我正在运行：
table = petl.fromcsv('file.txt', delimiter = ',' , encoding = 'utf-8)
petl.todb(table, connection, 'table')
我在插入步骤中收到此错误：
File "/usr/local/lib/python2.7/dist-packages/petl/util/base.py", line 28, in __len__
return sum(1 for _ in self)
File "/usr/local/lib/python2.7/dist-packages/petl/util/base.py", line 28, in <genexpr>
return sum(1 for _ in self)
File "/usr/local/lib/python2.7/dist-packages/petl/io/csv_py2.py", line 45, in __iter__
for row in reader:
File "/usr/local/lib/python2.7/dist-packages/petl/io/csv_py2.py", line 149, in next
row = self.reader.next()
_csv.Error: line contains NULL byte
我可以做些什么来解决这个问题？