>>> import tablib
>>> sb = 'id,name,author_email\r1,Some book,[email protected]\r'
>>> tablib.import_set(sb, format='csv')
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "/home/matthew/.virtualenvs/django-import-export/lib/python3.9/site-packages/tablib/core.py", line 908, in import_set
    return Dataset().load(normalize_input(stream), format, **kwargs)
  File "/home/matthew/.virtualenvs/django-import-export/lib/python3.9/site-packages/tablib/core.py", line 414, in load
    fmt.import_set(self, stream, **kwargs)
  File "/home/matthew/.virtualenvs/django-import-export/lib/python3.9/site-packages/tablib/formats/_csv.py", line 44, in import_set
    for i, row in enumerate(rows):
_csv.Error: new-line character seen in unquoted field - do you need to open the file in universal-newline mode?

def normalize_input(stream):
    """
    Accept either a str/bytes stream or a file-like object and always return a
    file-like object.
    """
    if isinstance(stream, str):
        return StringIO(stream, newline='')
    elif isinstance(stream, bytes):
        return BytesIO(stream)
    return stream