neutron/tools/install_venv.py
Hervé Beraud 236a0c4081 Stop to use the __future__ module.
The __future__ module [1] was used in this context to ensure compatibility
between python 2 and python 3.

We previously dropped the support of python 2.7 [2] and now we only support
python 3 so we don't need to continue to use this module and the imports
listed below.

Imports commonly used and their related PEPs:
- `division` is related to PEP 238 [3]
- `print_function` is related to PEP 3105 [4]
- `unicode_literals` is related to PEP 3112 [5]
- `with_statement` is related to PEP 343 [6]
- `absolute_import` is related to PEP 328 [7]

[1] https://docs.python.org/3/library/__future__.html
[2] https://governance.openstack.org/tc/goals/selected/ussuri/drop-py27.html
[3] https://www.python.org/dev/peps/pep-0238
[4] https://www.python.org/dev/peps/pep-3105
[5] https://www.python.org/dev/peps/pep-3112
[6] https://www.python.org/dev/peps/pep-0343
[7] https://www.python.org/dev/peps/pep-0328

Change-Id: Ia7c6b8ba6d3842a19e75fd64f9e56f2cf5f74409
2020-06-04 08:34:47 +00:00

79 lines
2.4 KiB
Python

#!/usr/bin/env python
# Copyright 2010 United States Government as represented by the
# Administrator of the National Aeronautics and Space Administration.
# All Rights Reserved.
#
# Copyright 2010 OpenStack Foundation.
# Copyright 2013 IBM Corp.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
"""
Installation script for Neutron's development virtualenv
"""
import os
import sys
import install_venv_common as install_venv
def print_help():
help = """
Neutron development environment setup is complete.
Neutron development uses virtualenv to track and manage Python dependencies
while in development and testing.
To activate the Neutron virtualenv for the extent of your current shell
session you can run:
$ . .venv/bin/activate
Or, if you prefer, you can run commands in the virtualenv on a case by case
basis by running:
$ tools/with_venv.sh <your command>
Also, make test will automatically use the virtualenv.
"""
print(help)
def main(argv):
if 'tools_path' in os.environ:
root = os.environ['tools_path']
else:
root = os.path.dirname(os.path.dirname(os.path.realpath(__file__)))
if 'venv' in os.environ:
venv = os.environ['venv']
else:
venv = os.path.join(root, '.venv')
pip_requires = os.path.join(root, 'requirements.txt')
test_requires = os.path.join(root, 'test-requirements.txt')
py_version = "python%s.%s" % (sys.version_info[0], sys.version_info[1])
project = 'Neutron'
install = install_venv.InstallVenv(root, venv, pip_requires, test_requires,
py_version, project)
options = install.parse_args(argv)
install.check_python_version()
install.check_dependencies()
install.create_virtualenv(no_site_packages=options.no_site_packages)
install.install_dependencies()
print_help()
if __name__ == '__main__':
main(sys.argv)