replacing bash

pythonrewrite/bin2/CryptoBoxPreferences.py

@@ -0,0 +1,132 @@
+#!/usr/bin/env python
+"""
+This Class is derived mainly from 'gimini' project.
+    __version__ = "$Revision: 1.1 $"
+    __author__ = "C.Dutoit <dutoitc@hotmail.com>"
+    __date__ = "2003-2-14"
+
+Thanx to Dutoit!
+"""
+
+from ConfigParser import *
+import sys, os
+
+### Set the Preferences filename
+PREFS_FILENAME="cbx.conf"
+
+class Preferences:
+    """
+    This class handle preferences and store them into 'PREFS_FILENAME'
+
+    To use it :
+      - instanciate a Preferences object : 
+        myPP=Preferences()
+      - to get a preference :
+        mypref=myPP["ma_preference"]
+      - to set a preference :
+        myPP["ma_preference"]=xxx
+
+    The preferences are automatically loaded on the first instanciation of this
+    class and are saved when a value is added or changed automatically, too.
+    """
+    def __init__(self):
+        """
+        Constructor
+
+        @author C.Dutoit <dutoitc@hotmail.com>
+        """
+        self._config = None
+        self.__loadConfig()
+
+    #>--------------------------------------------------------------------------
+
+    def __getitem__(self, name):
+        """
+        Return the preferences for the given item
+
+        @param String name : Name of the item for which we return a value
+        @return String : value of the pref, or None if inexistant
+        @since 1.1.2.7
+        @author C.Dutoit <dutoitc@hotmail.com>
+        """
+        if not self._config.has_section("Main"):
+	    print "No section: \"[Main]\""
+            return None
+
+        try:
+            return self._config.get("Main", name)
+        except NoOptionError:
+	    print "No such option: \"" + name +"\""
+            return None
+
+    #>--------------------------------------------------------------------------
+
+    def __setitem__(self, name, value):
+        """
+        Return the preferences for the given item
+
+        @param String name : Name of the item WITHOUT SPACES
+        @param String Value : Value for the given name
+        @raises TypeError : if the name contains spaces
+        @since 1.1.2.7
+        @author C.Dutoit <dutoitc@hotmail.com>
+        """
+        # Add 'Main' section ?
+        if not self._config.has_section("Main"):
+            self._config.add_section("Main")
+
+        if " " in list(name):
+            raise TypeError, "Name cannot contain a space"
+
+        # Save
+        self._config.set("Main", name, str(value))
+        self.__saveConfig()
+
+    #>--------------------------------------------------------------------------
+
+    def __saveConfig(self):
+        """
+        Save datas to config file
+
+        @since 1.1.2.5
+        @author C.Dutoit <dutoitc@hotmail.com>
+        """
+        f=open(PREFS_FILENAME, "w")
+        self._config.write(f)
+        f.close()
+
+    #>--------------------------------------------------------------------------
+
+    def __loadConfig(self):
+        """
+        Load datas from config file
+
+        @since 1.1.2.5
+        @author C.Dutoit <dutoitc@hotmail.com>
+        """
+        # Make sure that the configuration file exist
+        try:
+            f = open(PREFS_FILENAME, "r")
+            f.close()
+        except:
+            try:
+                f = open(PREFS_FILENAME, "w")
+                f.write("")
+                f.close()
+            except:
+                print "Can't make %s for saving preferences !" % PREFS_FILENAME
+                return
+
+
+        # Read datas
+        self._config=ConfigParser()
+        self._config.read(PREFS_FILENAME)
+
+    #>--------------------------------------------------------------------------
+
+if __name__ == "__main__":
+    myPP=Preferences()
+    mypref=myPP["ma_preference"]
+    myPP["ma_preference"]="xxx"
+
+