Delete a Line in Text File Using Python

Let’s see how you can delete a line in a text file using python code. It is very simple just loop through each line and excludes the matched line with your specific variable and delete it.

Suppose you have a file like below and the name is myTextFile.txt.

This is the first line.
The second line.
Delete the third line.
and this is the fourth line.

Let’s now make a python code script to delete a specific line in the text file (myTextFile.txt).

def deleteSpecificLine():
    file = 'myTextFile'
    fileOpen = open(file)
    output = []
    str="Delete"
    for line in fileOpen:
        if not line.startswith(str):
        output.append(line)
    fileOpen.close()
    fileOpen = open(file, 'w')
    fileOpen.writelines(output)
    fileOpen.close()
deleteSpecificLine()

In the above code, we made a function deleteSpecificLine() and open that text file to loop through each line. Then we compared with matching str each line and if matched then it will exclude that line and generate a new array to write again in that file.

Reference function:
startswith(): Returns true if the string starts with the specified value

There are many string functions. You can use it as per your requirments. Check all python string functions.

Hope you like it. If you have any query let me know. I would like to help you with that.

Being Tricky 😉