64位win7环境下进行Scrapy安装

此文出现的所有软件可在文章最后链接进行下载。
1、从 http://python.org/download/ 上安装Python;

    scrapy官网上明确写出：requirements:Python 2.5, 2.6, 2.7 (3.x is not yet supported), 即目前只支持python2.5,2.6,2.7.3以上版本的python还不支持，而且Python2.7系列适合新手。另外，因为ActiveState 制作的ActivePython 是专门针对 Windows 的 Python 套件，它包含了一个完整的 Python 发布、一个适用于 Python 编程的 IDE 以及一些 Python 的 Windows 扩展，提供了全部的访问 WindowsAPIs 的服务，以及 Windows 注册表的注册信息。 虽然ActivePython 不是开源软件，但它可以自由下载，它也是python，没有什么不同。故此本人推荐安装ActivePython，下载地址，http://www.activestate.com/Products/ActivePython/
     在命令行使用python –version查看python版本，出现信息即安装正确，将你安装的路径D:\python27\和D:\python27\Scripts\添加到环境变量中。

2、从 http://sourceforge.net/projects/pywin32/ 安装 pywin32

    请确认下载符合您系统的版本(win32或者amd64)
3、从 https://pip.pypa.io/en/latest/installing.html 安装pip

    在命令行使用pip –version确认pip被正确安装。
    pip is already installed if you’re using Python 2 >=2.7.9 or Python 3 >=3.4 binaries downloaded from python.org, but you’ll need to upgrade pip.
    在window下更新pip: 命令行下输入python -m pip install -U pip

4、接下来步骤按照这篇文章http://blog.csdn.net/wukaibo1986/article/details/8167590 进行操作，因为这篇文章是按照32位进行操作，所以我下面列出32位和64位安装的不同：
    1）第一步安装python这里是相同的，选择64位版本即可。
     接下来是安装twisted的准备工作。
    2）第二步安装setuptools。这里32位的setuptools在64位环境下也是可以使用的。因为在windows64位下是没有setuptools的exe文件，只能通过文件命令安装。将下面的代码复制，存储为ez_setup.py文件，存储到python根目录下：

#!/usr/bin/env python

"""
Setuptools bootstrapping installer.

Maintained at https://github.com/pypa/setuptools/tree/bootstrap.

Run this script to install or upgrade setuptools.
"""

import os
import shutil
import sys
import tempfile
import zipfile
import optparse
import subprocess
import platform
import textwrap
import contextlib
import json
import codecs

from distutils import log

try:
    from urllib.request import urlopen
    from urllib.parse import urljoin
except ImportError:
    from urllib2 import urlopen
    from urlparse import urljoin

try:
    from site import USER_SITE
except ImportError:
    USER_SITE = None

LATEST = object()
DEFAULT_VERSION = LATEST
DEFAULT_URL = "https://pypi.io/packages/source/s/setuptools/"
DEFAULT_SAVE_DIR = os.curdir

MEANINGFUL_INVALID_ZIP_ERR_MSG = 'Maybe {0} is corrupted, delete it and try again.'


def _python_cmd(*args):
    """
    Execute a command.

    Return True if the command succeeded.
    """
    args = (sys.executable,) + args
    return subprocess.call(args) == 0


def _install(archive_filename, install_args=()):
    """Install Setuptools."""
    with archive_context(archive_filename):
        # installing
        log.warn('Installing Setuptools')
        if not _python_cmd('setup.py', 'install', *install_args):
            log.warn('Something went wrong during the installation.')
            log.warn('See the error message above.')
            # exitcode will be 2
            return 2


def _build_egg(egg, archive_filename, to_dir):
    """Build Setuptools egg."""
    with archive_context(archive_filename):
        # building an egg
        log.warn('Building a Setuptools egg in %s', to_dir)
        _python_cmd('setup.py', '-q', 'bdist_egg', '--dist-dir', to_dir)
    # returning the result
    log.warn(egg)
    if not os.path.exists(egg):
        raise IOError('Could not build the egg.')


class ContextualZipFile(zipfile.ZipFile):

    """Supplement ZipFile class to support context manager for Python 2.6."""

    def __enter__(self):
        return self

    def __exit__(self, type, value, traceback):
        self.close()

    def __new__(cls, *args, **kwargs):
        """Construct a ZipFile or ContextualZipFile as appropriate."""
        if hasattr(zipfile.ZipFile, '__exit__'):
            return zipfile.ZipFile(*args, **kwargs)
        return super(ContextualZipFile, cls).__new__(cls)


@contextlib.contextmanager
def archive_context(filename):
    """
    Unzip filename to a temporary directory, set to the cwd.

    The unzipped target is cleaned up after.
    """
    tmpdir = tempfile.mkdtemp()
    log.warn('Extracting in %s', tmpdir)
    old_wd = os.getcwd()
    try:
        os.chdir(tmpdir)
        try:
            with ContextualZipFile(filename) as archive:
                archive.extractall()
        except zipfile.BadZipfile as err:
            if not err.args:
                err.args = ('', )
            err.args = err.args + (
                MEANINGFUL_INVALID_ZIP_ERR_MSG.format(filename),
            )
            raise

        # going in the directory
        subdir = os.path.join(tmpdir, os.listdir(tmpdir)[0])
        os.chdir(subdir)
        log.warn('Now working in %s', subdir)
        yield

    finally:
        os.chdir(old_wd)
        shutil.rmtree(tmpdir)


def _do_download(version, download_base, to_dir, download_delay):
    """Download Setuptools."""
    py_desig = 'py{sys.version_info[0]}.{sys.version_info[1]}'.format(sys=sys)
    tp = 'setuptools-{version}-{py_desig}.egg'
    egg = os.path.join(to_dir, tp.format(**locals()))
    if not os.path.exists(egg):
        archive = download_setuptools(version, download_base,
            to_dir, download_delay)
        _build_egg(egg, archive, to_dir)
    sys.path.insert(0, egg)

    # Remove previously-imported pkg_resources if present (see
    # https://bitbucket.org/pypa/setuptools/pull-request/7/ for details).
    if 'pkg_resources' in sys.modules:
        _unload_pkg_resources()

    import setuptools
    setuptools.bootstrap_install_from = egg


def use_setuptools(
        version=DEFAULT_VERSION, download_base=DEFAULT_URL,
        to_dir=DEFAULT_SAVE_DIR, download_delay=15):
    """
    Ensure that a setuptools version is installed.

    Return None. Raise SystemExit if the requested version
    or later cannot be installed.
    """
    version = _resolve_version(version)
    to_dir = os.path.abspath(to_dir)

    # prior to importing, capture the module state for
    # representative modules.
    rep_modules = 'pkg_resources', 'setuptools'
    imported = set(sys.modules).intersection(rep_modules)

    try:
        import pkg_resources
        pkg_resources.require("setuptools>=" + version)
        # a suitable version is already installed
        return
    except ImportError:
        # pkg_resources not available; setuptools is not installed; download
        pass
    except pkg_resources.DistributionNotFound:
        # no version of setuptools was found; allow download
        pass
    except pkg_resources.VersionConflict as VC_err:
        if imported:
            _conflict_bail(VC_err, version)

        # otherwise, unload pkg_resources to allow the downloaded version to
        #  take precedence.
        del pkg_resources
        _unload_pkg_resources()

    return _do_download(version, download_base, to_dir, download_delay)


def _conflict_bail(VC_err, version):
    """
    Setuptools was imported prior to invocation, so it is
    unsafe to unload it. Bail out.
    """
    conflict_tmpl = textwrap.dedent("""
        The required version of setuptools (>={version}) is not available,
        and can't be installed while this script is running. Please
        install a more recent version first, using
        'easy_install -U setuptools'.

        (Currently using {VC_err.args[0]!r})
        """)
    msg = conflict_tmpl.format(**locals())
    sys.stderr.write(msg)
    sys.exit(2)


def _unload_pkg_resources():
    sys.meta_path = [
        importer
        for importer in sys.meta_path
        if importer.__class__.__module__ != 'pkg_resources.extern'
    ]
    del_modules = [
        name for name in sys.modules
        if name.startswith('pkg_resources')
    ]
    for mod_name in del_modules:
        del sys.modules[mod_name]


def _clean_check(cmd, target):
    """
    Run the command to download target.

    If the command fails, clean up before re-raising the error.
    """
    try:
        subprocess.check_call(cmd)
    except subprocess.CalledProcessError:
        if os.access(target, os.F_OK):
            os.unlink(target)
        raise


def download_file_powershell(url, target):
    """
    Download the file at url to target using Powershell.

    Powershell will validate trust.
    Raise an exception if the command cannot complete.
    """
    target = os.path.abspath(target)
    ps_cmd = (
        "[System.Net.WebRequest]::DefaultWebProxy.Credentials = "
        "[System.Net.CredentialCache]::DefaultCredentials; "
        '(new-object System.Net.WebClient).DownloadFile("%(url)s", "%(target)s")'
        % locals()
    )
    cmd = [
        'powershell',
        '-Command',
        ps_cmd,
    ]
    _clean_check(cmd, target)


def has_powershell():
    """Determine if Powershell is available."""
    if platform.system() != 'Windows':
        return False
    cmd = ['powershell', '-Command', 'echo test']
    with open(os.path.devnull, 'wb') as devnull:
        try:
            subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
        except Exception:
            return False
    return True
download_file_powershell.viable = has_powershell


def download_file_curl(url, target):
    cmd = ['curl', url, '--location', '--silent', '--output', target]
    _clean_check(cmd, target)


def has_curl():
    cmd = ['curl', '--version']
    with open(os.path.devnull, 'wb') as devnull:
        try:
            subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
        except Exception:
            return False
    return True
download_file_curl.viable = has_curl


def download_file_wget(url, target):
    cmd = ['wget', url, '--quiet', '--output-document', target]
    _clean_check(cmd, target)


def has_wget():
    cmd = ['wget', '--version']
    with open(os.path.devnull, 'wb') as devnull:
        try:
            subprocess.check_call(cmd, stdout=devnull, stderr=devnull)
        except Exception:
            return False
    return True
download_file_wget.viable = has_wget


def download_file_insecure(url, target):
    """Use Python to download the file, without connection authentication."""
    src = urlopen(url)
    try:
        # Read all the data in one block.
        data = src.read()
    finally:
        src.close()

    # Write all the data in one block to avoid creating a partial file.
    with open(target, "wb") as dst:
        dst.write(data)
download_file_insecure.viable = lambda: True


def get_best_downloader():
    downloaders = (
        download_file_powershell,
        download_file_curl,
        download_file_wget,
        download_file_insecure,
    )
    viable_downloaders = (dl for dl in downloaders if dl.viable())
    return next(viable_downloaders, None)


def download_setuptools(
        version=DEFAULT_VERSION, download_base=DEFAULT_URL,
        to_dir=DEFAULT_SAVE_DIR, delay=15,
        downloader_factory=get_best_downloader):
    """
    Download setuptools from a specified location and return its filename.

    `version` should be a valid setuptools version number that is available
    as an sdist for download under the `download_base` URL (which should end
    with a '/'). `to_dir` is the directory where the egg will be downloaded.
    `delay` is the number of seconds to pause before an actual download
    attempt.

    ``downloader_factory`` should be a function taking no arguments and
    returning a function for downloading a URL to a target.
    """
    version = _resolve_version(version)
    # making sure we use the absolute path
    to_dir = os.path.abspath(to_dir)
    zip_name = "setuptools-%s.zip" % version
    url = download_base + zip_name
    saveto = os.path.join(to_dir, zip_name)
    if not os.path.exists(saveto):  # Avoid repeated downloads
        log.warn("Downloading %s", url)
        downloader = downloader_factory()
        downloader(url, saveto)
    return os.path.realpath(saveto)


def _resolve_version(version):
    """
    Resolve LATEST version
    """
    if version is not LATEST:
        return version

    meta_url = urljoin(DEFAULT_URL, '/pypi/setuptools/json')
    resp = urlopen(meta_url)
    with contextlib.closing(resp):
        try:
            charset = resp.info().get_content_charset()
        except Exception:
            # Python 2 compat; assume UTF-8
            charset = 'UTF-8'
        reader = codecs.getreader(charset)
        doc = json.load(reader(resp))

    return str(doc['info']['version'])


def _build_install_args(options):
    """
    Build the arguments to 'python setup.py install' on the setuptools package.

    Returns list of command line arguments.
    """
    return ['--user'] if options.user_install else []


def _parse_args():
    """Parse the command line for options."""
    parser = optparse.OptionParser()
    parser.add_option(
        '--user', dest='user_install', action='store_true', default=False,
        help='install in user site package')
    parser.add_option(
        '--download-base', dest='download_base', metavar="URL",
        default=DEFAULT_URL,
        help='alternative URL from where to download the setuptools package')
    parser.add_option(
        '--insecure', dest='downloader_factory', action='store_const',
        const=lambda: download_file_insecure, default=get_best_downloader,
        help='Use internal, non-validating downloader'
    )
    parser.add_option(
        '--version', help="Specify which version to download",
        default=DEFAULT_VERSION,
    )
    parser.add_option(
        '--to-dir',
        help="Directory to save (and re-use) package",
        default=DEFAULT_SAVE_DIR,
    )
    options, args = parser.parse_args()
    # positional arguments are ignored
    return options


def _download_args(options):
    """Return args for download_setuptools function from cmdline args."""
    return dict(
        version=options.version,
        download_base=options.download_base,
        downloader_factory=options.downloader_factory,
        to_dir=options.to_dir,
    )


def main():
    """Install or upgrade setuptools and EasyInstall."""
    options = _parse_args()
    archive = download_setuptools(**_download_args(options))
    return _install(archive, _build_install_args(options))

if __name__ == '__main__':
    sys.exit(main())

在命令行下进入python根目录，输入python ez_setup.py命令进行安装。如果还是不行，使用32位的也是可以的。
    3）第三步安装zope_interface。可以使用我链接里的zope.interface-3.8.0-py2.7-win-amd64.egg软件安装。将它拷贝到python27\Scripts目录下，安装命令和检测命令和文章里一样。
    4）安装pyOpenSSL。可以使用我链接里的pyOpenSSL-0.13.1.win-amd64-py2.7.exe软件，将它拷贝到python27\Scripts目录下，因为是exe程序，可以直接双击安装。检测命令和文章中一样。
    5）安装twisted。可以使用我链接里的Twisted-11.1.0.win-amd64-py2.7.exe程序直接双击安装。如果选择64位版本，但是运行exe程序后，出现python version 2.7 required,which was not found in the registry，说明python下载后未注册。将下列代码保存为reg.py文件，存储在python根目录下：

#
# script to register Python 2.0 or later for use with win32all
# and other extensions that require Python registry settings
#
# written by Joakim Loew for Secret Labs AB / PythonWare
#
# source:
# http://www.pythonware.com/products/works/articles/regpy20.htm
#
# modified by Valentine Gogichashvili as described in http://www.mail-archive.com/[email protected]/msg10512.html

import sys

from _winreg import *

# tweak as necessary
version = sys.version[:3]
installpath = sys.prefix

regpath = "SOFTWARE\\Python\\Pythoncore\\%s\\" % (version)
installkey = "InstallPath"
pythonkey = "PythonPath"
pythonpath = "%s;%s\\Lib\\;%s\\DLLs\\" % (
    installpath, installpath, installpath
)

def RegisterPy():
    try:
        reg = OpenKey(HKEY_CURRENT_USER, regpath)
    except EnvironmentError as e:
        try:
            reg = CreateKey(HKEY_CURRENT_USER, regpath)
            SetValue(reg, installkey, REG_SZ, installpath)
            SetValue(reg, pythonkey, REG_SZ, pythonpath)
            CloseKey(reg)
        except:
            print "*** Unable to register!"
            return
        print "--- Python", version, "is now registered!"
        return
    if (QueryValue(reg, installkey) == installpath and
        QueryValue(reg, pythonkey) == pythonpath):
        CloseKey(reg)
        print "=== Python", version, "is already registered!"
        return
    CloseKey(reg)
    print "*** Unable to register!"
    print "*** You probably have another Python installation!"

if __name__ == "__main__":
    RegisterPy()

然后在命令行下进入根目录，输入：

python reg.py

在此运行64位twisted程序就可以了。
    6）安装lxml。文章里的链接只有32位的，使用我链接里的lxml-3.6.4-cp27-cp27m-win_amd64.whl程序，将它拷贝到python27\Scripts目录下，然后命令行下进入Scripts目录，输入
pip install lxml-3.6.4-cp27-cp27m-win_amd64.whl
即可。检测命令在python shell中输入

import lxml

没有出现异常即可。
    7）在安装scrapy之前，安装我的链接里的VCForPython27.msi，双击即可（我也不知道为什么，反正第一次没安就错了）
    8）安装scrapy。有三种方法可供选择：
第一：使用easy_install scrapy命令安装；
第二：下载scrapy安装包，这个没试过,在文章链接的官网中下载.whl文件后，进入文件夹

pip install scrapy的.whl文件名

进行安装;
第三：使用pip install scrapy命令安装。
都是在命令行下。

5、在命令行下输入scrapy，如果没有出现scrapy信息说明安装错误。

软件链接：
1、这是Python和ActivePython的安装程序链接：http://download.csdn.net/detail/hicheney/9702425
2、这是pywin,setuptools,zope_interface,pyOpenSSL,lxml的安装程序链接：http://download.csdn.net/detail/hicheney/9702421
3、由于VCForPython27太大，大家私信我，发给你吧。