#7619: Pickling support for finite word defined by callable and iterable
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Reporter: slabbe | Owner: slabbe
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.3
Component: combinatorics | Keywords:
Work_issues: | Author:
Upstream: N/A | Reviewer:
Merged: |
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Currently pickling doesn't work for finite word defined by iterator and
callable :
{{{
sage: w = Word(iter('abcdefghijkl'))
sage: loads(dumps(w))
Traceback (most recent call last):
...
PicklingError: Can't pickle <type 'generator'>: attribute lookup
__builtin__.generator failed
}}}
This is not too hard to support. One just have to expand the iterator to a
list (or a tuple?) and save the list instead:
{{{
sage: w = Word(iter('abcdefghijkl'))
sage: loads(dumps(w))
word: abcdefghijkl
sage: type(_)
<class 'sage.combinat.words.word.FiniteWord_list'>
}}}
This is more general solution to the problem solved in #7519.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/7619>
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