如何删除整个行，如果行有特定的词在python

cclgggtu 于 2022-12-17 发布在 Python

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我有这样一个.txt文件：

the pen is yellow
pen is yellow
    hi
hello

并且我想要删除包含“pen”单词的整行
像这样：

hi
hello

我试过这个

with open("myfile.txt", "r") as f:
    lines = f.readlines()
with open("myfile.txt", "w") as f:
    for line in lines:
        if "pen" in line:
            f.write(line)

----------------------和-------------------------------------------------我如何删除.txt文件中的“pen”单词

python

来源：https://stackoverflow.com/questions/74825059/how-to-delete-the-entire-line-if-line-has-specific-word-in-python

1条答案

按热度按时间

hof1towb1#

首先您需要将结果放到另一个文件（myfile2）中，并且您需要在此文件中打印不包含“pen”的行。

with open("myfile.txt", "r") as f:
    lines = f.readlines()
with open("myfile2.txt", "w") as f:
    for line in lines:
        if "pen" not in line:
            f.write(line)
        else:
            f.write("\n")

第二个仅替换单词，请使用replace（，）

with open("myfile3.txt", "w") as f:
    for line in lines:
        line = line.replace("pp","")
        f.write(line)

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如何删除整个行，如果行有特定的词在python

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