math domain error

[Jacobsonradical]

I encountered this error:

Traceback (most recent call last):
File "/home/rabbitlord/.pyenv/versions/3.11.9/lib/python3.11/threading.py", line 1045, in _bootstrap_inner
self.run()
File "/home/rabbitlord/.pyenv/versions/3.11.9/lib/python3.11/threading.py", line 982, in run
self._target(*self._args, **self._kwargs)
File "/home/rabbitlord/Project/gpt-detector/exp/exp2/2text_analysis/scripts/taaled/TAALED_1_4_1.py", line 699, in main
indexer(header_list, index_list, "simple_ttr_aw", ttr(lemma_text_aw)[0])
^^^^^^^^^^^^^^^^^^
File "/home/rabbitlord/Project/gpt-detector/exp/exp2/2text_analysis/scripts/taaled/TAALED_1_4_1.py", line 433, in ttr
log_ttr = safe_divide(math.log10(ntypes), math.log10(ntokens))
^^^^^^^^^^^^^^^^^^
ValueError: math domain error

I don't know how to add an exception here because to me, if ntypes == 0, then ntokens == 0 must also be true.