[英]Reading and parsing a CSV file in Python with Regex first column
I have a CSV file (calendar), 5 columns that I want to read and parse with the following conditions using a script: 我有一个CSV文件(日历),我希望阅读5列,并使用脚本解析以下条件:
The first part of the script is done to skip headers. 脚本的第一部分用于跳过标题。 The second part I think a regex is required but I just don't know how to first remove the / and then move the 0101 from before 2019 to after 2019 so that the result is 20190101
第二部分我认为正则表达式是必需的,但我只是不知道如何首先删除/然后将0101从2019年之前移动到2019年之后,结果是20190101
If someone could help that would be great! 如果有人可以提供帮助那就太棒了!
def parse_calendar(infile, outfile):
with open(outfile, 'w', newline='') as output:
with open(infile, newline='') as input:
reader = csv.reader(input, delimiter=',', quotechar='"')
next(reader, None) # skip the headers
writer = csv.writer(output, delimiter=',', quotechar='"')
for row in reader: # process each row
writer.writerow(row)
I expect the output to be like the following compared to the initial file: 我希望输出与初始文件相比如下:
01/01/2019 New Year's Day NC US 01/01/2019新年元旦美国
20190101 New Year's Day NC US 20190101元旦NC美国
Thanks guys for the responses. 谢谢大家的回复。
So with this code I get the following output: 所以使用这段代码我得到以下输出:
import csv
def parse_calendar(infile, outfile):
with open(outfile, 'w', newline='') as output:
with open(infile, newline='') as input:
reader = csv.reader(input, delimiter=',', quotechar='"')
next(reader, None) # skip the headers
writer = csv.writer(output, delimiter=',', quotechar='"')
for row in reader: # process each row
replaced = row[0].replace('/','')
row[0] = replaced
writer.writerow(row)
01012018,New Year's Day,N,C,US 01012018,元旦,N,C,US
01012018,New Year's Day,N,C,CA 01012018,元旦,N,C,CA
01152018,Martin L. King Day,N,C,US 01152018,Martin L. King Day,N,C,US
What code do I need to add to the script get the formatting different now from 01012018 to 20180101 given the type is a String? 我需要添加到脚本中的代码是什么,从01012018到20180101格式不同,因为类型是字符串? For each line then off course.
对于每一行然后偏离航线。
Appreciate it alot thanks 感谢它很多
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.