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Mango / exceptions.py

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class SettingError(Exception):
    def __init__(self, message, suggestion):
        super(SettingError, self).__init__()
        self.message = message
        self.suggestion = suggestion

    def html(self):
        d = {
            'name': self.__class__.__name__,
            'message': self.message,
            'suggestion': self.suggestion,
        }
        html = u'<html><head><title>%(name)s</title></head><body><h1>' + \
                u'%(name)s: %(message)s</h1><p>%(suggestion)s<p></body></html>'
        return html % d

class UndefinedSettingError(SettingError):
    def __init__(self, message, suggestion):
        super(UndefinedSettingError, self).__init__(message, suggestion)

class EmptySettingError(SettingError):
    def __init__(self, message, suggestion):
        super(EmptySettingError, self).__init__(message, suggestion)

class InvalidSettingError(SettingError):
    def __init__(self, message, suggestion):
        super(InvalidSettingError, self).__init__(message, suggestion)