python csv阅读器不处理引号

Question

我有一个文件,我希望使用CSV阅读器进行解析,它有12行,但有些列包含引号,并且使逗号和单引号和新行更复杂,麻烦的是csv阅读器不处理引号正确地,引号内的引号被视为一个单独的实体,这里是我正在处理的一小部分样本.

ptr = open("myfile")
text = ptr.read()
ptr.close() 

for l in  csv.reader(text, quotechar='"', delimiter=',',quoting=csv.QUOTE_ALL, skipinitialspace=True):
    print l

该文件包含:

"0","11/21/2013","NEWYORK","USA
 Atlantic ","the person replied \"this quote\" to which i was shocked,
this came as an utter surprise"

"1","10/18/2013","London","UK","please note the message \"next quote\" 
is invalid"

"2","08/11/2014","Paris","France",
"the region is in a very important geo strategic importance"

Answer 1

你必须在读者中设置escapechar:

csv.reader(..., escapechar='\\')

默认情况下None(不知道为什么).

第二件事是您错误地初始化了阅读器.您不会将字符串传递给阅读器,而是传递给流:

with open("myfile") as fo:
    reader = csv.reader(
        fo,
        quotechar='"',
        delimiter=',',
        quoting=csv.QUOTE_ALL,
        skipinitialspace=True,
        escapechar='\\'
    )

    for row in reader:
        print row