fix(TTS): Properly catch DevFailed on GetAttDefinitionData

* See issue #4
* TTS still unusable as is

ArchiveExtractor/Access.py

@@ -267,7 +267,14 @@ def infoattr(attribute, db='H'):
     info = dict()
 
     for func in ("GetAttDefinitionData", "GetAttPropertiesData"):
+        try:
             R=getattr(ae._Extractors[{'H':0, 'T':1}[db]], func)(attribute)
+        except tango.DevFailed:
+            logger.warning("Could not call command {} on extractor".format(func))
+            R=None
+
+        logger.debug(R)
+
         if not R is None:
             for i in R:
                 _s=i.split("::")

ArchiveExtractor/__init__.py

@@ -18,7 +18,7 @@ Quick usage in ipython shell:
 """
 
 # NB: Also change version number in setup.py
-__version__ = "2.4"
+__version__ = "2.4.1"
 
 __all__ = ["Access", ]
 

setup.py

@@ -3,7 +3,7 @@
 from distutils.core import setup
 
 setup(name='ArchiveExtractor',
-      version='2.4', # NB Also change version number in __init__.py
+      version='2.4.1', # NB Also change version number in __init__.py
       description='Python module for extracting data from Archive Extractor Tango Device.',
       url='https://gitlab.synchrotron-soleil.fr/dg/archiveextractor',
       license="GNU-GPL-v3",