Changed tweets, added eca

eca/util.py

@@ -0,0 +1,39 @@
+import os.path
+
+
+class NamespaceError(KeyError):
+    """Exception raised for errors in the NamespaceDict."""
+    pass
+
+
+class NamespaceDict(dict):
+    """
+    A dictionary that also allows access through attributes.
+
+    See http://docs.python.org/3.3/reference/datamodel.html#customizing-attribute-access
+    """
+
+    def __getattr__(self, name):
+        if name not in self:
+            raise NamespaceError(name)
+        return self[name]
+
+    def __setattr__(self, name, value):
+        self[name] = value
+
+    def __delattr__(self, name):
+        del self[name]
+
+
+def describe_function(fn):
+    """
+    Generates a human readable reference to the given function.
+    
+    This function is most useful when used on function defined in actual files.
+    """
+    parts = []
+    parts.append(fn.__name__)
+
+    parts.append(" ({}:{})".format(os.path.relpath(fn.__code__.co_filename), fn.__code__.co_firstlineno))
+
+    return ''.join(parts)