core-admin/qubes/tests/tools/__init__.py

#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2015  Marek Marczykowski-Górecki
#                                       <marmarek@invisiblethingslab.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, see <https://www.gnu.org/licenses/>.
#


import io
import sys

class StdoutBuffer(object):
    def __init__(self):
        self.stdout = io.StringIO()

    def __enter__(self):
        sys.stdout = self.stdout
        return self.stdout

    def __exit__(self, exc_type, exc_val, exc_tb):
        sys.stdout = sys.__stdout__
        return False