ValueError: bad delimiter value in CM.to_csv

[russibc]

Problem Description:

When running the following command:

algpred2 -i input_test.fa

input_test.fa content:

>test1
HIPSLEKPLQQQPLPLQQILWYQQQQPIQQQPQPFPQQPPCSQQQQPPLSQQQQPPFSQQQPPFSQQQQPILPQQPPFSQQQQQFPQQQQPLLPQQPPFSQQQPPFSQQQQQPPFSQQQQQPILLQQPPFSQHQQPVLPQQQIPSVQPSILQQLNPCKVFLQQQCSPVAMPQSLARSQMLWQSSCHVMQQQCCRQLPQIPEQSRYDAIRAIIYSIVLQEQQHGQGLNQPQQQQPQQSVQGVSQPQQQQKQLGQCSFQQPQQ
>test2
MAVPQNRVTRSRRNMRRAHDALVAANPASCPNCGELKRPHHVCGACGHYDDREVVAQAAEVDLDDDAA
>test3
TPTGQIHWGNLSKIGVVGIGSASYKVMTRSSHQSLVIKLMPNITLLNNATRVEIAEYRRLLRTVLEPIRDALNAMTQNIRPVQSV
>test4
MGVFNYEVETPSVISAARLFKSYVLDGDKLIPKVAPQAITSVENVGGNGGPGTIKNITFGEGSRYKYVKERVDEVDNTNFKYSYTVIEGDVLGDKLEKVCSELKIVAAPGGGSTLKISSKFHAKGDHEINAEEMKGAKEMAEKLLRAVETYLLAHSAEYN
>test5
MKLLILALTCAAAVWARPGETYSDKYDTIDVNEVLQSERLLKGYVECLLDKGRCTPDGKELKDTLPDALEHECSKCTEKQKSGADTVIRHLVNKRPELWKELAVKYDPENIYQERYKDRLESVKEH

The program crashes with the following traceback:

##############################################################################
# The program AlgPred2.0 is developed for predicting allergenic and non allergenic #
# protein from their primary sequence, developed by Prof G. P. S. Raghava's group. #
# ############################################################################
Summary of Parameters:
Input File:  input_test.fa ; Model:  1 ; Threshold:  0.3
Output File:  outfile.csv ; Display:  1
Traceback (most recent call last):
  File "<frozen runpy>", line 198, in _run_module_as_main
  File "<frozen runpy>", line 88, in _run_code
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Scripts\algpred2.exe\__main__.py", line 7, in <module>
    sys.exit(main())
             ~~~~^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Lib\site-packages\algpred2\python_scripts\algpred2.py", line 299, in main
    CM.to_csv("Sequence_1",header=False,index=None,sep="\n")
    ~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Lib\site-packages\pandas\util\_decorators.py", line 333, in wrapper
    return func(*args, **kwargs)
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Lib\site-packages\pandas\core\generic.py", line 3967, in to_csv
    return DataFrameRenderer(formatter).to_csv(
           ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^
        path_or_buf,
        ^^^^^^^^^^^^
    ...<14 lines>...
        storage_options=storage_options,
        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Lib\site-packages\pandas\io\formats\format.py", line 1014, in to_csv
    csv_formatter.save()
    ~~~~~~~~~~~~~~~~~~^^
  File "C:\Users\User\AppData\Local\Programs\Python\Python313\Lib\site-packages\pandas\io\formats\csvs.py", line 260, in save
    self.writer = csvlib.writer(
                  ~~~~~~~~~~~~~^
        handles.handle,
        ^^^^^^^^^^^^^^^
    ...<5 lines>...
        quotechar=self.quotechar,
        ^^^^^^^^^^^^^^^^^^^^^^^^^
    )
    ^
ValueError: bad delimiter value