How Can I Delete a Specific Line from a Text File Using Python?

Deleting a Specific Line in a Text File with Python

In the realm of text manipulation, it's often necessary to modify or remove specific lines from text files. Let's explore how to tackle this task using the versatile Python language.

Suppose you possess a text file brimming with a collection of nicknames. Your mission is to eliminate a particular nickname from this file with the efficiency of Python.

Solution:

To fulfill this requirement, we'll employ a two-step approach:

1. Read and Store the File's Lines:

   Begin by opening the file in read mode ("r") and reading its contents into a list named lines. This step captures the entire contents of the file, including all the nicknames.

   with open("yourfile.txt", "r") as f:
       lines = f.readlines()

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2. Rewrite the File with the Deleted Line Omitted:

   Reopen the file this time in write mode ("w"). Next, iterate through the lines list and write back all the lines except the one you wish to delete. To do this, compare each line with the targeted nickname after stripping the newline character (n) using strip("n").

   with open("yourfile.txt", "w") as f:
       for line in lines:
           if line.strip("\n") != "nickname_to_delete":
               f.write(line)

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By executing this code snippet, you effectively remove the specified nickname from your text file while preserving the rest of its contents.

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