On debian testing, python 3.8.3rc1, version parsing fails.

[bdauvergne]

I get the following trace on any use of the library (using latest version from pypi)

tabularfile/csv.py:44: in __init__
    self.encoding = charset_normalizer.detect(header).get('encoding')
/tmp/tox-bdauvergne/tabularfile/py3-charsetnormalizer/lib/python3.8/site-packages/charset_normalizer/legacy.py:20: in detect
    r = CnM.from_bytes(byte_str).best().first()
/tmp/tox-bdauvergne/tabularfile/py3-charsetnormalizer/lib/python3.8/site-packages/charset_normalizer/normalizer.py:395: in from_bytes
    py_v = [int(el) for el in python_version_tuple()]
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _

.0 = <tuple_iterator object at 0x7f51145cc8e0>

>   py_v = [int(el) for el in python_version_tuple()]
E   ValueError: invalid literal for int() with base 10: '3rc1'

Maybe you could simply use sys.version_info ?