How about one more way? :)
import pymel.core as pm
curves = map(lambda x:x.firstParent().nodeName(), pm.ls(type='nurbsCurve'))
This returns the string names of the parent transforms. If you want the
actual PyNodes, just get rid of the nodeName() method.
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Thanks for the tip Cesar. Iterating is bad habit from my Mel days I think.
However the removal of duplicates is probably a good idea if Sam is going
to extend this code to beyond just selection. Unless I am mistaken my tests
show that if there are more than one nurbsCurve shape under a transform
th
Hi
I have a c++ deformer node that calls a python function using:
MString res = MGlobal::executePythonCommandStringResult(cmd);
This has always been working fine with legacy viewport, but with VP2.0 it fails
most of the time (not always) with the following error:
# Traceback (most recent call
Thanks Justin, having a look.
Re zeromq: That would be good option, and also solve this problem before
ever having it. I did run with it at first, but found distribution to be
the killer here.
The reason, by the way, for using Flask here is because it's already
running as I'm using it for more th
If you have zeromq already installed and available, it's another
option...possibly also heavy-handed compared to a PIPE.
On Mon, Mar 9, 2015 at 4:12 PM, Justin Israel
wrote:
> Here is an example of communicating via stdin between the parent and child
> process:
> https://gist.github.com/justinfx
Here is an example of communicating via stdin between the parent and child
process:
https://gist.github.com/justinfx/b94fab9d1f056380cb28
You launch the parent, and it will launch the process, using a PIPE for
stdin. The child then starts a thread and reads lines from stdin. The
parent can communi
wow, simple as that. thanks all for your help here!
Sam
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But flask is an extremely heavy handed approach to getting to processes
talking on the same machine.
That’s exactly what I’ve got, and can understand it’s heavy-handed.
I did have a closer look at subprocess and pipes, but quickly remembered
what my struggles were last time I tried. Maybe in time
My suggestion of sockets was a lighter weight suggestion than using flask
to start an httpserver and route full requests between processes. Maybe I
am missing something from that example. But flask is an extremely heavy
handed approach to getting to processes talking on the same machine.
Especiall
No problem at all Marcus, thanks for the help thus far. If I manage to
figure out what is going on I shall post up my answers :)
On 9 March 2015 at 18:15, Marcus Ottosson wrote:
> In that case my advice is no good, sorry. I can't say for sure what's
> going on without know more about what PyChar
In that case my advice is no good, sorry. I can't say for sure what's going
on without know more about what PyCharm does in debug mode.
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No PyCharm is using the same C:\Python27\python.exe executable for both run
and debug mode. I had a look at the conf file and it is the same as your
conf file above. Should I have changed the location of the conf file to my
project directory?
On 9 March 2015 at 17:33, Marcus Ottosson wrote:
> Ha
Have a look within the qt.conf file, it’s a simple ConfigFile format (i.e.
a .ini file).
It should point to where the Qt binaries are; typically in your PyQt4
directory. If the paths are relative, and you move the file, then the
resulting absolute paths will be bad. You can safely put in the absol
Hello Marcus,
I have removed my sys.path.append line and have left it as you have
suggested.
import sys
import os
import PyQt4
dirname = os.path.dirname(sys.executable)
qtconf = os.path.join(dirname, "qt.conf")
os.environ["PATH"] += ";" + os.path.dirname(PyQt4.__file__)
print os.environ["PATH"]
I have appended the PYTHONPATH using sys.path.append and have added the
qtconf file as per Marcus’ answer
Could you take me through what you did exactly?
and also: sys.path.append(‘C:\Python27\lib\site-packages\pyqt4’)
I think you may have misunderstood me here, this is not the same as:
os.e
Yes Pycharm tries to download automatically from pypi. It it uses PyDev
from eclipse to debug. I have appended the PYTHONPATH using sys.path.append
and have added the qtconf file as per Marcus' answer and also:
sys.path.append('C:\\Python27\\lib\\site-packages\\pyqt4')
But I have had no luck as
No problem, Justin.
Also, I missed this.
why not just use sockets?
Sockets, as in starting another server within the client? Or are you
referring to a more light-weight way of utilising sockets here? The weight
of instantiating another server was one reason for not doing that initially.
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Unfortunately I can't give a custom example at this moment, but you have a
perfectly good stdin pipe that can be used in your subprocess Popen
command. Just google how to use it in the meantime. You can write to stdin
in the parent process and read from it in the child. It would be exactly
like wh
Sorry, that’s:
>>> import subprocess>>> proc = subprocess.Popen(["python"],
>>> creationflags=subprocess.CREATE_NEW_CONSOLE)>>> send_signal_somehow(proc)
On 9 March 2015 at 10:44, Marcus Ottosson wrote:
> Ah, excellent. This is what I’ve been looking for, I merely used this
> inverse reque
Ah, excellent. This is what I’ve been looking for, I merely used this
inverse request thing because I didn’t understand the alternatives well
enough.
If you own the child process, you can just use a pipe between them to
communicate.
I’ve seen this mentioned, read about it, attempted it, but neve
Does this mean the communication is taking place all on the same machine?
If that is the case, why not just use sockets? Why the whole http
server/client?
I've used signals for specific things and you don't necessarily have to
have launched or own the target process. In a certain daemon service I
Cool, thanks.
At the risk of going off topic, I was also looking into the signals
standard library for this, as I’ve got a handle to the Popen instance of
the client in this case.
Have you, or anyone, had any experience in passing user-defined events
across processes using signals?
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You re
Then it sounds like the long polling solution should work just fine if you
only need a one-off notification.
On Mon, 9 Mar 2015 10:52 PM Marcus Ottosson wrote:
> Thanks Justin, long-polling sounds like what this is.
>
> The specific problem is having a client receive a single notification from
>
Thanks Justin, long-polling sounds like what this is.
The specific problem is having a client receive a single notification from
the server, with as little effort as possible. There is no data involved,
and the event will only happen once. Because of this, I'm looking for
alternatives to more comp
Hi there,
You don't really need to remove duplicates or get the parent in a list
comprehension, maya cmds will deal with it anyways.
The following code is basically the same you suggested, but should be much
faster (way less maya calls).
from maya import cmds
crvs = cmds.ls(typ='nurbsCurve', ni=T
Can you explain a concrete problem you are trying to solve? Without a
concrete problem, I am not sure where this would be specifically useful
over other options.
What this looks like at face-value is a long poll (
http://en.wikipedia.org/wiki/Push_technology). The standard http
communication you o
I’d like to you by you to hear what you think of it.
That’s some literacy excellence, right there. :)
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Hi all,
I’ve made somewhat of a hack that I’d like to you by you to hear what you
think of it.
In a nutshell, sending a request to a web-server is one way; you send, the
server responds. It’s a “pull” relationthip. There’s *no way* to get the
server to send any data to a client without it having
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