def __getitem__(self, item):
for block_range, name in self._unicode_blocks.items():<EOL><INDENT>if item in block_range:<EOL><INDENT>return name<EOL><DEDENT><DEDENT>return u"<STR_LIT>"<EOL>
Function for retrieving the Unicode Block name associated with the specified Unicode scalar value.

:param item: Unicode scalar value to look up.
:return: Unicode Block name associated with the specified value.