ConfigParser enhancements to edit existing configs, part 2

Lib/ConfigParser.py

@@ -36,6 +36,9 @@ ConfigParser -- responsible for for parsing a list of
     has_section(section)
         return whether the given section exists
 
+    has_option(section, option)
+        return whether the given option exists in the given section
+
     options(section)
         return list of configuration options for the named section
 
@@ -68,6 +71,18 @@ ConfigParser -- responsible for for parsing a list of
     getboolean(section, options)
         like get(), but convert value to a boolean (currently defined as 0 or
         1, only)
+
+    remove_section(section)
+	remove the given file section and all its options
+
+    remove_option(section, option)
+	remove the given option from the given section
+
+    set(section, option, value)
+        set the given option
+
+    write(fp)
+	write the configuration state in .ini format
 """
 
 import sys
@@ -310,18 +325,40 @@ class ConfigParser:
         """Write an .ini-format representation of the configuration state."""
         if self.__defaults:
             fp.write("[DEFAULT]\n")
-            for key in self.__defaults.keys():
-                fp.write(key + " = " + self.__defaults[key] + "\n")
+            for (key, value) in self.__defaults.items():
+                fp.write("%s = %s\n" % (key, value))
             fp.write("\n")
         for section in self.sections():
             fp.write("[" + section + "]\n")
             sectdict = self.__sections[section]
-            for key in sectdict.keys():
+            for (key, value) in sectdict.items():
                 if key == "__name__":
                     continue
-                fp.write(key + " = " + str(sectdict[key]) + "\n")
+                fp.write("%s = %s\n" % (key, value))
             fp.write("\n")
 
+    def remove_option(section, option):
+        """Remove an option."""
+        if not section or section == "DEFAULT":
+            sectdict = self.__defaults
+        else:
+            try:
+                sectdict = self.__sections[section]
+            except KeyError:
+                raise NoSectionError(section)
+        existed = sectdict.has_key(key)
+        if existed:
+            del sectdict[key]
+        return existed
+
+    def remove_section(section):
+        """Remove a file section."""
+        if self.__sections.has_key(section):
+            del self.__sections[section]
+            return 1
+        else:
+            return 0
+
     #
     # Regular expressions for parsing section headers and options.  Note a
     # slight semantic change from the previous version, because of the use
@@ -393,7 +430,6 @@ class ConfigParser:
                     mo = self.OPTCRE.match(line)
                     if mo:
                         optname, vi, optval = mo.group('option', 'vi', 'value')
-                        optname = string.lower(optname)
                         if vi in ('=', ':') and ';' in optval:
                             # ';' is a comment delimiter only if it follows
                             # a spacing character