Issue with python3.13

[AthinaGav]

Installed OMAmer via pip in a default conda environment and got this error:

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   _____ _____ _____
  |     |     |  _  |_____ ___ ___
  |  |  | | | |     |     | -_|  _|
  |_____|_|_|_|__|__|_|_|_|___|_|   v2.1.0

  OMAmer is licensed under the GNU Lesser General Public License 3.0 (LGPL-3.0).
    
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Loading required libraries 
Traceback (most recent call last):
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/bin/omamer", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/main.py", line 306, in main
    args.func(args)
    ~~~~~~~~~^^^^^^
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/_runners.py", line 153, in search
    from .database import Database
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/database.py", line 40, in <module>
    from .index import Index
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/index.py", line 31, in <module>
    from .merge_search import cumulate_counts_1fam
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/merge_search.py", line 43, in <module>
    from ._clock import clock, as_seconds
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/site-packages/omamer/_clock.py", line 28, in <module>
    clock = ctypes.pythonapi._PyTime_GetSystemClock
            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/ctypes/__init__.py", line 403, in __getattr__
    func = self.__getitem__(name)
  File "/work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/lib/python3.13/ctypes/__init__.py", line 408, in __getitem__
    func = self._FuncPtr((name_or_ordinal, self))
AttributeError: /work/FAC/FBM/DBC/cdessim2/default/agavriilidou/miniconda3/envs/omamer_experimental/bin/python3.13: undefined symbol: _PyTime_GetSystemClock

[sinamajidian]

It seems like "_PyTime_GetSystemClock" is removed in python 3.13 according to the doc https://docs.python.org/3/whatsnew/3.13.html
The alternative seems to be PyTime_Time() or PyTime_TimeRaw();

omamer/omamer/_clock.py

Line 28 in 2d6b9a0

clock = ctypes.pythonapi._PyTime_GetSystemClock