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group reference: (?P<name>.)(?P=name)
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Methods
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__init__
__str__
copy
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__init__
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__init__ ( self, name )
(name)
Match the same text previously found by the given named group
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__str__
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__str__ ( self )
the corresponding pattern string
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copy
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copy ( self )
do a deep copy on this Expression tree
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