Hi there!

I am working on a project that uses foma in Python, and saw you had created this library with the code from foma's own Github, and wanted to ask about an error I am encountering with both (considering the issues on the actual repo are rarely answered).

When using foma in my Python code, either after installing this package or using the file given in foma's repo, I find that I get:

  File "/root/reconstruct/reconstruct.py", line 2, in <module>
    from foma import FST
  File "/usr/local/lib/python3.9/dist-packages/foma/__init__.py", line 111, in <module>
    foma_add_defined_function = foma.add_defined_function
  File "/usr/lib/python3.9/ctypes/__init__.py", line 387, in __getattr__
    func = self.__getitem__(name)
  File "/usr/lib/python3.9/ctypes/__init__.py", line 392, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /lib/x86_64-linux-gnu/libfoma.so.0: undefined symbol: add_defined_function

I have installed libfoma0 and libfoma0-dev and I can see that the Python code is clearly finding the shared object, however when I run objdump -TC libfoma.so.0 | grep defined, it is clear that there is no add_defined_function exposed as a method:

0000000000006130 g    DF .text  00000000000000c8  Base        add_defined
00000000000141f0 g    DF .text  00000000000000d9  Base        load_defined
0000000000013dc0 g    DF .text  00000000000000b8  Base        save_defined
0000000000005eb0 g    DF .text  000000000000000f  Base        defined_networks_init
0000000000005ec0 g    DF .text  000000000000000f  Base        defined_functions_init

I have found that a solution to have this work is to just comment out lines 111 and 112, along with the function definef of your __init__.py / foma.py as I am not currently using this in my program. I was wondering whether you have gotten this to work without the error, and if so how? Is it possible I am somehow on a wrong version of libfoma? Thank you for any help!

@GooDeeJAY We might very well be like the only people using this package lol. I have a question for you. We have forked the mhulden foma project with its python binding file in there. However, you have control over the pip package. For us, the get_defined_function functionality doesn't work as it can't find the symbol in the foma library .so, but also we're looking to add functionality to this overtime. Not sure how best to maintain this. We were planning on making PRs into the main foma project, but we were under the false impression that Mans was maintaining the pip package. Just wondering what you're thinking as it may impact how we go forward.