfigName=".psiturkconfig",
         self.parent.__init__(self, **kwargs)
         self.localFile = localConfig
         self.globalFile = os.path.expanduser(globalConfig)
-        # psiturkConfig contains two additional SafeConfigParser's holding the values
-        # of the local and global config files. This lets us write to the local or global file
-        # separately without writing all fields to both.
-        self.localParser = self.parent(**kwargs)
-        self.globalParser = self.parent(**kwargs)
 
     def load_config(self):
         defaults_folder = os.path.join(os.path.dirname(__file__), "default_configs")
@@ -30,7 +25,6 @@ def load_config(self):
         if not os.path.exists(self.localFile):
             print "ERROR - no config.txt file in the current directory. \n\nAre you sure this directory is a valid psiTurk experiment?  If you are starting a new project run 'psiturk-setup-example' first."
             exit()
-        self.localParser.read( self.localFile)
         if not os.path.exists(self.globalFile):
             if 'OPENSHIFT_SECRET_TOKEN' in os.environ:
                 print "No '.psiturkconfig' file found in your " + os.environ['OPENSHIFT_DATA_DIR'] + " directory.\nCreating default " + self.globalFile + " file."
@@ -39,36 +33,8 @@ def load_config(self):
             else:
                 print "No '.psiturkconfig' file found in your home directory.\nCreating default ~/.psiturkconfig file."
             file_util.copy_file(global_defaults_file, self.globalFile)
-        self.globalParser.read(self.globalFile)
         # read default global and local, then user's global and local. This way
         # any field not in the user's files will be set to the default value.
         self.read([global_defaults_file, local_defaults_file, self.globalFile, self.localFile])
-
-    def write(self, changeGlobal=False):
-        """
-        write to the user's global or local config file.
-        """
-        filename = self.localFile
-        configObject = self.localParser
-        if changeGlobal:
-            filename = self.globalFile
-            configObject = self.globalParser
-        with open(filename, 'w') as fp:
-            configObject.write(fp)
-
-    def set(self, section, field, value, changeGlobal=False,  *args, **kwargs):
-        """
-        Set the given field in the given section to the given value.
-        Return True if the server needs to be rebooted.
-        """
-        self.parent.set(self, section, field, str(value), *args, **kwargs)
-        if changeGlobal:
-            self.globalParser.set(section, field, str(value), *args, **kwargs)
-        else:
-            self.localParser.set(section, field, str(value), *args, **kwargs)
-        self.write(changeGlobal)
-        if section in ["Server Parameters","Task Parameters","Database Parameters"]:
-            return True
-        else:
-            return False
+