python csv2libsvm.py: AttributeError: '_csv.reader' 对象没有属性 'next'
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python csv2libsvm.py: AttributeError: '_csv.reader' object has no attribute 'next'
提问by Zoya
I want to convert a csv file into sparse format file with csv2libsvm.py (https://github.com/zygmuntz/phraug/blob/master/csv2libsvm.py).
我想使用 csv2libsvm.py ( https://github.com/zygmuntz/phraug/blob/master/csv2libsvm.py)将 csv 文件转换为稀疏格式文件。
The CSV file contains 37 attributes + the label (last column). it doesn't contain header or index. Exp of the 1st row: 63651000000.0,63651000000.0,153.1,0,0,0,0,0,0,5,1,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1
CSV 文件包含 37 个属性 + 标签（最后一列）。它不包含标题或索引。第一行的 Exp: 63651000000.0,63651000000.0,153.1,0,0,0,0,0,0,5,1,0,4,0,0,0,0,0,0,0,0,0, 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1
When entring the following command line : python csv2libsvm.py Z.csv data.txt 38 1
输入以下命令行时： python csv2libsvm.py Z.csv data.txt 38 1
I got the following error:
我收到以下错误：
Traceback (most recent call last):
File "csv2libsvm.py", line 47, in <module>
headers = reader.next()
AttributeError: '_csv.reader' object has no attribute 'next'
Do you have any idea about the problem ?
你对这个问题有什么想法吗？
回答by Hossein
This is because of the differences between python 2 and python 3. Use the built-in function nextin python 3. That is, write next(reader)instead of reader.next()in line 47. In addition, you should open the file in the text mode. So, change line 47 as i = open( input_file, 'r' ).
这是因为python 2和python 3的不同。使用python 3中的内置函数next。即写next(reader)而不是reader.next()在第47行。另外，您应该以文本模式打开文件。因此，将第 47 行更改为i = open( input_file, 'r' )。
回答by Solution Spirit
For Python 3.x:
对于 Python 3.x：
Use next(reader)instead of reader.next()
使用next(reader)代替reader.next()
