Issue #5412: extend configparser to support mapping access

Lib/logging/config.py

@@ -103,7 +103,7 @@ def _encoded(s):
 
 def _create_formatters(cp):
     """Create and return formatters"""
-    flist = cp.get("formatters", "keys")
+    flist = cp["formatters"]["keys"]
     if not len(flist):
         return {}
     flist = flist.split(",")
@@ -111,18 +111,10 @@ def _create_formatters(cp):
     formatters = {}
     for form in flist:
         sectname = "formatter_%s" % form
-        opts = cp.options(sectname)
-        if "format" in opts:
-            fs = cp.get(sectname, "format", 1)
-        else:
-            fs = None
-        if "datefmt" in opts:
-            dfs = cp.get(sectname, "datefmt", 1)
-        else:
-            dfs = None
+        fs = cp.get(sectname, "format", raw=True, fallback=None)
+        dfs = cp.get(sectname, "datefmt", raw=True, fallback=None)
         c = logging.Formatter
-        if "class" in opts:
-            class_name = cp.get(sectname, "class")
+        class_name = cp[sectname].get("class")
         if class_name:
             c = _resolve(class_name)
         f = c(fs, dfs)
@@ -132,7 +124,7 @@ def _create_formatters(cp):
 
 def _install_handlers(cp, formatters):
     """Install and return handlers"""
-    hlist = cp.get("handlers", "keys")
+    hlist = cp["handlers"]["keys"]
     if not len(hlist):
         return {}
     hlist = hlist.split(",")
@@ -140,30 +132,23 @@ def _install_handlers(cp, formatters):
     handlers = {}
     fixups = [] #for inter-handler references
     for hand in hlist:
-        sectname = "handler_%s" % hand
-        klass = cp.get(sectname, "class")
-        opts = cp.options(sectname)
-        if "formatter" in opts:
-            fmt = cp.get(sectname, "formatter")
-        else:
-            fmt = ""
+        section = cp["handler_%s" % hand]
+        klass = section["class"]
+        fmt = section.get("formatter", "")
         try:
             klass = eval(klass, vars(logging))
         except (AttributeError, NameError):
             klass = _resolve(klass)
-        args = cp.get(sectname, "args")
+        args = section["args"]
         args = eval(args, vars(logging))
         h = klass(*args)
-        if "level" in opts:
-            level = cp.get(sectname, "level")
+        if "level" in section:
+            level = section["level"]
             h.setLevel(logging._levelNames[level])
         if len(fmt):
             h.setFormatter(formatters[fmt])
         if issubclass(klass, logging.handlers.MemoryHandler):
-            if "target" in opts:
-                target = cp.get(sectname,"target")
-            else:
-                target = ""
+            target = section.get("target", "")
             if len(target): #the target handler may not be loaded yet, so keep for later...
                 fixups.append((h, target))
         handlers[hand] = h
@@ -197,20 +182,19 @@ def _install_loggers(cp, handlers, disable_existing):
     """Create and install loggers"""
 
     # configure the root first
-    llist = cp.get("loggers", "keys")
+    llist = cp["loggers"]["keys"]
     llist = llist.split(",")
     llist = list(map(lambda x: x.strip(), llist))
     llist.remove("root")
-    sectname = "logger_root"
+    section = cp["logger_root"]
     root = logging.root
     log = root
-    opts = cp.options(sectname)
-    if "level" in opts:
-        level = cp.get(sectname, "level")
+    if "level" in section:
+        level = section["level"]
         log.setLevel(logging._levelNames[level])
     for h in root.handlers[:]:
         root.removeHandler(h)
-    hlist = cp.get(sectname, "handlers")
+    hlist = section["handlers"]
     if len(hlist):
         hlist = hlist.split(",")
         hlist = _strip_spaces(hlist)
@@ -237,13 +221,9 @@ def _install_loggers(cp, handlers, disable_existing):
     child_loggers = []
     #now set up the new ones...
     for log in llist:
-        sectname = "logger_%s" % log
-        qn = cp.get(sectname, "qualname")
-        opts = cp.options(sectname)
-        if "propagate" in opts:
-            propagate = cp.getint(sectname, "propagate")
-        else:
-            propagate = 1
+        section = cp["logger_%s" % log]
+        qn = section["qualname"]
+        propagate = section.getint("propagate", fallback=1)
         logger = logging.getLogger(qn)
         if qn in existing:
             i = existing.index(qn)
@@ -255,14 +235,14 @@ def _install_loggers(cp, handlers, disable_existing):
                 child_loggers.append(existing[i])
                 i = i + 1
             existing.remove(qn)
-        if "level" in opts:
-            level = cp.get(sectname, "level")
+        if "level" in section:
+            level = section["level"]
             logger.setLevel(logging._levelNames[level])
         for h in logger.handlers[:]:
             logger.removeHandler(h)
         logger.propagate = propagate
         logger.disabled = 0
-        hlist = cp.get(sectname, "handlers")
+        hlist = section["handlers"]
         if len(hlist):
             hlist = hlist.split(",")
             hlist = _strip_spaces(hlist)