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authorBarry Warsaw2008-02-27 01:26:18 -0500
committerBarry Warsaw2008-02-27 01:26:18 -0500
commita1c73f6c305c7f74987d99855ba59d8fa823c253 (patch)
tree65696889450862357c9e05c8e9a589f1bdc074ac /Mailman/interact.py
parent3f31f8cce369529d177cfb5a7c66346ec1e12130 (diff)
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-# Copyright (C) 2006-2008 by the Free Software Foundation, Inc.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
-# USA.
-
-"""Provide an interactive prompt, mimicking the Python interpreter."""
-
-import os
-import sys
-import code
-
-DEFAULT_BANNER = object()
-
-
-
-def interact(upframe=True, banner=DEFAULT_BANNER, overrides=None):
- # The interactive prompt's namespace
- ns = dict()
- # If uplocals is true, also populate the console's locals with the locals
- # of the frame that called this function (i.e. one up from here).
- if upframe:
- frame = sys._getframe(1)
- ns.update(frame.f_globals)
- ns.update(frame.f_locals)
- if overrides is not None:
- ns.update(overrides)
- interp = code.InteractiveConsole(ns)
- # Try to import the readline module, but don't worry if it's unavailable
- try:
- import readline
- except ImportError:
- pass
- # Mimic the real interactive interpreter's loading of any $PYTHONSTARTUP
- # file. Note that if the startup file is not prepared to be exec'd more
- # than once, this could cause a problem.
- startup = os.environ.get('PYTHONSTARTUP')
- if startup:
- try:
- execfile(startup, ns)
- except:
- pass
- # We don't want the funky console object in parentheses in the banner.
- if banner is DEFAULT_BANNER:
- banner = '''\
-Python %s on %s
-Type "help", "copyright", "credits" or "license" for more information.''' % (
- sys.version, sys.platform)
- elif not banner:
- banner = None
- interp.interact(banner)
- # When an exception occurs in the InteractiveConsole, the various
- # sys.exc_* attributes get set so that error handling works the same way
- # there as it does in the built-in interpreter. Be anal about clearing
- # any exception information before we're done.
- sys.exc_clear()
- sys.last_type = sys.last_value = sys.last_traceback = None