Use context to fix test on Windows due to file locking semantics
Also minor doc fix
@@ -1475,7 +1475,7 @@ cdef class Attr(object):
:param str name: Attribute name, empty if anonymous
:param dtype: Attribute value datatypes
:type dtype: numpy.dtype object or type or string
- :param var: Attribute is variable-length (automatic for byte/string tyeps)
+ :param var: Attribute is variable-length (automatic for byte/string types)
:type dtype: bool
:param filters: List of filters to apply
:type filters: FilterList
