如何将.tsv转换为.csv? [英] How do I convert a .tsv to .csv?

问题描述

尝试将.tsv转换为.csv.这个:

Trying to convert a .tsv to a .csv. This:

import csv

# read tab-delimited file
with open('DataS1_interactome.tsv','rb') as fin:
    cr = csv.reader(fin, delimiter='\t')
    filecontents = [line for line in cr]

# write comma-delimited file (comma is the default delimiter)
with open('interactome.csv','wb') as fou:
    cw = csv.writer(fou, quotechar='', quoting=csv.QUOTE_NONE)
    cw.writerows(filecontents)

给我这个错误:

  File "tsv2csv.py", line 11, in <module>
    cw.writerows(filecontents)
_csv.Error: need to escape, but no escapechar set

推荐答案

在尝试写入CSV文件时，它遇到一个令牌，该令牌必须在其中插入转义字符.但是，您尚未定义一个.

While attempting to write to the CSV file, it encounters a token where it has to insert an escape character. However, you have not defined one.

Dialect.escapechar

作者使用的一个单字符字符串进行转义 如果引用设置为QUOTE_NONE，则分隔符；如果quote设置为quote，则为quotechar 双引号是False.阅读时，escapechar删除所有特殊内容 含义来自以下字符.默认为无，即 禁用转义.

A one-character string used by the writer to escape the delimiter if quoting is set to QUOTE_NONE and the quotechar if doublequote is False. On reading, the escapechar removes any special meaning from the following character. It defaults to None, which disables escaping.

来源: https://docs.python.org/2/library/csv.html#csv.Dialect.escapechar

示例代码:

# write comma-delimited file (comma is the default delimiter)
with open('interactome.csv','wb') as fou:
    cw = csv.writer(fou, quotechar='', quoting=csv.QUOTE_NONE, escapechar='\\')
    cw.writerows(filecontents)

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