如何使用python根據某些字符串刪除TXT文件中的某些行，將文件內容復制到另一個文件

Question

我有這個 python 腳本，它打開一個文件對話框並選擇一個文本文件而不是將其內容復制到另一個文件，在復制到下一個文件之前我需要做的是根據腳本中預定義的一些字符串刪除幾行.

問題是文件按原樣復制而沒有刪除任何內容。

誰能幫我解決這個問題？？

打開目錄.py

 #!/usr/bin/python

import Tkinter
from os import listdir
from os.path import isfile, join
import tkFileDialog


def readWrite():
    unwanted = set(['thumbnails', 'tikare', 'cache'])
    mypath = "C:\Users\LT GM\Desktop/"

    Tkinter.Tk().withdraw()
    in_path = tkFileDialog.askopenfile(initialdir = mypath, filetypes=[('text files', ' TXT ')])

    files = [f for f in listdir(mypath) if isfile(join(mypath, f))]
    for file in files:
        if file.split('.')[1] == 'txt':
            outputFileName = 'Sorted-' + file
            with open(mypath + outputFileName, 'w') as w:
                with open(mypath + '/' + file) as f:
                    for l in f:
                        if l != unwanted:
                            print l
                            w.write(l)
    in_path.close()
if __name__== "__main__":
    readWrite()

更改腳本

#!/usr/bin/python

import Tkinter
from os import listdir
from os.path import isfile, join
import tkFileDialog


def readWrite():
    unwanted = set(['thumbnails', 'tikare', 'cache'])
    mypath = "C:\Users\LT GM\Desktop/"

    Tkinter.Tk().withdraw()
    in_path = tkFileDialog.askopenfile(initialdir = mypath, filetypes=[('text files', ' TXT ')])

    files = [f for f in listdir(mypath) if isfile(join(mypath, f))]
    for file in files:
        if file.split('.')[1] == 'txt':

            if file.strip() in unwanted:
                continue
                outputFileName = 'Sorted-' + file
                with open(mypath + outputFileName, 'w') as w:
                    with open(mypath + '/' + file) as f:
                        for l in f:
                            if l != unwanted:
                                print l
                                w.write(l)
    in_path.close()
if __name__== "__main__":
    readWrite()

Answer 1

blacklist = set(['thumbnails', 'quraan', 'cache'])

with open('path/to/input') as infile, open('path/to/output', 'w') as outfile:
    for line in infile:
        if line.strip() in blacklist: continue  # if you want to match the full line
        # if any(word in line for word in blacklist): continue  # if you want to check if a word exists on a line
        outfile.write(line)