Hey folks --
I'm trying to build pyzmq 14.3.1, but getting a couple of test
failures. One is intermittent, but the other seems to happen every
time (except when the tests crash early because of the intermittent
failure).
This is on Scientific Linux 6.5, 64-bit Intel, using the OS RPM
On 22 July 2014, Pieter Hintjens said:
Good catch. We could definitely use ephemeral ports (libzmq supports
that), though it would take changes to most of the test cases.
OK, I'll open a bug. I'll see about starting on a patch too.
From
the zmq_tcp man page:
The TCP port number may
On 23 July 2014, McMillan, Scott A said:
Hi,
Sorry for the very basic question, I'm new to zeromq.
The FAQ (http://zeromq.org/area:faq#toc0) says PUB does multicast. How
should I interpret this statement? Does this mean that IP-level multicast
is required to use the pub/sub pattern?
On 24 July 2014, Mike Zupan said:
I'm new to zeromq on the dev side and looking for the best layout to use
for a server/client setup where the server can send commands to clients and
also the clients can send data back to the server without being told to run
a command. Pretty much like the
Hi all --
I stumbled across this because our build system (a local instance of
OBS) uses chroot environments to build RPMs, with multiple chroots on
a single host. If the zeromq 4.0.x tests happen to run concurrently in
different chroots on the same host, they fail.
You can reproduce this easily
Hi all --
I'm helping maintain a ZeroMQ-based system that currently uses a
homebrew cryptosystem on top of libzmq 3.2.4. Obviously I'd like to
upgrade to curve and libzmq 4. While I'm doing that, I'd like to
change it so that only untrusted connections (across the Internet) are
subject to
On 25 February 2014, MinRK said:
The weird errno should be fixed in
masterhttps://github.com/zeromq/pyzmq/pull/483.
But this should only affect the case when libzmq is not linked against
libsodium. Are you sure that it is?
Arggh. You're quite right; I have must have forgotten
On 26 February 2014, Jim Chan said:
Hi there,
I'm really new to zmq multicast and would like to try it out with below very
simple code:
void *context = zmq_ctx_new();
void *socket = zmq_socket (context, ZMQ_PUB);
int rc = zmq_bind(socket,
On 26 February 2014, I said:
Cannot confirm your fix yet, as I'm battling a CFFI error.
In case anyone can throw me a hint, the problem I'm now having is:
$ PYTHONPATH=/data/src/pyzmq python generate_certificates.py
On 26 February 2014, To ZeroMQ development list said:
On 26 February 2014, I said:
Cannot confirm your fix yet, as I'm battling a CFFI error.
In case anyone can throw me a hint, the problem I'm now having is:
$ PYTHONPATH=/data/src/pyzmq python generate_certificates.py
On 24 February 2014, MinRK said:
How did you build libzmq and/or install pyzmq? It could be that you don't
have libsodium linked, in which case the curve_keypair would fail. If
that's the case, obviously the error message should be better.
My original setup from several weeks ago:
* git
On 25 February 2014, To ZeroMQ development list said:
But that seems to have decayed somewhat. I noticed an error from
pyzmq's setup script about libsodium in the umpteenth build yesterday.
I think maybe I'll start from scratch with a fresh prefix dir and see
if that clarifies things.
OK I've
Hey all --
I'm playing around with the security examples in latest master of
pyzmq. Looks promising, but not perfect. In particular, I'm stuck by
this failure:
$ python generate_keys.py
Traceback (most recent call last):
File generate_keys.py, line 50, in module
175520bd3b2562089148f8bd66c9ebc8720e14b2
Author: Greg Ward g...@gerg.ca
Date: Thu Jan 16 17:10:54 2014 -0500
Make import pyczmq faster (backwards incompatible change!).
Ooops!
The problem is apparently that zauth.py (and several other modules:
zbeacon, zcertstore, ...) implicitly
Hi all --
I'm back to playing around with pyczmq for secure messaging. I'm
perfectly happy with the pyzmq interface. In fact, I could happily
stick with 0MQ 3.2.x, and ignore CZMQ (and pyczmq) entirely, except
for the need for authentication and encryption.
A few weeks ago, I successfully
. the Python binding could just
ignore zstr_sendf() -- I imagine most Python programmers would reach
for Python's string-formatting facilities first.
Greg
--
Greg Wardhttp://www.gerg.ca
g...@gerg.ca @gergdotca
On 17 January 2014, Pieter Hintjens said:
On Thu, Jan 16, 2014 at 9:01 PM, Michel Pelletier
pelletier.mic...@gmail.com wrote:
Yes, pyczmq is very much a literal 1 to 1 wrapper around the czmq C
interface.
Note that there is also an object oriented interface:
CZMQ was designed to
On 17 January 2014, MinRK said:
Would it make sense for pyzmq to wrap CZMQ as well?
I don't think it would. Most of the things czmq adds to libzmq are more
logically reimplemented in Python, rather than exposed by linking anothing
library. The added C dependency would also be too much of a
On 17 January 2014, Michel Pelletier said:
zstr however is how you turn messages into strings. It is not an
implementation of a string type. It is critical to the functionality of
pyczmq (assuming you want string output from the library).
I was going to start another thread about this... but
Hi all --
after successfully using czmq for the first time yesterday, I'm now
trying pyczmq. (Specifically, I'm translating the ironhouse example
from Pieter's blog: http://hintjens.com/blog:49.)
I got stumped pretty quickly:
import pyczmq
ctx = pyczmq.zctx.new()
ctx.set_linger(1000)
On 16 January 2014, I said:
after successfully using czmq for the first time yesterday, I'm now
trying pyczmq. (Specifically, I'm translating the ironhouse example
from Pieter's blog: http://hintjens.com/blog:49.)
I got stumped pretty quickly:
import pyczmq
ctx = pyczmq.zctx.new()
Speaking of pyczmq, it is *very* slow to import:
$ time python -c 'import pyczmq'
python -c 'import pyczmq' 1.11s user 0.05s system 100% cpu 1.152 total
Turns out this is because pyczmq/__init__.py imports every submodule,
as well as some identifiers in a couple of submodules. I'm
On 16 January 2014, Lindley French said:
After pulling down libzmq master at
53d0199e50https://github.com/zeromq/libzmq/commit/53d0199e50ddc9fad07b5cf64113cdbf7a0fbf04,
my build on linux breaks:
*** No rule to make target `curve_keygen.c', needed by `curve_keygen.o'.
Stop.
Works fine for
-obvious to me, I assume it will be non-obvious to others in
future. So I made several working examples and wrote up a blog post:
http://gerg.ca/blog/post/2013/zmq-child-process/
Comments/criticisms are welcome.
Greg
--
Greg Wardhttp://www.gerg.ca
g...@gerg.ca
Hi all --
I'm working on overhauling the 0MQ layer of an existing app. (It's
written in Python, using zeromq 3.2.3 and pyzmq 13.1.0.) The good
thing about the existing code is that the entire 0MQ layer is isolated
in one Python module. Unfortunately, that module appears to reinvent
0MQ: it does
On 17 December 2013, I said:
Unfortunately, I'm getting lots of No route to host (EHOSTUNREACH)
errors trying to send messages over a ROUTER socket.
I think I may have found my problem.
The 0MQ layer doesn't expose 0MQ IDs to its clients. Instead, every
node has a human-readable name which
On 17 December 2013, Lindley French said:
This is a bit of a novice question, but I can't find any answer to this in
the Guide
If a DEALER is connected to a ROUTER, and the underlying TCP connection
goes down for some reason and is then reestablished, will the DEALER still
have the same
On 09 December 2013, Roman said:
Greg, thank you for answering.
Sure, it is definitely known that it is impossible to compile C language
programs on OpenWRT box itself. In case you need compilation,
cross-compiler is used on another platform.
In my case I already have zeromq library compiled
On 08 December 2013, Roman said:
I tried to install python zeromq binding on openwrt issuing command python
setup.py install. Script ended with the following error:
unable to execute ccache_cc: No such file or directory
error: command 'ccache_cc' failed with exit status 1
It sounds like
On 05 December 2013, Matt Connolly said:
What operating systems does Build Bot support? Or is it cross-platform /
indifferent?
Pretty much all of them. If Python and Twisted work, then BuildBot
should work.
BuildBot has a pretty steep learning curve. It's harder to do basic
stuff than
Hi all --
I have an app running just fine on 0MQ 3.2.3 and pyzmq 13.1.0.
Unfortunately it includes a homebrew cryptosystem that makes me
nervous. I'd like to move to 0MQ 4.0 and use the builtin crypto there.
I don't see any docs on porting to 0MQ 4.0... am I missing something?
Or is it trivial --
On 30 November 2013, Pieter Hintjens said:
Hi Justin,
This is an area of some debate. We've had patches to libzmq that made
sockets thread safe, and removed those patches again. Sharing sockets
between threads for the most part is bad for design and performance.
However there are languages
Hi all --
I'm hacking on a task distribution system used internally here. It has
N masters sending tasks (shell commands) out to M workers, and then
doing stuff with the results. There's something that annoys me
slightly about the implementation: the worker runs each task in a
separate thread.
software that sucks *less*.
Greg
--
Greg Wardhttp://www.gerg.ca
g...@gerg.ca @gergdotca
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Hi all --
the ZeroMQ guide has an example, syncpub/syncsub, of a publisher and
subscribers synchronizing over REQ/REP sockets before starting
publishing in order not to lose messages. The example uses a sleep()
to paper over the delay between the subscriber connect()ing to the
publisher and
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