我的数据在列的值中有逗号，这也是一个分隔符，如何通过 csv.reader 在 python 中读取它

Question

这就是我的数据的样子，

"id","text"
"416752", "i's ** This year’s theme is \"Each for Equal\".**  When: Friday March 6th Time: 10:00am-12:00pm  Where:  HQ 155 Gordon Baker Road, 5th floor, Halifax/Dartmouth Boardoom   Please note there are 2 shifts - one to log your attendance for the event and the other to log your donation, if applicable.    Structure of the Event  10h00am - 10h15am:   Welcome, cupcakes, coffee, social media picture opportunity (#eachforequal)  10h15am – 10h25am:   Intro from WIA, IWD, theme introduction, agenda, community initiative: Dress for Success  10h30am – 11h15am:   Keynote Speaker (Shasta Townsend)  11h30am – 12h00pm:   Panel Stories (Mike Sharun, Dennis Hoffman, Barbara Dahan and Nikki Matarazzo)     **"

以下是我尝试过的逻辑：

import csv
import codecs
file_path=r'C:\data.csv'
f = codecs.open(file_path, encoding = "utf8", errors ='replace')
csvreader = csv.reader(f, delimiter=',')
for row in csvreader:
    print(row)

Output：

['416752', 'i\'s ** This year’s theme is \\Each for Equal\\".**  When: Friday March 6th Time: 10:00am-12:00pm  Where:  HQ 155 Gordon Baker Road', '5th floor', 'Halifax/Dartmouth Boardoom   Please note there are 2 shifts - one to log your attendance for the event and the other to log your donation', 'if applicable.     Structure of the Event    10h00am - 10h15am:   Welcome', 'cupcakes', 'coffee', 'social media picture opportunity (#eachforequal)  10h15am – 10h25am:   Intro from WIA', 'IWD', 'theme introduction', 'agenda', 'community initiative: Dress for Success  10h30am – 11h15am:   Keynote Speaker (Shasta Townsend)  11h30am – 12h00pm:   Panel Stories (Mike Sharun', 'Dennis Hoffman', 'Barbara Dahan and Nikki Matarazzo)     **"']

我得到的不是两个值，而是更多，因为我的数据有很多逗号。

Answer 1

逗号后的空格是问题所在。 使用skipinitialspace=True来解决这个问题。 还建议使用内置的open 。 使用更新的数据，您还需要 doublequote doublequote=False和escapechar='\\' 。

字符串中的双引号默认通过加倍字符进行转义，例如"Say, ""Hi!""" ，但您的示例使用反斜杠进行转义，例如"Say, \"Hi!\"" 。 这两个附加选项禁用双引号，而是使用转义字符。

import csv

file_path = 'data.csv'
with open(file_path, encoding='utf8', newline='') as f:
    csvreader = csv.reader(f, skipinitialspace=True, doublequote=False, escapechar='\\')
    for row in csvreader:
        print(row)

Output：

['id', 'text']
['416752', 'i\'s ** This year’s theme is "Each for Equal".**  When: Friday March 6th Time: 10:00am-12:00pm  Where:  HQ 155 Gordon Baker Road, 5th floor, Halifax/Dartmouth Boardoom   Please note there are 2 shifts - one to log your attendance for the event and the other to log your donation, if applicable.    Structure of the Event  10h00am - 10h15am:   Welcome, cupcakes, coffee, social media picture opportunity (#eachforequal)  10h15am – 10h25am:   Intro from WIA, IWD, theme introduction, agenda, community initiative: Dress for Success  10h30am – 11h15am:   Keynote Speaker (Shasta Townsend)  11h30am – 12h00pm:   Panel Stories (Mike Sharun, Dennis Hoffman, Barbara Dahan and Nikki Matarazzo)     **']

Answer 2

正如这个问题中提到的为什么 Python CSV 阅读器忽略双引号字段？ 您需要添加 skipinitalspace 参数，以便 csv.reader 能够理解引号。

import csv
import codecs
file_path=r'C:\data.csv'
f = codecs.open(file_path, encoding = "utf8", errors ='replace')
csvreader = csv.reader(f, delimiter=',', skipinitialspace=True)
for row in csvreader:
    print(row)