Python 删除 CSV 文件的第一行
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Removing the first line of CSV file
提问by Coder77
How would I remove the first line of a CSV file in python, the first few lines of my CSV file are:
我将如何在 python 中删除 CSV 文件的第一行，我的 CSV 文件的前几行是：
Domain Name, ItemID, Auction Type, Time Left, Price, Bids, Domain Age, Traffic,ValuationPrice
TICKETFINE.COM,134774365,Bid,05/09/2014 08:00 AM (PDT),0,0,0,0,with open("test.csv",'r') as f:
with open("updated_test.csv",'w') as f1:
next(f) # skip header line
for line in f:
f1.write(line)
CREATINGMY.COM,134774390,Bid,05/09/2014 08:00 AM (PDT),0,0,0,0,import csv
try:
read = csv.reader(f)
read.next() # Skip the first 'title' row.
for r in read:
# Do something
finally:
# Close files and exit cleanly
f.close()
WPTHEMEHELP.COM,134774444,Bid,05/09/2014 08:00 AM (PDT),,1,0,0,AttributeError: '_io.TextIOWrapper' object has no attribute 'next' python
APK-ZIPPY.COM,134774445,Bid,05/09/2014 08:00 AM (PDT),,0,0,0,##代码##
FAMILYBUZZMARKETING.COM,134689583,Bid,05/09/2014 08:00 AM (PDT),,0,0,0,##代码##
AMISRAGAS.COM,134689584,Bid,05/09/2014 08:00 AM (PDT),,0,0,0,##代码##
采纳答案by Padraic Cunningham
回答by goncalopp
回答by mauve
Are you opening it and re-saving it with the same name?
您是否打开它并使用相同的名称重新保存它？
Otherwise, you could read it in without reading in the first line and writing to a new file without that line.
否则，您可以在不读取第一行并写入没有该行的新文件的情况下读取它。
回答by Signus
This is what I do when I want to skip reading the first line of a CSV.
当我想跳过阅读 CSV 的第一行时，这就是我所做的。
All that has to be done is call the next()function of the CSV object, in this case - read, and then the pointer to the reader will be on the next line.
所要做的就是调用next()CSV 对象的函数，在这种情况下 - read，然后指向阅读器的指针将位于下一行。
Hope this is pretty clean an simple for your purposes!
希望这对于您的目的来说非常干净和简单！
回答by Yep_It's_Me
For anyone else caught up this error:
对于遇到此错误的其他人：
##代码##In Python3 a text file object doesn't have a next()function.
So you can't call f.next().
在 Python3 中，文本文件对象没有next()函数。所以你不能打电话f.next()。
Instead you should use f.readline()as specified in this answer.
相反，您应该f.readline()按照此答案中的说明使用。
Or you can use the built-in next(f)which @vrjr mentioned in the comment, and is shown in this answer.
或者您可以使用next(f)评论中提到的@vrjr的内置函数，并显示在此答案中。
