#twisted

Tickets pending review: https://tm.tl/#8133, #8966 (the0id), #9083, #9086, #9100, #9101, #9111, #9118, #4964 (jameshilliard), #9128

Tickets pending review: https://tm.tl/#8133, #8966 (the0id), #9083, #9086, #9100, #9101, #9111, #9118, #4964 (jameshilliard), #9128

Hello. I want to decode the output of a command launched with subprocess.check_output. Which encoding should I use? sys.stdout.encoding? sys.getdefaultencoding()? sys.getfilesystemencoding()? Others?

sorry, wrong chan

Tickets pending review: https://tm.tl/#8133, #8966 (the0id), #9083, #9086, #9100, #9101, #9111, #9118, #4964 (jameshilliard), #9128

Tickets pending review: https://tm.tl/#8133, #8966 (the0id), #9083, #9086, #9100, #9101, #9111, #9118, #4964 (jameshilliard), #9128

hello

guys do I need to use producers if I just want to transfer a file over a LAN?

will it totally block the other clients?

is I just keep sending chunks of it

andenixa: generally producers are pretty good

andenixa: can you tell us more about what you're doing?

I have a lineReceaive protocol very simple

sometimes server would request a datafile so I set it in raw mode

files could be huge, but I assume it interrupts every even chunk to process other clients

andenixa: http://twistedmatrix.com/documents/current/api/...

let me see if i can put together an example for you

I had so numerous troubles with that one but it was long ago

I am successfully sending files at thte moment but its not very elegant

runciter: is it generally a good idea to use twisted under Python 3.5?

I can see its not fully ported

I just moved half of my codebase to twisted when I realized that

andenixa: it's largely ported now

andenixa: IME, if you're not doing anything extra-weird Python3 is fine

thank you, actually I am doing extra simple.

But as I see it doesn't even support QT4

It used to in 2x version

Qt5 works, AFAIK

I don't suppose QT5 is a drop in replacement for Qt4

not sure, haven't had to do Qt for a while now ;)

and the application is heavily based on QT4

I don't see much options actually

for python

i'm sure they have a doc on that, and/or "how to upgrade" guide if the answer is "it's not compatible"

meejah: it would take a year to upgrade a full scale application with a single pair of hands

meejah: its probably compatible, but not a drop-in replacement

sorry, i don't know either way. "in general" Qt has great backwards-compat, but don't know about the python libraries/bindings ... :/

andenixa: https://gist.github.com/markrwilliams/e6e726af1...

andenixa: the interesting part is here: https://gist.github.com/markrwilliams/e6e726af1...

we create a FileSender(), tell it to send an open file over the connection (transport) over which we're running, then arrange for the file to be closed and the connection closed when the transfer completes, successfully or not

by using FileSender, many different clients could request files simultaneously, and each would receive its file incrementally, without blocking the others

runciter: thank s alot, I shall give it a look

andenixa: 👍

Tickets pending review: https://tm.tl/#8133, #8966 (the0id), #9083, #9086, #9100, #9101, #9111, #9118, #4964 (jameshilliard), #9128

Hello gusy.

my dataReceived looks like this. https://repl.it/HjP0 Rarely client does not get echo back. Is twisted losing connection before it will write all data to client?

RandomNoob: are you using TLS?

glyph: Nope. Just tcp

reactor.listenTCP(TCP_PORT, EchoFactory())

reactor.run(installSignalHandlers=False) # As I am running it in the thread

whoa why are you running it in a thread??

I have web app running with apache2

I also have few more threads

as twisted locks while True

I cant deal with it. I am reading twisted docs right now and adding it to my project which already in production

have no time for big changes.

what are you using twisted for?

i'd recommend running it in its own process, separate from apache2

as TCP server.

or, you could look into crochet

RandomNoob: where do you spawn that thread?

runciter: I look closely with crochet

RandomNoob: there's no concept of a startup or shutdown sequence with modwsgi

in wsgi process. I am also using Sqlalchemy.

RandomNoob: that means every single python process/thread will attempt to spawn the server

that will lead to some weird results

i definitely suggest just running twisted in a separate process

How do you think to implement it?

give me advice

can you tell me more about what you'd like to accomplish?

I have lots of clients which are sending me data via TCP.