[IPython-dev] Stand-alone kernel uses wrong kernel?

Thomas Kluyver takowl@gmail....
Sat Feb 22 10:11:18 CST 2014


'ipython kernel' is the command to start an IPython kernel. It's not a
wrapper around a kernel process, it is a kernel process. To start your own
kernel, run whatever command you put in kernel_cmd.

Thomas
On 22 Feb 2014 05:52, "Doug Blank" <doug.blank@gmail.com> wrote:

> Bug or user error? If I start up a stand-alone kernel with latest
> IPython-master 2.0.0-dev like so:
>
> """
> $ ipython kernel --profile calico
> NOTE: When using the `ipython kernel` entry point, Ctrl-C will not work.
>
> To exit, you will have to explicitly quit this process, by either sending
> "quit" from a client, or using Ctrl-\ in UNIX-like environments.
>
> To read more about this, see
> https://github.com/ipython/ipython/issues/2049
>
> To connect another client to this kernel, use:
>     --existing kernel-20283.json --profile calico
> """
>
> And then attempt to connect onto it with any frontend:
>
> """
> $ ipython console --existing kernel-20283.json --profile calico
> Python 2.7.5+ (default, Sep 19 2013, 13:48:49)
> Type "copyright", "credits" or "license" for more information.
>
> IPython 2.0.0-dev -- An enhanced Interactive Python.
> ?         -> Introduction and overview of IPython's features.
> %quickref -> Quick reference.
> help      -> Python's own help system.
> object?   -> Details about 'object', use 'object??' for extra details.
>
> IPython profile: calico
>
> In [1]: calico
> ---------------------------------------------------------------------------
> NameError                                 Traceback (most recent call last)
> <ipython-input-1-c2029787b47e> in <module>()
> ----> 1 calico
>
> NameError: name 'calico' is not defined
> """
>
> As can be seen, it is not using the Calico kernel. Everything else seems
> to work great with this config/profile.
>
> """
> $ ipython console --profile calico
> Loading Calico version 2.5.0...
> Python 2.7.5+ (default, Sep 19 2013, 13:48:49)
> Type "copyright", "credits" or "license" for more information.
>
> IPython 2.0.0-dev -- An enhanced Interactive Python.
> ?         -> Introduction and overview of IPython's features.
> %quickref -> Quick reference.
> help      -> Python's own help system.
> object?   -> Details about 'object', use 'object??' for extra details.
>
> IPython profile: calico
>
> In [1]: calico
> Out[1]: <Calico instance, version 2.5.0>
> """
>
> I have just edited the one ipython_config.py as follows:
>
> """
> $ ls -al ~/.ipython/profile_calico/
> total 136
> drwxr-xr-x 8 dblank dblank  4096 Feb 22 08:35 .
> drwxr-xr-x 6 dblank dblank  4096 Feb 21 09:46 ..
> drwxr-xr-x 2 dblank dblank  4096 Feb 21 09:46 db
> -rw-r--r-- 1 dblank dblank  9216 Feb 22 08:35 history.sqlite
> -rw-r--r-- 1 dblank dblank   485 Feb 21 13:55 ipython_config.py
> -rw-r--r-- 1 dblank dblank 31535 Feb 21 10:18 ipython_nbconvert_config.py
> -rw-r--r-- 1 dblank dblank 23317 Feb 21 10:18 ipython_notebook_config.py
> -rw-r--r-- 1 dblank dblank 24577 Feb 21 10:18 ipython_qtconsole_config.py
> drwxr-xr-x 2 dblank dblank  4096 Feb 21 09:46 log
> drwx------ 2 dblank dblank  4096 Feb 21 09:46 pid
> drwx------ 2 dblank dblank  4096 Feb 22 08:34 security
> drwxr-xr-x 2 dblank dblank  4096 Feb 21 13:55 startup
> drwxr-xr-x 3 dblank dblank  4096 Feb 21 09:46 static
> dblank@vaio:~/Calico$ cat ~/.ipython/profile_calico/ipython_config.py
> # Configuration file for ipython.
>
> c = get_config()
> c.KernelManager.kernel_cmd = [
>       'mono', '/home/dblank/Calico/bin/Calico.exe',
>      '--server', '{connection_file}']
> """
>
> And the JSON connection file looks fine:
>
> """
> $ cat ~/.ipython/profile_calico/security/kernel-20283.json
> {
>   "stdin_port": 56854,
>   "ip": "127.0.0.1",
>   "control_port": 50139,
>   "hb_port": 35067,
>   "signature_scheme": "hmac-sha256",
>   "key": "...",
>   "shell_port": 59556,
>   "transport": "tcp",
>   "iopub_port": 52203
> }
> """
>
> Am I using the kernel subcommand incorrectly, or just that there is a bug
> in selecting the kernel?
>
> -Doug
>
> _______________________________________________
> IPython-dev mailing list
> IPython-dev@scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mail.scipy.org/pipermail/ipython-dev/attachments/20140222/5359390b/attachment-0001.html 


More information about the IPython-dev mailing list