用Python将换行符写入csv [英] Write newline to csv in Python

问题描述

我想通过将一行新内容(包括换行符)写入一个csv文件来结束for循环的每个交互.我有这个:

I want to end each interation of a for loop with writing a new line of content (including newline) to a csv file. I have this:

# Set up an output csv file with column headers
with open('outfile.csv','w') as f:
    f.write("title; post")
    f.write("\n")

这似乎并未写入实际的\ n(换行符)文件.进一步:

This does not appear to write an actual \n (newline) the file. Further:

    # Concatenate into a row to write to the output csv file
    csv_line = topic_title + ";" + thread_post
    with open('outfile.csv','w') as outfile:
                 outfile.write(csv_line + "\n")

这也不会将游标中的光标移动到下一行.每行新代码，以及循环的每次迭代，都会覆盖最新的一行.

This, also, does not move the cursor in the outfile to the next line. Each new line, with every iteration of the loop, just overwrites the most recent one.

我也尝试了outfile.write(os.linesep)，但是没有用.

I also tried outfile.write(os.linesep) but did not work.

推荐答案

将"w"更改为"a"

change 'w' to 'a'

with open('outfile.csv','a')

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