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def test_82_workbook_throws_exception(self):
with self.assertRaises(TableauVersionNotSupportedException):
wb = Workbook(TABLEAU_82_TWB)
def test_82_workbook_throws_exception(self):
with self.assertRaises(TableauVersionNotSupportedException):
wb = Workbook(TABLEAU_82_TWB)
def xml_open(filename, expected_root=None):
"""Opens the provided 'filename'. Handles detecting if the file is an archive,
detecting the document version, and validating the root tag."""
# Is the file a zip (.twbx or .tdsx)
if zipfile.is_zipfile(filename):
tree = get_xml_from_archive(filename)
else:
tree = ET.parse(filename)
# Is the file a supported version
tree_root = tree.getroot()
file_version = Version(tree_root.attrib.get('version', '0.0'))
if file_version < MIN_SUPPORTED_VERSION:
raise TableauVersionNotSupportedException(file_version)
# Does the root tag match the object type (workbook or data source)
if expected_root and (expected_root != tree_root.tag):
raise TableauInvalidFileException(
"'{}'' is not a valid '{}' file".format(filename, expected_root))
return tree