file.write() 保留 creating/returning 一个空文件

Question

我正在尝试写入文件，但代码无法正常工作，并且 write() 一直返回空文本文件。

with open('UFOGB_Observations.txt', 'r') as UFO_Obsr:
    lines_txt = UFO_Obsr.readlines()
    print('file read')

    #Tell python where a column ends:
    for x in range(0, ):
       UFO_Obsr.split('\t')

    with open ('UFO_Observations_1.txt', 'w+') as UFO_Obsw:
        ##with a for loop, iterating through the rows to
        ##change all instances of html codes(I found a few other html codes!):
        for line in UFO_Obsr: 
            line = line.replace('&#39', "'")
            line = line.replace('&#33', '!')
            line = line.replace('&amp;', '&')
            UFO_Obsw.write(line)
    print('File written')

Answer 1

您应该遍历 lines_txt，您已经通过执行 readlines() 或删除 lines_txt = UFO_Obsr.readlines()

到达文件末尾

Answer 2

    #Tell python where a column ends:
    for x in range(0, ):
       UFO_Obsr.split('\t')

没有做任何事情，所以我将其省略。

原文件每一行，修改后写入新文件

with open('UFOGB_Observations.txt', 'r') as UFO_Obsr, open ('UFO_Observations_1.txt', 'w+') as UFO_Obsw:

    ##with a for loop, iterating through the rows to
    ##change all instances of html codes(I found a few other html codes!):
    for line in UFO_Obsr: 
        line = line.replace('&#39', "'")
        line = line.replace('&#33', '!')
        line = line.replace('&amp;', '&')
        UFO_Obsw.write(line)
    print('File written')

file.write() 保留 creating/returning 一个空文件

file.write() keeps creating/returning an empty file

python

file-io