rows schema format csv not working

[rhenanbartels]

rows schema --samples 20000 data/output/prestacaoconta-receitas.csv --format csv 
schemas/prestacao_contas_receitas.csv

Traceback (most recent call last):
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/bin/rows", line 10, in <module>
    sys.exit(cli())
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/click/core.py", line 764, in __call__
    return self.main(*args, **kwargs)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/click/core.py", line 717, in main
    rv = self.invoke(ctx)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/click/core.py", line 1137, in invoke
    return _process_result(sub_ctx.command.invoke(sub_ctx))
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/click/core.py", line 956, in invoke
    return ctx.invoke(self.callback, **ctx.params)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/click/core.py", line 555, in invoke
    return callback(*args, **kwargs)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/rows/cli.py", line 630, in schema
    generate_schema(table, export_fields, output_format, output)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/rows/utils.py", line 968, in generate_schema
    plugins.csv.export_to_csv(table, output_fobj)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/rows/plugins/plugin_csv.py", line 170, in export_to_csv
    writer.writerows(batch)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/unicodecsv/py3.py", line 31, in writerows
    return self.writer.writerows(rows)
  File "/home/rhenanbartels/virtualenvs/eleicoes-brasil/lib/python3.7/site-packages/unicodecsv/py3.py", line 15, in write
    return self.binary.write(string.encode(self.encoding, self.errors))
TypeError: write() argument must be str, not bytes