#10354: Remove deprecated word objects from the pickle jar
------------------------+---------------------------------------------------
Reporter: slabbe | Owner: slabbe
Type: defect | Status: new
Priority: major | Milestone: sage-4.6.1
Component: pickling | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
------------------------+---------------------------------------------------
The [http://code.google.com/p/sage-words/ sage-words google code] was
merged into sage-3.2.2 two years ago in December 2008 (#4653). At that
time, about a dozen of objects were added in the sage pickle jar using
that code.
Then, in January 2009, we realized that all of our work was not that good
and we started to change all the hierarchy of classes. Basically, we
decided after discussions that it was better to get the mathematical
classes independent of the chosen representation. This was achieved by
ticket #6519 merged in sage-4.1.1 during summer 2009.
Twist in the code were made to make the dozen of old word objects pickled
from version < 4.1.1 still usable. As written by Franco Saliola in #6519 :
{{{
this way, an old-style word can be unpickled, and during the unpickling,
it
gets converted to a new-style word, and the user is given a warning to re-
save
the word
[...]
This is a temporary fix: since the WordContent code is not necessary for
any
other part of Sage, it will be deleted in a few months. In the meantime,
if
there is anyone with some saved word objects, then unpickling will work.
}}}
Those deprecation warnings now exists since more than one year, so it's
now time to complete the cleaning. As I [http://groups.google.com/group
/sage-combinat-devel/browse_thread/thread/440ae08a74c35df7 wrote] on sage-
combinat devel mailing list in June 2010 :
{{{
I would like to remove those 6 pickled object from the pickle jar and
replace
them with the new generation of words that got in Sage during summer 2009.
This
way, it would really make sure that we do not break the pickle of objects
that
are really used. Also, this will allow us to then clean up the code a lot,
because some kind of arabesques are being done to support the old stuff...
I know William prefer to keep old objects in the pickle jar, but in this
case,
I would like to remove them.... Will put time on this when I have time...
}}}
Then, William answered in the same conversation :
{{{
I do prefer keeping old pickles (that's the point of the pickle jar), but
I
definitely don't want to get in the way of the sage-combinatorics group,
and
understand that your code is under very active development.
Thanks for the work you're doing on cleanup!
William
}}}
So let's do the cleanup now!
By the way, the current output of the unpickle testing (taken from
{{{sage/structure/sage_object.pyx}}}) is ugly and will be fixed by this
ticket :
{{{
sage: std = os.environ['SAGE_DATA'] +
'/extcode/pickle_jar/pickle_jar.tar.bz2'
sage: print "x"; sage.structure.sage_object.unpickle_all(std)
x
/Users/slabbe/Applications/sage-4.6/local/bin/sage-ipython:1:
DeprecationWarning: Your word object is saved in an old file format since
FiniteWord_over_OrderedAlphabet is deprecated and will be deleted in a
future
version of Sage (you can use FiniteWord_list instead). You can re-save
your
word by typing "word.save(filename)" to ensure that it will load in future
versions of Sage. #!/usr/bin/env python
/Users/slabbe/Applications/sage-4.6/local/bin/sage-ipython:1:
DeprecationWarning: Your word object is saved in an old file format since
AbstractWord is deprecated and will be deleted in a future version of Sage
(you
can use FiniteWord_list instead). You can re-save your word by typing
"word.save(filename)" to ensure that it will load in future versions of
Sage.
#!/usr/bin/env python
/Users/slabbe/Applications/sage-4.6/local/bin/sage-ipython:1:
DeprecationWarning: Your word object is saved in an old file format since
Word_over_Alphabet is deprecated and will be deleted in a future version
of
Sage (you can use FiniteWord_list instead). You can re-save your word by
typing
"word.save(filename)" to ensure that it will load in future versions of
Sage.
#!/usr/bin/env python
/Users/slabbe/Applications/sage-4.6/local/bin/sage-ipython:1:
DeprecationWarning: Your word object is saved in an old file format since
Word_over_OrderedAlphabet is deprecated and will be deleted in a future
version
of Sage (you can use FiniteWord_list instead). You can re-save your word
by
typing "word.save(filename)" to ensure that it will load in future
versions of
Sage. #!/usr/bin/env python
/Users/slabbe/Applications/sage-4.6/local/bin/sage-ipython:1:
DeprecationWarning: ChristoffelWord_Lower is deprecated, use
LowerChristoffelWord instead #!/usr/bin/env python
Successfully unpickled 586 objects.
Failed to unpickle 0 objects.
}}}
The goal of this ticket is to remove, update or add objects to the pickle
jar so that one can remove the deprecated file
{{{sage/combinat/words/utils.py}}} and
{{{sage/combinat/words/content.py}}}. I need more testing to do before
saying what to do on each object, but the following objects will be
certainly considered :
- {{{_class__sage_combinat_lyndon_word_LyndonWords_evaluation__.sobj}}}
- {{{_class__sage_combinat_lyndon_word_LyndonWords_nk__.sobj}}}
-
{{{_class__sage_combinat_lyndon_word_StandardBracketedLyndonWords_nk__.sobj}}}
- {{{_class__sage_combinat_subword_Subwords_w__.sobj}}}
- {{{_class__sage_combinat_subword_Subwords_wk__.sobj}}}
-
{{{_class__sage_combinat_words_alphabet_OrderedAlphabet_Finite__.sobj}}}
-
{{{_class__sage_combinat_words_alphabet_OrderedAlphabet_NaturalNumbers__.sobj}}}
-
{{{_class__sage_combinat_words_alphabet_OrderedAlphabet_PositiveIntegers__.sobj}}}
- {{{_class__sage_combinat_words_morphism_WordMorphism__.sobj}}}
-
{{{_class__sage_combinat_words_shuffle_product_ShuffleProduct_overlapping__.sobj}}}
-
{{{_class__sage_combinat_words_shuffle_product_ShuffleProduct_overlapping_r__.sobj}}}
-
{{{_class__sage_combinat_words_shuffle_product_ShuffleProduct_shifted__.sobj}}}
-
{{{_class__sage_combinat_words_shuffle_product_ShuffleProduct_w1w2__.sobj}}}
-
{{{_class__sage_combinat_words_suffix_trees_ImplicitSuffixTree__.sobj}}}
- {{{_class__sage_combinat_words_suffix_trees_SuffixTrie__.sobj}}}
- {{{_class__sage_combinat_words_utils_Factorization__.sobj}}}
- {{{_class__sage_combinat_words_word_AbstractWord__.sobj}}}
- {{{_class__sage_combinat_words_word_Word_over_Alphabet__.sobj}}}
- {{{_class__sage_combinat_words_word_Word_over_OrderedAlphabet__.sobj}}}
-
{{{_class__sage_combinat_words_word_content_WordContentFromFunction__.sobj}}}
-
{{{_class__sage_combinat_words_word_content_WordContentFromList__.sobj}}}
-
{{{_class__sage_combinat_words_word_generators_ChristoffelWord_Lower__.sobj}}}
- {{{_class__sage_combinat_words_word_generators_WordGenerator__.sobj}}}
-
{{{_class__sage_combinat_words_words_FiniteWords_length_k_over_OrderedAlphabet__.sobj}}}
-
{{{_class__sage_combinat_words_words_FiniteWords_over_OrderedAlphabet__.sobj}}}
-
{{{_class__sage_combinat_words_words_InfiniteWords_over_OrderedAlphabet__.sobj}}}
- {{{_class__sage_combinat_words_words_Words_n__.sobj}}}
- {{{_class__sage_combinat_words_words_Words_over_Alphabet__.sobj}}}
-
{{{_class__sage_combinat_words_words_Words_over_OrderedAlphabet__.sobj}}}
For references, a ticket where objects were removed/updated from the
pickle jar : #8911. The update was made by uploading the modified
{{{sage/data/extcode/pickle_jar.tar.bz2}}} directly on the trac ticket.
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10354>
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