unfinished changes, needs to be continued

userconfig/cfgfile.py

@@ -0,0 +1,57 @@
+import configparser
+import os
+
+
+class Conf(object):
+    _confobj = configparser.ConfigParser(os.environ)
+    _cfgfiles = []
+    debug = None
+
+    def __init__(self, filename=None, debug=None):
+        if debug:
+            self.set_debug(debug)
+        filenames = []
+        if filename:
+            filenames.append(filename)
+        filenames.append(f'{os.environ.get("HOME")}/etc/userconfig2.conf')
+        ret = self.set_filenames(filenames)
+        if not ret:
+            raise ValueError(f'Cannot open either configuration file: {",".join(filenames)}')
+
+    def set_debug(self, debug):
+        self.debug = debug
+
+    def set_filenames(self, filenames):
+        ret = self._confobj.read(filenames)
+        if len(ret) == 0:
+            return None
+        if self.debug:
+            self.debug.stdout("Read config files: %s" % ", ".join(filenames), 2)
+        return ret
+
+    def get(self, option, boolean=False, section='userconfig'):
+        try:
+            if boolean:
+                return self._confobj.getboolean(section, option)
+            else:
+                return self._confobj.get(section, option)
+        except (configparser.NoOptionError, configparser.NoOptionError) as e:
+            raise ValueError(f'Option {option} does not exist in section {section}: {e}')
+
+    def set(self, option, value, section='userconfig'):
+        try:
+            self._confobj.set(section, option, value)
+        except configparser.NoSectionError as e:
+            raise ValueError(f'Section {section} does not exist: {e}')
+
+    def get_items(self, section='userconfig'):
+        try:
+            return self._confobj.items(section)
+        except configparser.NoSectionError as e:
+            raise ValueError(f'Section {section} does not exist: {e}')
+
+    def check(self, option, section='userconfig'):
+        return self._confobj.has_option(section, option)
+
+    def sections(self):
+        return self._confobj.sections()