Message4899

I tried to run NLTK 0.99 on Jython 2.5 (final) expecting it to work
since nltk was compatible with cPython 2.5. I got the following errors
though (pointing to some missing zlib constants in Jython 2.5) .

>>> import nltk                                         
/home/raghavan/mystuff/nltk0.99/nltk-0.9.9/nltk/sem/__init__.py:24:
UserWarning:
nltk.sem.relextract and nltk.sem.chat80 modules not loaded (please
install sqlite3
library
  warnings.warn("nltk.sem.relextract and nltk.sem.chat80 modules not "
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/raghavan/mystuff/nltk0.99/nltk-0.9.9/nltk/__init__.py",
line 96, in
<module>
    import data
  File "/home/raghavan/mystuff/nltk0.99/nltk-0.9.9/nltk/data.py", line
44, in <module>
    from zlib import Z_SYNC_FLUSH
ImportError: cannot import name Z_SYNC_FLUSH

http://code.google.com/p/nltk/issues/detail?id=414&q=jython

Comments (from Frank Wierzbicki's Weblog -
https://www.blogger.com/comment.g?blogID=14276139&postID=1723495392311827770)


It looks like we are missing a few constants in zlib, I bet they are
either new since 2.2/2.3 and haven't been added or they are somehow
incompatible with Java's compression support (I'm not up on this stuff
at the moment)