adding initial version of data accessor

data_accessor.py

+from os import walk
+from os.path import join, dirname, abspath, basename
+
+_datadir = abspath(join(dirname(__file__), "data"))
+
+
+class AttrDict(dict):
+    def __init__(self, *args, **kwargs):
+        super(AttrDict, self).__init__(*args, **kwargs)
+        self.__dict__ = self
+
+
+class TestDataAccessor():
+    """Class to facilitate easy access to test data. Data is stored in a separate folder and accessed as attributes e.g.
+    TestDataAccessor().chrotel.l1_data will give you a list of filenames for chrotel level 1 data.
+
+    """
+
+    def __init__(self):
+        print(_datadir)
+
+        _container = AttrDict()
+
+        for root, dirs, files in walk(_datadir):
+            if files:
+                instr = basename(dirname(root))
+                data_type = basename(root)
+                files = [join(root, f) for f in files]
+
+                if instr not in _container:
+                    _container[instr] = AttrDict()
+
+                _container[instr][data_type] = files
+
+                print(instr, data_type, files)
+
+        self._container = _container
+
+    def __getattr__(self, item):
+        return self._container[item]
+
+    def __str__(self):
+        from pprint import pformat
+        return pformat(self._container)

importer_test_data/__init__.py

+from data_accessor import TestDataAccessor
+
+test_data = TestDataAccessor()