type SAXReaderNotAvailable

 object --+ 
 | 
exceptions.BaseException --+ 
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 exceptions.Exception --+ 
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 SAXException --+ 
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 SAXNotSupportedException --+
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 SAXReaderNotAvailable

Exception class for a missing driver.

An XMLReader module (driver) should raise this exception when it is first imported, e.g. when a support module cannot be imported. It also may be raised during parsing, e.g. if executing an external program is not permitted.