Ausgabe der neuen DB Einträge

venv/lib/python3.9/site-packages/twisted/logger/_util.py

@@ -0,0 +1,48 @@
+# -*- test-case-name: twisted.logger.test.test_util -*-
+# Copyright (c) Twisted Matrix Laboratories.
+# See LICENSE for details.
+
+"""
+Logging utilities.
+"""
+
+
+
+def formatTrace(trace):
+    """
+    Format a trace (that is, the contents of the C{log_trace} key of a log
+    event) as a visual indication of the message's propagation through various
+    observers.
+
+    @param trace: the contents of the C{log_trace} key from an event.
+    @type trace: object
+
+    @return: A multi-line string with indentation and arrows indicating the
+        flow of the message through various observers.
+    @rtype: L{unicode}
+    """
+    def formatWithName(obj):
+        if hasattr(obj, "name"):
+            return u"{0} ({1})".format(obj, obj.name)
+        else:
+            return u"{0}".format(obj)
+
+    result = []
+    lineage = []
+
+    for parent, child in trace:
+        if not lineage or lineage[-1] is not parent:
+            if parent in lineage:
+                while lineage[-1] is not parent:
+                    lineage.pop()
+
+            else:
+                if not lineage:
+                    result.append(u"{0}\n".format(formatWithName(parent)))
+
+                lineage.append(parent)
+
+        result.append(u"  " * len(lineage))
+        result.append(u"-> {0}\n".format(formatWithName(child)))
+
+    return u"".join(result)