Merge pull request #305 from dalf/fix-engine-logger

[fix] logger per engine: make .logger is always initialized

searx/engines/__init__.py

@@ -110,10 +110,26 @@ def load_engine(engine_data):
     if is_missing_required_attributes(engine):
         return None
 
-    engine.logger = logger.getChild(engine_name)
+    set_loggers(engine, engine_name)
+
     return engine
 
 
+def set_loggers(engine, engine_name):
+    # set the logger for engine
+    engine.logger = logger.getChild(engine_name)
+    # the engine may have load some other engines
+    # may sure the logger is initialized
+    for module_name, module in sys.modules.items():
+        if (
+            module_name.startswith("searx.engines")
+            and module_name != "searx.engines.__init__"
+            and not hasattr(module, "logger")
+        ):
+            module_engine_name = module_name.split(".")[-1]
+            module.logger = logger.getChild(module_engine_name)
+
+
 def update_engine_attributes(engine, engine_data):
     # set engine attributes from engine_data
     for param_name, param_value in engine_data.items():

searx/engines/openstreetmap.py

@@ -438,8 +438,3 @@ def get_key_label(key_name, lang):
         if labels is None:
             return None
     return get_label(labels, lang)
-
-
-def init(_):
-    import searx.engines.wikidata  # pylint: disable=import-outside-toplevel
-    searx.engines.wikidata.logger = logger