About Python-chardet iso-8859-9-turkish file encoding test exception

[PCwangPY]

Use the chardet.detect(data) function to check the iso-8859-9-turkish file encoding

Test steps:

1. Write test code: chardet_test.py
         #!/usr/bin/python

      import sys
      import chardet

     path = str(sys.argv[1])
     f = open(path,'rb')
     data = f.read()
     s= chardet.detect(data)
     print(s)

2. Test run: ./chardet_test.py divxplanet.com.xml
3. Operation results:
        {'confidence': 0.73, 'language': '', 'encoding': 'ISO-8859-1'}
        The above result is obviously not "ISO-8859-9"

Desired result:
[root@localhost iso-8859-9-turkish]# ./chardet_test.py divxplanet.com.xml
{'confidence': 0.53159569353908, 'language': 'Turkish', 'encoding': 'ISO-8859-9'}

Through analysis: guess in the universaldetector.py file, judge the branch has objections

If we're checking non-CJK encodings, use single-byte prober

If self.lang_filter & LanguageFilter.NON_CJK:
self._charset_probers.append(SBCSGroupProber())
Self._charset_probers.append(Latin1Prober())
(The above 4 lines are the code)

I am not sure that it is caused by some reason, or it is a bug. Please give me a solution to this problem. Thank you