setup: use pip10 compatible setup code.

setup.py

@@ -1,132 +1,139 b''
 # -*- coding: utf-8 -*-
 # RhodeCode VCSServer provides access to different vcs backends via network.
 # Copyright (C) 2014-2017 RodeCode GmbH
 #
 # 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 3 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
 
 # Import early to make sure things are patched up properly
 from setuptools import setup, find_packages
 
 import os
 import sys
 import pkgutil
 import platform
+import codecs
 
-from pip.download import PipSession
-from pip.req import parse_requirements
+try:  # for pip >= 10
+    from pip._internal.req import parse_requirements
+except ImportError:  # for pip <= 9.0.3
+    from pip.req import parse_requirements
 
-from codecs import open
+try:  # for pip >= 10
+    from pip._internal.download import PipSession
+except ImportError:  # for pip <= 9.0.3
+    from pip.download import PipSession
+
 
 
 if sys.version_info < (2, 7):
     raise Exception('VCSServer requires Python 2.7 or later')
 
 here = os.path.abspath(os.path.dirname(__file__))
 
 # defines current platform
 __platform__ = platform.system()
 __license__ = 'GPL V3'
 __author__ = 'RhodeCode GmbH'
 __url__ = 'https://code.rhodecode.com'
 is_windows = __platform__ in ('Windows',)
 
 
 def _get_requirements(req_filename, exclude=None, extras=None):
     extras = extras or []
     exclude = exclude or []
 
     try:
         parsed = parse_requirements(
             os.path.join(here, req_filename), session=PipSession())
     except TypeError:
         # try pip < 6.0.0, that doesn't support session
         parsed = parse_requirements(os.path.join(here, req_filename))
 
     requirements = []
     for ir in parsed:
         if ir.req and ir.name not in exclude:
             requirements.append(str(ir.req))
     return requirements + extras
 
 
 # requirements extract
 setup_requirements = ['pytest-runner']
 install_requirements = _get_requirements(
     'requirements.txt', exclude=['setuptools'])
 test_requirements = _get_requirements(
     'requirements_test.txt', extras=['configobj'])
 
 
 def get_version():
     version = pkgutil.get_data('vcsserver', 'VERSION')
     return version.strip()
 
 
 # additional files that goes into package itself
 package_data = {
     '': ['*.txt', '*.rst'],
     'configs': ['*.ini'],
     'vcsserver': ['VERSION'],
 }
 
 description = 'Version Control System Server'
 keywords = ' '.join([
     'CLI', 'RhodeCode', 'RhodeCode Enterprise', 'RhodeCode Tools'])
 
 # README/DESCRIPTION generation
 readme_file = 'README.rst'
 changelog_file = 'CHANGES.rst'
 try:
-    long_description = open(readme_file).read() + '\n\n' + \
-        open(changelog_file).read()
+    long_description = codecs.open(readme_file).read() + '\n\n' + \
+                       codecs.open(changelog_file).read()
 except IOError as err:
     sys.stderr.write(
         "[WARNING] Cannot find file specified as long_description (%s)\n "
         "or changelog (%s) skipping that file" % (readme_file, changelog_file))
     long_description = description
 
 
 setup(
     name='rhodecode-vcsserver',
     version=get_version(),
     description=description,
     long_description=long_description,
     keywords=keywords,
     license=__license__,
     author=__author__,
     author_email='[e-mail]',
     url=__url__,
     setup_requires=setup_requirements,
     install_requires=install_requirements,
     tests_require=test_requirements,
     zip_safe=False,
     packages=find_packages(exclude=["docs", "tests*"]),
     package_data=package_data,
     include_package_data=True,
     classifiers=[
         'Development Status :: 6 - Mature',
         'Intended Audience :: Developers',
         'Operating System :: OS Independent',
         'Topic :: Software Development :: Version Control',
         'License :: OSI Approved :: GNU General Public License v3 or later (GPLv3+)',
         'Programming Language :: Python :: 2.7',
     ],
     entry_points={
         'console_scripts': [
             'vcsserver=vcsserver.main:main',
         ],
         'paste.app_factory': ['main=vcsserver.http_main:main']
     },
 )