Problem when adding multiple files from list [duplicate]

Question

My problem is that I have so many torrent files that I need to attach. I have them all in a list.

torrent_list = ['file1.torrent', 'file2.torrent', etc.......]

Downloading torrents by file:

torrent_file = open('my-torrent-file.torrent', 'rb')
qb.download_from_file(torrent_file)

Downloading multiple torrents by using files:

I Am not able to get it work without writing it manually like it is shown in the example. I want to load them all from the list. can someone help with this?

torrent_file_list = [open('1.torrent', 'rb'), open('2.torrent', 'rb')]
qb.download_from_file(torrent_file_list)

avarice · Accepted Answer · 2020-10-05 16:53:18Z

2

Try like this:

torrent_list = ['file1.torrent', 'file2.torrent']
for myFile in torrent_list:
  with open(myFile,'rb') as torr:
    qb.download_from_file(torr)

answered Oct 5, 2020 at 16:53

avarice

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1 Comment

Amachi Over a year ago

so, this method worked but after some time it breaks. via this examplea it was able to load 116 torrent files to my torrent client then its broke.

Barmar · Accepted Answer · 2020-10-05 17:26:59Z

0

Use a list comprehension.

torrent_file_list = [open(filename, 'rb') for filename in torrent_list])
qb.download_from_file(torrent_file)
for f in torrent_file_list:
    close(f)

edited Oct 5, 2020 at 17:26

answered Oct 5, 2020 at 16:52

Barmar

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9 Comments

Jorge Morgado Over a year ago

when it comes to the function open you must use it in a context manager, so the file close at the end. If you don't close the file then it could break it. And in this example you are not closing the file

Barmar Over a year ago

I believe that the garbage collector will automatically close the files in this case.

Jorge Morgado Over a year ago

You are right. I search for it and seems to be as you say. It is explained here Sorry 😅 and thanks, I didn't know that.

Barmar Over a year ago

You're right that it's generally preferable to open and close explicitly or use a context manager. But for this it was simpler to do it this way.

Amachi Over a year ago

so it is still not working for me. Traceback (most recent call last): File "D:\torrents\src\torrenthooker.py", line 15, in <module> qb.download_from_file([open(torrent_list, 'rb') for filename in torrent_list]) File "D:\torrents\src\torrenthooker.py", line 15, in <listcomp> qb.download_from_file([open(torrent_list, 'rb') for filename in torrent_list]) TypeError: expected str, bytes or os.PathLike object, not list

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