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#!/usr/bin/env python
# Copyright 2009 Facebook
# 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
# 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.
import os
import platform
import sys
import warnings
# Use setuptools if available, for install_requires (among other things).
import setuptools
from setuptools import setup
except ImportError:
setuptools = None
from distutils.core import setup
from distutils.core import Extension
# The following code is copied from
# to support installing without the extension on platforms where
# no compiler is available.
from distutils.command.build_ext import build_ext
class custom_build_ext(build_ext):
"""Allow C extension building to fail.
The C extension speeds up websocket masking, but is not essential.
warning_message = """
WARNING: %s could not
be compiled. No C extensions are essential for Tornado to run,
although they do result in significant speed improvements for
Here are some hints for popular operating systems:
If you are seeing this message on Linux you probably need to
install GCC and/or the Python development package for your
version of Python.
Debian and Ubuntu users should issue the following command:
$ sudo apt-get install build-essential python-dev
RedHat, CentOS, and Fedora users should issue the following command:
$ sudo yum install gcc python-devel
If you are seeing this message on OSX please read the documentation
def run(self):
except Exception:
e = sys.exc_info()[1]
sys.stdout.write('%s\n' % str(e))
warnings.warn(self.warning_message % ("Extension modules",
"There was an issue with "
"your platform configuration"
" - see above."))
def build_extension(self, ext):
name =
build_ext.build_extension(self, ext)
except Exception:
e = sys.exc_info()[1]
sys.stdout.write('%s\n' % str(e))
warnings.warn(self.warning_message % ("The %s extension "
"module" % (name,),
"The output above "
"this warning shows how "
"the compilation "
kwargs = {}
version = "4.4.dev1"
with open('README.rst') as f:
kwargs['long_description'] =
if (platform.python_implementation() == 'CPython' and
os.environ.get('TORNADO_EXTENSION') != '0'):
# This extension builds and works on pypy as well, although pypy's jit
# produces equivalent performance.
kwargs['ext_modules'] = [
if os.environ.get('TORNADO_EXTENSION') != '1':
# Unless the user has specified that the extension is mandatory,
# fall back to the pure-python implementation on any build failure.
kwargs['cmdclass'] = {'build_ext': custom_build_ext}
if setuptools is not None:
# If setuptools is not available, you're on your own for dependencies.
install_requires = []
if sys.version_info < (2, 7):
# Only needed indirectly, for singledispatch.
if sys.version_info < (3, 2):
if sys.version_info < (3, 4):
# Certifi is also optional on 2.7.9+, although making our dependencies
# conditional on micro version numbers seems like a bad idea
# until we have more declarative metadata.
if sys.version_info < (3, 5):
kwargs['install_requires'] = install_requires
packages=["tornado", "tornado.test", "tornado.platform"],
# data files need to be listed both here (which determines what gets
# installed) and in (which determines what gets included
# in the sdist tarball)
"tornado.test": [
description="Tornado is a Python web framework and asynchronous networking library, originally developed at FriendFeed.",
'License :: OSI Approved :: Apache Software License',
'Programming Language :: Python :: 2',
'Programming Language :: Python :: 2.7',
'Programming Language :: Python :: 3',
'Programming Language :: Python :: 3.3',
'Programming Language :: Python :: 3.4',
'Programming Language :: Python :: Implementation :: CPython',
'Programming Language :: Python :: Implementation :: PyPy',