Problem running Python example

[Corey Thompson]

Hello!

I recently cloned https://github.com/opencog/link-grammar and ran through the install instructions.

However, when I attempt to run the python example, I am receiving the following error:

me@thepc:~/projects/link-grammar/bindings/python-examples$ ./example.py
Traceback (most recent call last):
  File "./example.py", line 8, in <module>
    import linkgrammar
  File "/usr/local/lib/python2.7/dist-packages/linkgrammar/__init__.py", line 6, in <module>
    from .linkgrammar import *
  File "/usr/local/lib/python2.7/dist-packages/linkgrammar/linkgrammar.py", line 8, in <module>
    import _clinkgrammar as clg
ImportError: /usr/local/lib/python2.7/dist-packages/linkgrammar/_clinkgrammar.so: undefined symbol: dictionary_get_lang

Am I missing a package or environment setting? Any pointers for where to look / how to fix are appreciated!

Corey

[Linas Vepstas]

Hi Corey,

I guess there are several things to check. make sure that
liblink-grammar.so can be found: e.g make sure that /usr/local/lib is
in ld.so.conf . Make sure you ran ldconfig after installing. You
can work around this by setting LD_LIBRARY_PATH Google will tell you
more about these. Mostly: did you remember to say "make install"
after compiling?

--linas

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[ami...@gmail.com]

Most probably "make install" will cause it to run.

Since I don't usually have LG installed in my system (I run several different versions at once,

for test, and installing it may cause a confusion), I run it with:

PYTHONPATH=$LG_SRCDIR/bindings/python:$LG_BINDIR/bindings/pythonr/.libs   python binding/python-examples/example.py

when LG_SRCDIR is the sources directory and LG_BINDIR is the binary directory.

If you compile LG in its source directory (the usual thing), you don't need the second component (after the colon).

However, when example.py actually runs, it prints this error:

TypeError: object of type 'generator' has no len()

This happens because it still uses the pre-5.3 python binding.

After I converted it to use the new (i.e. current)  binding, I found two problems:

1. A bug in the postscript function binding, which I fixed.

2. Using of len() is problematic in the current binding: Since the linkage is now an iterator,

there is now a need to compute all the linkages in order to find their number,

even though the library knows this number just after the parsing, before even calculating the first linkage.

This doesn't make too much sense.

It is not too easy to fix that when using iterators, but I have an idea how to define

Sentence.num_valid_linkages() which will be valid after calling to parse() and before starting to iterate the linkages.

I will send patches to fix all of that.

Amir

[ami...@gmail.com]

Hello Corey and Linas,

I have just sent the said patches.

See: https://github.com/opencog/link-grammar/pull/166

Amir

[Corey Thompson]

Thanks Linas and Amir!

Tomorrow morning I will double-check the make install and ldconfig steps first, then patch with Amir's PR and let you know how it goes.

Thanks so much for the quick responses!!

Corey

[Corey Thompson]

Hi guys.  After double-checking Linas' steps, and pulling Amir's changes, I am still having the same issue:

I also made sure to:

1. make sure that liblink-grammar.so can be found:  e.g make sure that /usr/local/lib is in ld.so.conf 

Yes, ld.so.conf points to the files in /etc/ld.so.conf.d, In there is libc.conf, which includes the /usr/local/lib path.

 

2. Make sure you ran ldconfig after installing.  

Did that.

3. You can work around this by setting LD_LIBRARY_PATH  Google will tell you more about these.

See below in the .bashrc text.

4. Mostly: did you remember to say "make install" after compiling?

Yes, and did make clean, make, make install after setting all of the paths.

Here is the error again:

>>> import linkgrammar 

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/usr/local/lib/python2.7/dist-packages/linkgrammar/__init__.py", line 6, in <module>

    from .linkgrammar import *

  File "/usr/local/lib/python2.7/dist-packages/linkgrammar/linkgrammar.py", line 8, in <module>

    import _clinkgrammar as clg

ImportError: /usr/local/lib/python2.7/dist-packages/linkgrammar/_clinkgrammar.so: undefined symbol: dictionary_get_lang

Notice that I can run link-parser directly:

ubuntu@ubuntu-pc:~/projects/link-grammar/link-parser$ ./link-parser 

link-grammar: Info: Dictionary found at ../data/en/4.0.dict

link-grammar: Info: Using locale en_US.UTF-8.

link-grammar: Info: Dictionary version 5.3.0.

link-grammar: Info: Library version link-grammar-5.3.0. Enter "!help" for help.

I am making sure the files can be found in the LD_LIBRARY_PATH.  from .bashrc:

export LG_LIB_PATH=/usr/local/lib:/usr/local/lib/python2.7/dist-packages/linkgrammar:/usr/local/lib/perl/5.18.2

export LD_LIBRARY_PATH=/usr/local/cuda-7.0/lib64:$LG_LIB_PATH:$LD_LIBRARY_PATH

export LD_RUN_PATH=$LG_LIB_PATH

Thoughts?

Thanks again!

Corey

On Wednesday, August 12, 2015 at 1:07:55 PM UTC-5, ami...@gmail.com wrote:

[Linas Vepstas]

On Tue, Aug 18, 2015 at 8:21 PM, Corey Thompson <cor...@gmail.com> wrote:
> /usr/local/lib/python2.7/dist-packages/linkgrammar/_clinkgrammar.so

Any chance you have a second copy of link-grammar installed, for
example, because you installed abiword, which uses an older version
for grammar checking?

You can do this:
ldd
/usr/local/lib/python2.7/dist-packages/linkgrammar/_clinkgrammar.so

which should print out liblink-grammar.so.5 =>
/usr/local/lib/liblink-grammar.so.5 and if it prints something else,
its a problem.

If above works, then another thing is to check

nm /usr/local/lib/liblink-grammar.so.5 |grep dictionary_get_lang

which should print an address, the letter T and dictionary_get_lang

--linas

[Linas Vepstas]

Yeah, has to be version 5 not version 4. Here: your ldd reports the problem:

liblink-grammar.so.4 => /usr/lib/liblink-grammar.so.4

The copy of version 4 in /usr/lib/ is hiding version 5 in /usr/local/lib

The copy in /usr/lib was installed by the base OS. I think you said
you are running ubuntu, right? Do this

dpkg -S /usr/lib/liblink-grammar.so.4 the -S means search and it
should print the name of the package that installed the file.
Uninstall that package, and things should work: apt-get purge <name
of package>

--linas

On Tue, Aug 18, 2015 at 8:34 PM, Corey Thompson <cor...@gmail.com> wrote:
>
>
> ubuntu@ubuntu-pc:/tmp$ ldd
> /usr/local/lib/python2.7/dist-packages/linkgrammar/_clinkgrammar.so
> linux-vdso.so.1 => (0x00007fffd0170000)
> libpython2.7.so.1.0 => /usr/lib/x86_64-linux-gnu/libpython2.7.so.1.0
> (0x00007f2f586a0000)
> liblink-grammar.so.4 => /usr/lib/liblink-grammar.so.4 (0x00007f2f58458000)
> libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6
> (0x00007f2f58150000)
> libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f2f57d88000)
> libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f2f57b70000)
> libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0
> (0x00007f2f57950000)
> libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f2f57730000)
> libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f2f57528000)
> libutil.so.1 => /lib/x86_64-linux-gnu/libutil.so.1 (0x00007f2f57320000)
> libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f2f57018000)
> libaspell.so.15 => /usr/lib/libaspell.so.15 (0x00007f2f56d50000)
> /lib64/ld-linux-x86-64.so.2 (0x00007f2f58e48000)
>
> ubuntu@ubuntu-pc:/tmp$ nm /usr/local/lib/liblink-grammar.so.5
> 0000000000017d60 t abridged_lookup_list
> 0000000000032e50 t add_alternative_with_subscr
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> 00000000002494c0 d afdict_classname
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> 00000000000225c0 t apply_must_form_a_cycle
> U aspell_config_replace
> U aspell_error_message
> U aspell_error_number
> U aspell_speller_check
> U aspell_speller_suggest
> U aspell_string_enumeration_next
> U aspell_word_list_elements
> U aspell_word_list_size
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> 0000000000022960 t bad_depth_first_search
> 00000000000119d0 t boolean_dictionary_lookup
> 0000000000017ae0 t boolean_lookup
> 0000000000249618 b __bss_start
> 0000000000249740 b buff.7363
> 0000000000249640 b buff.7381
> 0000000000009030 t build_clause
> 0000000000038ef0 t build_connector_set_from_expression
> 00000000000093f0 T build_disjuncts_for_exp
> 0000000000020550 t build_idiom_word_name
> 000000000001f680 t build_parse_set
> 00000000000097c0 t build_sentence_disjuncts
> 0000000000023710 t build_type_array
> 0000000000009610 t build_word_expressions
> 0000000000039ad0 t calculate_connector_hash
> U calloc@@GLIBC_2.2.5
> 000000000001ad90 T catenate_disjuncts
> 0000000000038e40 t catenate_X_nodes
> 000000000001a630 t check_db
> 0000000000007020 T check_link_size
> 0000000000249870 b clt
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> 000000000001add0 T count_disjuncts
> U __ctype_b_loc@@GLIBC_2.3
> U __ctype_get_mb_cur_max@@GLIBC_2.2.5
> 0000000000249550 d current_name
> 00000000002599a0 b custom_data_dir
> w __cxa_finalize@@GLIBC_2.2.5
> 000000000001a040 t db_close
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> 000000000001a320 t db_lookup_list
> 000000000001a220 t db_open
> 0000000000022b80 t d_depth_first_search
> 0000000000249580 d debug
> U delete_aspell_can_have_error
> U delete_aspell_config
> U delete_aspell_speller
> U delete_aspell_string_enumeration
> 0000000000010c10 t delete_unmarked_disjuncts
> 00000000000227f0 t depth_first_search
> 0000000000004da0 t deregister_tm_clones
> 0000000000031280 t determine_word_expressions.isra.12
> 00000000000199a0 T dict_display_word_expr
> 0000000000019890 T dict_display_word_info
> 0000000000014270 t dict_error2.constprop.13
> 00000000000364b0 t dict_file_open
> 0000000000011940 T dictionary_create_default_lang
> 000000000001a660 t dictionary_create_from_db
> 0000000000013040 t dictionary_create_from_file
> 0000000000013140 T dictionary_create_from_utf8
> 0000000000011900 T dictionary_create_lang
> 0000000000011a80 T dictionary_delete
> 0000000000036a80 T dictionary_get_data_dir
> 0000000000011990 T dictionary_get_lang
> 00000000000119b0 T dictionary_lookup_list
> 0000000000014de0 t dictionary_lookup_wild.isra.3
> 0000000000036a50 T dictionary_set_data_dir
> 0000000000012580 t dictionary_six
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> 0000000000036c90 t dictopen
> 00000000000131a0 t dict_order_bare
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> 000000000001b7e0 t disjunct_word_print
> 0000000000017c40 t display_word_expr
> 0000000000017b00 t display_word_info
> 000000000000ffe0 t do_count
> 0000000000004e10 t __do_global_dtors_aux
> 0000000000248d90 t __do_global_dtors_aux_fini_array_entry
> 00000000000223e0 t domain_compare
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> 0000000000010a20 t do_parse
> 0000000000023d40 T do_post_process
> 0000000000036620 t downcase_utf8_str
> 00000000002494a0 d __dso_handle
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> 0000000000248da0 d _DYNAMIC
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> 00000000002495a0 d e.5891
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> 000000000001adf0 T eliminate_duplicate_disjuncts
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> 00000000002599b0 b _end
> 000000000001c140 t err_msg
> U __errno_location@@GLIBC_2.2.5
> 00000000000368f0 T exalloc
> 00000000000239d0 t exfree_domain_names
> 000000000001a2d0 t exists_cb
> U exit@@GLIBC_2.2.5
> 000000000001a530 t exp_cb
> 00000000000376c0 t exp_compare
> 0000000000037d70 t exp_contains
> 00000000000181b0 t Exp_create
> 0000000000038030 t exp_has_connector.isra.2
> 000000000002da40 t expression_prune
> 0000000000009930 t exprint_constituent_structure.isra.7
> 00000000000086e0 t extract_connectors
> 000000000001f770 t extract_links
> 0000000000259970 b fallback_data
> 0000000000259980 b fallback_func
> U fclose@@GLIBC_2.2.5
> 000000000001c2f0 t feature_enabled
> U feof@@GLIBC_2.2.5
> U ferror@@GLIBC_2.2.5
> U fflush@@GLIBC_2.2.5
> U fgetc@@GLIBC_2.2.5
> U fgets@@GLIBC_2.2.5
> 0000000000036ca0 t file_exists
> U fileno@@GLIBC_2.2.5
> 00000000000370b0 t find_real_unsplit_word
> 000000000000fd20 t find_table_pointer
> 00000000000119e0 t find_word_in_dict
> 0000000000039b50 t _fini
> 0000000000035a90 t flatten_wordgraph
> U fmaxf@@GLIBC_2.2.5
> U fopen@@GLIBC_2.2.5
> 000000000001fd90 t form_match_list
> U __fprintf_chk@@GLIBC_2.3.4
> 0000000000004e50 t frame_dummy
> 0000000000248d88 t __frame_dummy_init_array_entry
> 0000000000048be8 r __FRAME_END__
> U fread@@GLIBC_2.2.5
> 00000000000058b0 t free_anysplit
> 0000000000038e80 T free_connectors
> 0000000000010d50 t free_count_context
> 0000000000011160 t free_dict_node_recursive
> 000000000001ad40 T free_disjuncts
> 0000000000038ab0 t free_E_list
> 0000000000038ae0 t free_Exp
> 0000000000011a20 t free_Exp_list
> 000000000001f7e0 t free_fast_matcher
> U free@@GLIBC_2.2.5
> 0000000000006690 t free_linkages
> 0000000000011bf0 t free_llist
> 0000000000017a00 t free_lookup
> 00000000000119c0 T free_lookup_list
> 000000000001f5c0 t free_parse_info
> 0000000000030030 t free_regexs
> 0000000000019fd0 t free_Word_file
> 0000000000038e00 t free_X_nodes
> 0000000000040c47 r __func__.5981
> 000000000003b9c0 r __func__.6112
> 0000000000039e73 r __func__.6130
> 000000000003b3ed r __func__.6146
> 00000000000422a0 r __func__.6155
> 0000000000039e82 r __func__.6199
> 000000000003c3a0 r __func__.6210
> 00000000000422c0 r __func__.6216
> 0000000000042286 r __func__.6275
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> 0000000000040a00 r __func__.6399
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> 00000000000409d8 r __func__.6479
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> 00000000000409a0 r __func__.6495
> 000000000004223a r __func__.6518
> 000000000004226d r __func__.6571
> 0000000000042261 r __func__.6611
> 0000000000042250 r __func__.6631
> 0000000000042202 r __func__.6643
> 0000000000042278 r __func__.6682
> 00000000000421d0 r __func__.6760
> 00000000000421f0 r __func__.6804
> 000000000003a520 r __func__.7567
> 000000000003a540 r __func__.7722
> U fwrite@@GLIBC_2.2.5
> U __fxstat@@GLIBC_2.2.5
> 000000000000a570 t gen_comp.constprop.19
> 0000000000020250 t generate_id_connector.isra.0
> 0000000000036de0 t get_default_locale
> 0000000000011d80 t get_dict_affixes
> U getenv@@GLIBC_2.2.5
> 0000000000036d00 t get_file_contents
> 00000000000368b0 t get_max_space_used
> U getrusage@@GLIBC_2.2.5
> 00000000000368a0 t get_space_in_use
> 0000000000249000 d _GLOBAL_OFFSET_TABLE_
> 0000000000249840 b global_rand_state
> w __gmon_start__
> 0000000000037020 t gwordlist_append
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> 0000000000036f50 t gword_new
> 0000000000004d3d t gwordqueue_add.isra.4.part.5
> 0000000000037540 t gword_status
> 00000000000042c0 t _init
> 0000000000039660 T init_connector
> 0000000000036890 t init_memusage
> 0000000000037240 t in_same_alternative
> 000000000002bef0 t insert_connectors.isra.6.constprop.13
> 000000000002b710 t insert_connectors.isra.6.constprop.14
> 0000000000018f70 t insert_dict
> 00000000000206b0 t insert_idiom
> 00000000000191c0 t insert_list
> 0000000000031b00 t is_capitalizable.isra.9
> 0000000000020d20 t is_idiom_word
> 0000000000011890 t is_stem
> 0000000000033700 t issue_dictcap
> 0000000000033850 t issue_r_stripped.constprop.14
> 0000000000031c80 t issue_word_alternative
> 0000000000011840 t is_suffix
> U iswalpha@@GLIBC_2.2.5
> U iswdigit@@GLIBC_2.2.5
> U iswspace@@GLIBC_2.2.5
> U iswupper@@GLIBC_2.2.5
> w _ITM_deregisterTMCloneTable
> w _ITM_registerTMCloneTable
> 0000000000248d98 d __JCR_END__
> 0000000000248d98 d __JCR_LIST__
> 0000000000020db0 t join_null_word.isra.1
> 00000000000369e0 t join_path
> w _Jv_RegisterClasses
> 0000000000028dc0 t left_append_string
> 000000000002b3c0 t left_connector_list_update
> 0000000000036580 T left_print_string
> 00000000000278b0 t lg_br_extract_dir
> 00000000000279d0 t lg_br_extract_prefix
> 0000000000027b90 t lg_br_set_locate_fallback_func
> 0000000000027810 t lg_br_strcat
> 000000000001be40 T lg_compute_disjunct_strings
> 000000000001c3f0 T lg_expand_disjunct_list
> 0000000000036510 T lg_strlcpy
> 0000000000013c00 t link_advance
> 0000000000022340 T linkage_corpus_cost
> 0000000000022000 T linkage_create
> 0000000000022070 T linkage_delete
> 0000000000022300 T linkage_disjunct_cost
> 0000000000009d60 t linkage_free_constituent_tree
> 000000000000fd10 T linkage_free_constituent_tree_str
> 0000000000029530 T linkage_free_diagram
> 0000000000029540 T linkage_free_disjuncts
> 0000000000029550 T linkage_free_links_and_domains
> 0000000000029d90 T linkage_free_postscript
> 0000000000023a00 t linkage_free_pp_info
> 0000000000029dd0 T linkage_free_pp_msgs
> 0000000000029560 T linkage_free_senses
> 0000000000022290 T linkage_get_disjunct_corpus_score
> 0000000000022260 T linkage_get_disjunct_cost
> 00000000000221f0 T linkage_get_disjunct_str
> 00000000000239a0 T linkage_get_link_domain_names
> 0000000000022150 T linkage_get_link_label
> 00000000000220c0 T linkage_get_link_length
> 0000000000022180 T linkage_get_link_llabel
> 00000000000220f0 T linkage_get_link_lword
> 0000000000023970 T linkage_get_link_num_domains
> 00000000000221b0 T linkage_get_link_rlabel
> 0000000000022120 T linkage_get_link_rword
> 00000000000220a0 T linkage_get_num_links
> 0000000000022080 T linkage_get_num_words
> 00000000000239c0 T linkage_get_violation_name
> 00000000000222c0 T linkage_get_word
> 00000000000221e0 T linkage_get_words
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> 00000000000222e0 T linkage_unused_word_cost
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> 000000000001c510 t list_links
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> U malloc@@GLIBC_2.2.5
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> 0000000000039770 T match_in_connector_set
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> U memcpy@@GLIBC_2.14
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> 0000000000006e90 T parse_options_get_short_length
> 0000000000006e70 T parse_options_get_spell_guess
> 0000000000006d70 T parse_options_get_test
> 0000000000006f30 T parse_options_get_use_cluster_disjuncts
> 0000000000006d90 T parse_options_get_use_sat_parser
> 0000000000006db0 T parse_options_get_use_viterbi
> 0000000000006bf0 T parse_options_get_verbosity
> 0000000000006f70 T parse_options_memory_exhausted
> 0000000000030350 T parse_options_print_total_time
> 0000000000006f90 T parse_options_reset_resources
> 0000000000006f80 T parse_options_resources_exhausted
> 0000000000006ea0 T parse_options_set_all_short_connectors
> 0000000000006b80 T parse_options_set_cost_model_type
> 0000000000006c00 T parse_options_set_debug
> 0000000000006de0 T parse_options_set_disjunct_cost
> 0000000000006f50 T parse_options_set_display_morphology
> 0000000000006e40 T parse_options_set_islands_ok
> 0000000000006dc0 T parse_options_set_linkage_limit
> 0000000000006f00 T parse_options_set_max_memory
> 0000000000006e20 T parse_options_set_max_null_count
> 0000000000006ee0 T parse_options_set_max_parse_time
> 0000000000006e00 T parse_options_set_min_null_count
> 0000000000006ec0 T parse_options_set_repeatable_rand
> 0000000000006e80 T parse_options_set_short_length
> 0000000000006e60 T parse_options_set_spell_guess
> 0000000000006cc0 T parse_options_set_test
> 0000000000006f20 T parse_options_set_use_cluster_disjuncts
> 0000000000006d80 T parse_options_set_use_sat_parser
> 0000000000006da0 T parse_options_set_use_viterbi
> 0000000000006be0 T parse_options_set_verbosity
> 0000000000006f60 T parse_options_timer_expired
> 000000000000a390 t parse_string
> 0000000000006fa0 T partial_init_linkage
> 00000000000118c0 t patch_subscript
> 0000000000259990 b path_found.7087
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> 0000000000024de0 T post_process_open
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> 000000000002dfc0 t power_prune
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> 00000000000235b0 t pp_free_domain_array
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> 00000000000250e0 t pp_knowledge_open
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> 0000000000025de0 t pp_lexer__delete_buffer
> 0000000000025e40 t pp_lexer__flush_buffer
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> 0000000000027280 t pp_lexer_get_next_token_of_label
> 00000000002598f0 b pp_lexer_in
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> 0000000000259930 b pp_lexer_leng
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> 0000000000027540 t pp_linkset_add
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> 0000000000027440 t pp_linkset_open
> 00000000000277f0 t pp_linkset_population
> 0000000000023a60 t pp_new_domain_array
> 0000000000027ba0 t prepare_to_parse
> 000000000003db70 r __PRETTY_FUNCTION__.3581
> 000000000003db50 r __PRETTY_FUNCTION__.3597
> 000000000002aa30 t print_chosen_disjuncts_words
> 0000000000009870 t print_constituent.isra.0.part.1
> 0000000000019380 T print_dictionary_data
> 0000000000029de0 t print_disjunct_counts
> 0000000000011bb0 T print_expression
> 0000000000010dd0 t print_expression_parens
> 0000000000029e60 t print_expression_sizes
> U __printf_chk@@GLIBC_2.3.4
> 000000000000e3d0 t print_flat_constituents
> 000000000002a7c0 t print_lwg_path
> 000000000001b260 T print_one_disjunct
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> 000000000002a760 t print_with_subscript_dot
> 000000000002a8b0 t print_wordgraph_pathpos
> 000000000001a880 t prt_con
> 000000000001c1d0 T prt_error
> 0000000000013340 t prune_lookup_list
> 000000000001f7b0 t put_match_list
> U qsort@@GLIBC_2.2.5
> U rand_r@@GLIBC_2.2.5
> 00000000000137c0 t rdictionary_lookup
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> 00000000000223f0 t reachable_without_dfs
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> 0000000000024e30 t read_contains_rules.isra.1
> 00000000000193e0 t read_dictionary
> 0000000000019ab0 t read_regex_file
> 0000000000019e00 t read_word_file
> U realloc@@GLIBC_2.2.5
> 000000000001c430 t record_choice.constprop.10
> U regcomp@@GLIBC_2.2.5
> U regerror@@GLIBC_2.2.5
> U regexec@@GLIBC_2.3.4
> 0000000000030080 T regex_tokenizer_test
> U regfree@@GLIBC_2.2.5
> 0000000000004dd0 t register_tm_clones
> 0000000000020f50 t remap_linkages
> 00000000000068e0 t remove_empty_words
> 0000000000022dc0 t report_pp_stats.isra.2.part.3
> 0000000000030090 t resources_create
> 0000000000030110 t resources_delete
> 0000000000030250 t resources_exhausted
> 0000000000030210 t resources_memory_exhausted
> 0000000000030120 t resources_reset
> 0000000000030180 t resources_reset_space
> 0000000000030190 t resources_timer_expired
> 00000000000181d0 t restricted_expression
> 0000000000011be0 t return_true
> 000000000001b8d0 t reversed_conlist_str
> 000000000002b050 t right_connector_list_update
> 00000000000134b0 t rprint_dictionary_data
> 0000000000036550 t safe_strcat
> 00000000000364e0 t safe_strcpy
> 00000000000364c0 t safe_strdup
> 0000000000007490 T sane_linkage_morphism
> U sat_create_linkage
> U sat_parse
> U sat_sentence_delete
> 0000000000007060 T sentence_create
> 00000000000071f0 T sentence_delete
> 0000000000007420 T sentence_disjunct_cost
> 0000000000036330 t sentence_in_dictionary
> 0000000000007340 T sentence_length
> 0000000000007450 T sentence_link_cost
> 0000000000007360 T sentence_null_count
> 0000000000007380 T sentence_num_linkages_found
> 00000000000073c0 T sentence_num_linkages_post_processed
> 00000000000073a0 T sentence_num_valid_linkages
> 00000000000073e0 T sentence_num_violations
> 0000000000007cf0 T sentence_parse
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> 0000000000035600 t separate_sentence
> 0000000000033a50 t separate_word
> 0000000000027e50 t set_centers
> 000000000002ae50 t set_dist_fields.constprop.15
> 000000000002af50 t set_dist_fields.constprop.16
> U setlocale@@GLIBC_2.2.5
> 0000000000004cf0 t setup_domain_array.part.9
> 0000000000038b00 t size_of_expression
> U __snprintf_chk@@GLIBC_2.3.4
> 0000000000030570 t spellcheck_create
> 00000000000306e0 t spellcheck_destroy
> 0000000000030840 t spellcheck_free_suggest
> 0000000000030750 t spellcheck_suggest
> 0000000000030710 t spellcheck_test
> 0000000000005060 t split_and_cache
> 0000000000005640 t split_and_cache.constprop.1
> U sqlite3_close
> U sqlite3_errmsg
> U sqlite3_exec
> U sqlite3_open
> U __stack_chk_fail@@GLIBC_2.4
> U stderr@@GLIBC_2.2.5
> U stdin@@GLIBC_2.2.5
> U stdout@@GLIBC_2.2.5
> U strcat@@GLIBC_2.2.5
> U strchr@@GLIBC_2.2.5
> U strcmp@@GLIBC_2.2.5
> U __strcpy_chk@@GLIBC_2.3.4
> U strcpy@@GLIBC_2.2.5
> U __strdup@@GLIBC_2.2.5
> U strerror@@GLIBC_2.2.5
> 000000000002abe0 t string_copy
> 000000000002abb0 t string_delete
> 000000000002ab70 t string_new
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> 0000000000030e00 t strip_right.isra.6
> U strlen@@GLIBC_2.2.5
> U __strncat_chk@@GLIBC_2.3.4
> U strncat@@GLIBC_2.2.5
> U strncmp@@GLIBC_2.2.5
> U __strncpy_chk@@GLIBC_2.3.4
> U strncpy@@GLIBC_2.2.5
> U __strndup@@GLIBC_2.2.5
> U strpbrk@@GLIBC_2.2.5
> U strrchr@@GLIBC_2.2.5
> U strspn@@GLIBC_2.2.5
> U strstr@@GLIBC_2.2.5
> U strtod@@GLIBC_2.2.5
> U strtol@@GLIBC_2.2.5
> 0000000000013450 t subscr_match.isra.2
> 0000000000033140 t suffix_split
> 000000000000ffb0 t table_lookup
> 0000000000249578 d test
> 0000000000249618 d __TMC_END__
> U to_aspell_speller
> U towlower@@GLIBC_2.2.5
> U towupper@@GLIBC_2.2.5
> 0000000000249850 b uc.6049
> 0000000000036750 t upcase_utf8_str
> 0000000000006a50 t VDAL_compare_parse
> 00000000002599a8 b verbosity
> 000000000001bf50 t verr_msg
> U __vfprintf_chk@@GLIBC_2.3.4
> U __vsnprintf_chk@@GLIBC_2.3.4
> U wcrtomb@@GLIBC_2.2.5
> U wcschr@@GLIBC_2.2.5
> 0000000000004d6b t wctomb_check.part.0
> 0000000000039a30 t word_contains
> 00000000000370e0 t wordgraph_hier_position
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> 00000000000376b0 t wordgraph_show
> 00000000000398f0 t word_has_connector
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> 0000000000039a10 t word_only_connector
> 000000000001b790 t word_record_in_disjunct
> 00000000000368c0 T xalloc
> 000000000003da00 r yy_accept
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> 0000000000025d20 t yy_fatal_error
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> 0000000000259910 b yy_start
> 00000000002498c0 b yy_state_buf
> 00000000002498a0 b yy_state_ptr

[Corey Thompson]

Linas,

Thanks for the detective work.  I appreciate it so much.  My remedy:

$ sudo apt-get remove pylink

$ sudo apt-get remove liblink-grammar4-dev

$ sudo apt-get remove liblink-grammar4

$ sudo apt-get autoremove

Now things are working:

ubuntu@ubuntu-pc:~/projects/link-grammar/bindings/python-examples$ ./example.py 

link-grammar: Info: Dictionary found at /usr/local/share/link-grammar/en/4.0.dict

English: Found 4 linkages (4 had no P.P. violations)

[munch] 

Corey

On Tuesday, August 18, 2015 at 8:29:05 PM UTC-5, Linas Vepstas wrote: