from?distutils.command.build_ext?import?build_ext
from?distutils.errors?import?CCompilerError
from?distutils.errors?import?DistutilsExecError
from?distutils.errors?import?DistutilsPlatformError
import?os
import?platform
import?re
import?sys

from?setuptools?import?Distribution?as?_Distribution
from?setuptools?import?Extension
from?setuptools?import?find_packages
from?setuptools?import?setup
from?setuptools.command.test?import?test?as?TestCommand


cmdclass?=?{}
if?sys.version_info?????raise?Exception（“SQLAlchemy?requires?Python?2.7?or?higher.“）

cpython?=?platform.python_implementation（）?==?“CPython“

ext_modules?=?[
????Extension（
????????“sqlalchemy.cprocessors“
????????sources=[“l(fā)ib/sqlalchemy/cextension/processors.c“]
????）
????Extension（
????????“sqlalchemy.cresultproxy“
????????sources=[“l(fā)ib/sqlalchemy/cextension/resultproxy.c“]
????）
????Extension（
????????“sqlalchemy.cutils“?sources=[“l(fā)ib/sqlalchemy/cextension/utils.c“]
????）
]

ext_errors?=?（CCompilerError?DistutilsExecError?DistutilsPlatformError）
if?sys.platform?==?“win32“:
????#?2.6‘s?distutils.msvc9compiler?can?raise?an?IOError?when?failing?to
????#?find?the?compiler
????ext_errors?+=?（IOError）


class?BuildFailed（Exception）:
????def?__init__（self）:
????????self.cause?=?sys.exc_info（）[1]??#?work?around?py?2/3?different?syntax


class?ve_build_ext（build_ext）:
????#?This?class?allows?C?extension?building?to?fail.

????def?run（self）:
????????try:
????????????build_ext.run（self）
????????except?DistutilsPlatformError:
????????????raise?BuildFailed（）

????def?build_extension（self?ext）:
????????try:
????????????build_ext.build_extension（self?ext）
????????except?ext_errors:
????????????raise?BuildFailed（）
????????except?ValueError:
????????????#?this?can?happen?on?Windows?64?bit?see?Python?issue?7511
????????????if?“‘path‘“?in?str（sys.exc_info（）[1]）:??#?works?with?both?py?2/3
????????????????raise?BuildFailed（）
????????????raise


cmdclass[“build_ext“]?=?ve_build_ext


class?Distribution（_Distribution）:
????def?has_ext_modules（self）:
????????#?We?want?to?always?claim?that?we?have?ext_modules.?This?will?be?fine
????????#?if?we?don‘t?actually?have?them?（such?as?on?PyPy）?because?nothing
????????#?will?get?built?however?we?don‘t?want?to?provide?an?overally?broad
????????#?Wheel?package?when?building?a?wheel?without?C?support.?This?will
????????#?ensure?that?Wheel?knows?to?treat?us?as?if?the?build?output?is
????????#?platform?specific.
????????return?True


class?PyTest（TestCommand）:
????#?from?http://pytest.org/latest/goodpractices.html\
????#?#integrating-with-setuptools-python-setup-py-test-pytest-runner
????#?TODO:?prefer?pytest-runner?package?at?some?point?however?it?was
????#?not?working?at?the?time?of?this?comment.
????user_options?=?[（“pytest-args=“?“a“?“Arguments?to?pass?to?py.test“）]

????default_options?=?[“-n“?“4“?“-q“?“--nomemory“]

????def?initialize_options（self）:
????????TestCommand.initialize_options（self）
????????self.pytest_args?=?““

????def?fina