Python - 如何读取/解析csv之类的行？

Question

我做了一些搜索,但大多数答案是关于阅读一个完整的csv文件,这些都不是我面临的问题.

我正在尝试使用urllib2从net读取文件:

request = urllib2.Request('http://.../tv.txt')
response = urllib2.urlopen(request)
lines = response.readlines()
for line in lines:
    ...

"line"格式如下所示:

"ABC", "XYZ,MNO", "KLM"
"ABC", "MN"
"ABC", "123", "10", "OPPA GANGNAM STYLE", "LADY"

如上所示,这些线实际上不是CSV线.列数不断变化.

有没有办法将每一行拆分成一个列表？欲望的结果应该是:

["ABC", "XYZ,MNO", "KLM"]
["ABC", "MN"]
["ABC", "123", "10", "OPPA GANGNAM STYLE", "LADY"]

我已经尝试使用line.split(",")但它无法正确拆分,因为每对双引号内都有逗号.

如果你知道如何,请帮助我.非常感谢你.

干杯,

PHP的Python,Java的的MySQL新手.

Answer 1

使用csv模块,它可以满足您的需求.

yourstring= '"ABC", "XYZ,MNO", "KLM"\n"ABC", "MN"\n"ABC", "123", "10", "OPPA GANGNAM STYLE", "LADY"'

import csv
import io

class MyDialect(csv.Dialect):
    strict = True
    skipinitialspace = True
    quoting = csv.QUOTE_ALL
    delimiter = ','
    quotechar = '"'
    lineterminator = '\n'


b = io.StringIO(yourstring)
r = csv.reader(b, MyDialect())

for i in r:
    print len(i), ':',' @ '.join(i)