如何根据用户输入从 txt 文件中删除特定行？

Question

How do I go about deleting a specific line in a text file that is based on the user input?

def remove():
    delete_value = input("Enter the value you wish to delete: ")

    with open("values.txt", "r") as f:
        lines = f.readlines()
    with open("values.txt", "w") as f:
        for line in lines:
            if line.strip("\n") != delete_animal:
                 f.write(line)

Any help is appreciated, thank you!

Answer 1

def remove():
    delete_value = input("Enter the value you wish to delete: ")

    with open("value.txt", "r") as f:
        file = f.readlines()
    with open("value.txt", "w") as f:
        for line in file:
            # we will skip the line that contains our target word
            # in this case the delete_animal
            words = line.strip("\n").lower().split(' ')
            if delete_value.lower() not in words:
                f.write(line)

Input file:

line 1
line 2
line 3
line 4
may name is sudipto
my name is sudiptoandiloveprogramming

user input: sudipto

Output file after delete:

line 1
line 2
line 3
line 4
my name is sudiptoandiloveprogramming

Answer 2

Try this -

def remove():
    num = []
   
    delete_animal = input("Enter the name of the animal you wish to delete: ")
    file = open("txt file", "r")
    file.seek(0)
    list_of_lines = file.readlines()
    file.seek(0)
    lines = file.read().splitlines()
    file.close()
    if delete_animal not in lines:
        print("That line does not exist, please try again")
   

    for word in lines:
        num.append(0)
    
    if delete_animal == word:
        file = open('txt file','w')
        list_of_lines[len(num)-1] = ""
        file.writelines(list_of_lines)
        print('Animal Deleted')

This should delete the line in which the input animal is there

EDIT -
It should be A3_s3902169_stock.txt . You need to add that extension .txt