[IPython-dev] IPython 0.11.rc1 as a built-in shell for a GUI

[Brian Granger]

Hugo,

Unfortunately, the APIs you are using have been completely refactored
and IPython has a very different design in these areas.  I suggest
looking at the app code here as a starting point:

https://github.com/ipython/ipython/blob/master/IPython/frontend/terminal/ipapp.py

But you are going to have to spend some time becoming familiar with
the IPython internals...

Cheers,

Brian

On Mon, Jul 18, 2011 at 9:12 AM, Hugo Gagnon
<sourceforge.ipython at user.fastmail.fm> wrote:
> Hello,
>
> In the past I've been using 0.10 as a built-in shell for my small GUI.
> When I first implemented it I remember taking most of the code from your
> cookbook. However my GUI now fails miserably at the very first line with
> 0.11.rc1. I don't have the time to go through your doc (and quite
> frankly I'm not an expert programmer) and I would appreciate if someone
> could help me port my code so that it works with 0.11. Here it is:
>
> import StringIO
> import os
> import re
> import subprocess
> import sys
>
> import IPython
>
>
> class Shell(object):
>
>    def __init__(self, input_func, user_ns, user_global_ns):
>        if '__builtins__' in user_ns: # this fixes a bug in IPython
>            del user_ns['__builtins__']
>        self.IP = IPython.Shell.make_IPython(argv=[],
>                                             user_ns=user_ns,
>                                             user_global_ns=user_global_ns,
>                                             embedded=True,
>                                             shell_class=IPython.Shell.InteractiveShell)
>        self.IP.set_hook('shell_hook', self.shell_hook)
>
>        self.out = StringIO.StringIO()
>        IPython.iplib.raw_input_original = input_func
>        IPython.genutils.Term.cout = self.out
>        IPython.genutils.Term.cerr = self.out
>        os.environ['TERM'] = 'dumb'
>
>        self.ip = IPython.ipapi.get()
>        self.ip.magic('colors NoColor')
>
>        self.iter_more = 0
>        self.prompt = str(self.IP.outputcache.prompt1)
>        self.complete_sep = re.compile('[\s\{\}\[\]\(\)\=]')
>
>    def execute(self):
>        orig_stdout = sys.stdout
>        sys.stdout = IPython.Shell.Term.cout
>        line = self.IP.raw_input(continue_prompt=self.iter_more)
>        self.iter_more = self.IP.push(line)
>        if self.iter_more:
>            self.prompt = str(self.IP.outputcache.prompt2)
>        else:
>            self.prompt = str(self.IP.outputcache.prompt1)
>        out = self.out.getvalue().strip()
>        self.out.truncate(0)
>        sys.stdout = orig_stdout
>        return out
>
>    def complete(self, line):
>        split_line = self.complete_sep.split(line)
>        possibilities = self.IP.complete(split_line[-1])
>        if possibilities:
>            common_prefix = os.path.commonprefix(possibilities)
>            completed = line[:-len(split_line[-1])] + common_prefix
>        else:
>            completed = line
>        return completed, possibilities
>
>    def shell_hook(self, IP, cmd):
>        p = subprocess.Popen(cmd, shell=True,
>                             stdout=subprocess.PIPE,
>                             stderr=subprocess.STDOUT)
>        out = p.stdout
>        print out.read()
>        out.close()
>
> Your time is very much appreciated,
> --
>  Hugo Gagnon
> _______________________________________________
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> IPython-dev at scipy.org
> http://mail.scipy.org/mailman/listinfo/ipython-dev
>



-- 
Brian E. Granger
Cal Poly State University, San Luis Obispo
bgranger at calpoly.edu and ellisonbg at gmail.com