Transferring files using sockets

[Martin v. Loewis]

theivo at abv.bg (I.C.) writes:

> I am trying to transfer a file using the socket module, but I'm not
> sure how to do this. Should I split the file into little(1KB) packages
> and then transfer them, or is there a possibility to send the whole
> file?

You can transfer the entire file contents in a single .write or .send
call; the TCP implementation will itself split it into smaller
packets. You still need to have a (byte) string object as an argument
for .write/.send; as a result, you would need to read the entire file
first. If the file is very large, reading it all at once may exhaust
the memory - that's why it might be desirable to split it into chunks.

If you don't want to write the copy loop yourself, you could consider
shutil.copyfileobj.

HTH,
Martin