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

[Hugo Gagnon]

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