Change the default logger creation

* It is now possible to pass a str with a log level
* If no logger is passed, we getLogger(__name__)
* A stream handler is added on the newly created logger, only if it doesnt have one already.

core/ArchiveExtractor.py

@@ -30,7 +30,7 @@ class ArchiveExtractor:
             self,
             extractorKind='H', extractorNumber=2,
             extractorPath=None,
-            logger=logging.getLogger("ArchiveExtractor")
+            logger='info',
             ):
         """
         Constructor function
@@ -47,16 +47,29 @@ class ArchiveExtractor:
             Tango path to the extractor.
             If this argument is given, it takes precedence over extractorKind and extractorNumber.
 
-        logger: logging.Logger
-            Logger object to use
+        logger: logging.Logger, str
+            Logger object to use.
+            If string, can be a log level. A basic logger with stream handler will be instanciated.
+            Default to 'info'.
 
         Return
         ------
         ArchiveExtractor
         """
 
+        #######################################################
         # Get logger
-        self.logger = logger
+        if type(logger) == logging.Logger:
+            self.logger = logger
+        else:
+            self.logger = logging.getLogger(__name__)
+            self.logger.setLevel(getattr(logging, logger.upper()))
+            if not self.logger.hasHandlers():
+                # No handlers, create one
+                sh = logging.StreamHandler()
+                sh.setLevel(self.logger.level)
+                sh.setFormatter(logging.Formatter("%(levelname)s:%(message)s"))
+                self.logger.addHandler(sh)
 
         #######################################################
         # Select Extractor