# `TaurusAttributeNameValidator`

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class TaurusAttributeNameValidator(*p, **k)

  Base class for Attribute name validators. The namePattern will be composed from URI segments as follows:

  <scheme>:[<authority>/]<path>[?<query>][#<fragment>]

  Derived classes must provide attributes defining a regexp string for each URI segment (they can be empty strings):

  - scheme

  - authority

  - path

  - query

  - fragment

  Additionally, the namePattern resulting from composing the above segments must contain a named group called “attrname” (normally within the path segment).

  Import from `taurus.core.taurusvalidator` as:

      from taurus.core.taurusvalidator import TaurusAttributeNameValidator

  pattern = '^(?P<scheme>%(scheme)s):((?P<authority>%(authority)s)($|(?=[/#?])))?(?P<path>%(path)s)(\\?(?P<query>%(query)s))?(#(?P<fragment>%(fragment)s))?$'