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# Copyright 2014-2015 Canonical Limited.
#
# This file is part of charm-helpers.
#
# charm-helpers is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License version 3 as
# published by the Free Software Foundation.
#
# charm-helpers 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 charm-helpers.  If not, see <http://www.gnu.org/licenses/>.

# Bootstrap charm-helpers, installing its dependencies if necessary using
# only standard libraries.
import subprocess
import sys

try:
    import six  # flake8: noqa
except ImportError:
    if sys.version_info.major == 2:
        subprocess.check_call(['apt-get', 'install', '-y', 'python-six'])
    else:
        subprocess.check_call(['apt-get', 'install', '-y', 'python3-six'])
    import six  # flake8: noqa

try:
    import yaml  # flake8: noqa
except ImportError:
    if sys.version_info.major == 2:
        subprocess.check_call(['apt-get', 'install', '-y', 'python-yaml'])
    else:
        subprocess.check_call(['apt-get', 'install', '-y', 'python3-yaml'])
    import yaml  # flake8: noqa