如何使用 python 仅将 URL 中的特定文本行保存到 txt 文件？

Question

So far, I've used the range function which works when I simply print the lines imported from the URL but when I try to save them to a txt file it only saves line 5 (or whatever the last number of the range is).

target_url="random URL"
request = requests.get(target_url)
text=request.text
lines=text.split("\n")
for i in range(1, 5):
    savefile = open('c:/Users/ghostsIIV/Desktop/examplefile.txt', 'w')
    savefile.write(lines[i])
savefile.close()

Answer 1

You overwrite your file on every iteration, wiping out the previous information:

for i in range(1, 5):
    savefile = open('c:/Users/ghostsIIV/Desktop/examplefile.txt', 'w')
    savefile.write(lines[i])
savefile.close()

If you want to write five lines, then just leave the file open as you accumulate data:

savefile = open('c:/Users/ghostsIIV/Desktop/examplefile.txt', 'w')
for i in range(1, 5):
    savefile.write(lines[i])
savefile.close()

This is also a good time to learn a (append) mode. Repeat your tutorial on Python files for that information.

Even shorter, open the file and write the four lines you want:

with open('c:/Users/ghostsIIV/Desktop/examplefile.txt', 'w') as savefile:
    savefile.write('\n'.join(lines[1:5])

with closes the file when you exit the block.