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Python27安装pip(easy_install方式)

Python27安装pip(easy_install方式)

作者: 道书简 | 来源:发表于2019-08-02 09:46 被阅读0次
    • 打开网页将ez_setup.py文件内容保存下来,或者复制下边的代码另存为ez_setup.py。
    • 安装setuptools
      python ez_setup.py
    • 更新setuptools
      python ez_setup.py -U setuptools
    • 安装pip
      easy_install pip
    • 将C:\Python27\Scripts 配置到环境变量
    #!python
    """Bootstrap setuptools installation
    
    If you want to use setuptools in your package's setup.py, just include this
    file in the same directory with it, and add this to the top of your setup.py::
    
        from ez_setup import use_setuptools
        use_setuptools()
    
    If you want to require a specific version of setuptools, set a download
    mirror, or use an alternate download directory, you can do so by supplying
    the appropriate options to ``use_setuptools()``.
    
    This file can also be run as a script to install or upgrade setuptools.
    """
    import sys
    DEFAULT_VERSION = "0.6c11"
    DEFAULT_URL     = "http://pypi.python.org/packages/%s/s/setuptools/" % sys.version[:3]
    
    md5_data = {
        'setuptools-0.6b1-py2.3.egg': '8822caf901250d848b996b7f25c6e6ca',
        'setuptools-0.6b1-py2.4.egg': 'b79a8a403e4502fbb85ee3f1941735cb',
        'setuptools-0.6b2-py2.3.egg': '5657759d8a6d8fc44070a9d07272d99b',
        'setuptools-0.6b2-py2.4.egg': '4996a8d169d2be661fa32a6e52e4f82a',
        'setuptools-0.6b3-py2.3.egg': 'bb31c0fc7399a63579975cad9f5a0618',
        'setuptools-0.6b3-py2.4.egg': '38a8c6b3d6ecd22247f179f7da669fac',
        'setuptools-0.6b4-py2.3.egg': '62045a24ed4e1ebc77fe039aa4e6f7e5',
        'setuptools-0.6b4-py2.4.egg': '4cb2a185d228dacffb2d17f103b3b1c4',
        'setuptools-0.6c1-py2.3.egg': 'b3f2b5539d65cb7f74ad79127f1a908c',
        'setuptools-0.6c1-py2.4.egg': 'b45adeda0667d2d2ffe14009364f2a4b',
        'setuptools-0.6c10-py2.3.egg': 'ce1e2ab5d3a0256456d9fc13800a7090',
        'setuptools-0.6c10-py2.4.egg': '57d6d9d6e9b80772c59a53a8433a5dd4',
        'setuptools-0.6c10-py2.5.egg': 'de46ac8b1c97c895572e5e8596aeb8c7',
        'setuptools-0.6c10-py2.6.egg': '58ea40aef06da02ce641495523a0b7f5',
        'setuptools-0.6c11-py2.3.egg': '2baeac6e13d414a9d28e7ba5b5a596de',
        'setuptools-0.6c11-py2.4.egg': 'bd639f9b0eac4c42497034dec2ec0c2b',
        'setuptools-0.6c11-py2.5.egg': '64c94f3bf7a72a13ec83e0b24f2749b2',
        'setuptools-0.6c11-py2.6.egg': 'bfa92100bd772d5a213eedd356d64086',
        'setuptools-0.6c2-py2.3.egg': 'f0064bf6aa2b7d0f3ba0b43f20817c27',
        'setuptools-0.6c2-py2.4.egg': '616192eec35f47e8ea16cd6a122b7277',
        'setuptools-0.6c3-py2.3.egg': 'f181fa125dfe85a259c9cd6f1d7b78fa',
        'setuptools-0.6c3-py2.4.egg': 'e0ed74682c998bfb73bf803a50e7b71e',
        'setuptools-0.6c3-py2.5.egg': 'abef16fdd61955514841c7c6bd98965e',
        'setuptools-0.6c4-py2.3.egg': 'b0b9131acab32022bfac7f44c5d7971f',
        'setuptools-0.6c4-py2.4.egg': '2a1f9656d4fbf3c97bf946c0a124e6e2',
        'setuptools-0.6c4-py2.5.egg': '8f5a052e32cdb9c72bcf4b5526f28afc',
        'setuptools-0.6c5-py2.3.egg': 'ee9fd80965da04f2f3e6b3576e9d8167',
        'setuptools-0.6c5-py2.4.egg': 'afe2adf1c01701ee841761f5bcd8aa64',
        'setuptools-0.6c5-py2.5.egg': 'a8d3f61494ccaa8714dfed37bccd3d5d',
        'setuptools-0.6c6-py2.3.egg': '35686b78116a668847237b69d549ec20',
        'setuptools-0.6c6-py2.4.egg': '3c56af57be3225019260a644430065ab',
        'setuptools-0.6c6-py2.5.egg': 'b2f8a7520709a5b34f80946de5f02f53',
        'setuptools-0.6c7-py2.3.egg': '209fdf9adc3a615e5115b725658e13e2',
        'setuptools-0.6c7-py2.4.egg': '5a8f954807d46a0fb67cf1f26c55a82e',
        'setuptools-0.6c7-py2.5.egg': '45d2ad28f9750e7434111fde831e8372',
        'setuptools-0.6c8-py2.3.egg': '50759d29b349db8cfd807ba8303f1902',
        'setuptools-0.6c8-py2.4.egg': 'cba38d74f7d483c06e9daa6070cce6de',
        'setuptools-0.6c8-py2.5.egg': '1721747ee329dc150590a58b3e1ac95b',
        'setuptools-0.6c9-py2.3.egg': 'a83c4020414807b496e4cfbe08507c03',
        'setuptools-0.6c9-py2.4.egg': '260a2be2e5388d66bdaee06abec6342a',
        'setuptools-0.6c9-py2.5.egg': 'fe67c3e5a17b12c0e7c541b7ea43a8e6',
        'setuptools-0.6c9-py2.6.egg': 'ca37b1ff16fa2ede6e19383e7b59245a',
    }
    
    import sys, os
    try: from hashlib import md5
    except ImportError: from md5 import md5
    
    def _validate_md5(egg_name, data):
        if egg_name in md5_data:
            digest = md5(data).hexdigest()
            if digest != md5_data[egg_name]:
                print >>sys.stderr, (
                    "md5 validation of %s failed!  (Possible download problem?)"
                    % egg_name
                )
                sys.exit(2)
        return data
    
    def use_setuptools(
        version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
        download_delay=15
    ):
        """Automatically find/download setuptools and make it available on sys.path
    
        `version` should be a valid setuptools version number that is available
        as an egg for download under the `download_base` URL (which should end with
        a '/').  `to_dir` is the directory where setuptools will be downloaded, if
        it is not already available.  If `download_delay` is specified, it should
        be the number of seconds that will be paused before initiating a download,
        should one be required.  If an older version of setuptools is installed,
        this routine will print a message to ``sys.stderr`` and raise SystemExit in
        an attempt to abort the calling script.
        """
        was_imported = 'pkg_resources' in sys.modules or 'setuptools' in sys.modules
        def do_download():
            egg = download_setuptools(version, download_base, to_dir, download_delay)
            sys.path.insert(0, egg)
            import setuptools; setuptools.bootstrap_install_from = egg
        try:
            import pkg_resources
        except ImportError:
            return do_download()       
        try:
            pkg_resources.require("setuptools>="+version); return
        except pkg_resources.VersionConflict, e:
            if was_imported:
                print >>sys.stderr, (
                "The required version of setuptools (>=%s) is not available, and\n"
                "can't be installed while this script is running. Please install\n"
                " a more recent version first, using 'easy_install -U setuptools'."
                "\n\n(Currently using %r)"
                ) % (version, e.args[0])
                sys.exit(2)
        except pkg_resources.DistributionNotFound:
            pass
    
        del pkg_resources, sys.modules['pkg_resources']    # reload ok
        return do_download()
    
    def download_setuptools(
        version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
        delay = 15
    ):
        """Download setuptools from a specified location and return its filename
    
        `version` should be a valid setuptools version number that is available
        as an egg 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.
        """
        import urllib2, shutil
        egg_name = "setuptools-%s-py%s.egg" % (version,sys.version[:3])
        url = download_base + egg_name
        saveto = os.path.join(to_dir, egg_name)
        src = dst = None
        if not os.path.exists(saveto):  # Avoid repeated downloads
            try:
                from distutils import log
                if delay:
                    log.warn("""
    ---------------------------------------------------------------------------
    This script requires setuptools version %s to run (even to display
    help).  I will attempt to download it for you (from
    %s), but
    you may need to enable firewall access for this script first.
    I will start the download in %d seconds.
    
    (Note: if this machine does not have network access, please obtain the file
    
       %s
    
    and place it in this directory before rerunning this script.)
    ---------------------------------------------------------------------------""",
                        version, download_base, delay, url
                    ); from time import sleep; sleep(delay)
                log.warn("Downloading %s", url)
                src = urllib2.urlopen(url)
                # Read/write all in one block, so we don't create a corrupt file
                # if the download is interrupted.
                data = _validate_md5(egg_name, src.read())
                dst = open(saveto,"wb"); dst.write(data)
            finally:
                if src: src.close()
                if dst: dst.close()
        return os.path.realpath(saveto)
    
    def main(argv, version=DEFAULT_VERSION):
        """Install or upgrade setuptools and EasyInstall"""
        try:
            import setuptools
        except ImportError:
            egg = None
            try:
                egg = download_setuptools(version, delay=0)
                sys.path.insert(0,egg)
                from setuptools.command.easy_install import main
                return main(list(argv)+[egg])   # we're done here
            finally:
                if egg and os.path.exists(egg):
                    os.unlink(egg)
        else:
            if setuptools.__version__ == '0.0.1':
                print >>sys.stderr, (
                "You have an obsolete version of setuptools installed.  Please\n"
                "remove it from your system entirely before rerunning this script."
                )
                sys.exit(2)
    
        req = "setuptools>="+version
        import pkg_resources
        try:
            pkg_resources.require(req)
        except pkg_resources.VersionConflict:
            try:
                from setuptools.command.easy_install import main
            except ImportError:
                from easy_install import main
            main(list(argv)+[download_setuptools(delay=0)])
            sys.exit(0) # try to force an exit
        else:
            if argv:
                from setuptools.command.easy_install import main
                main(argv)
            else:
                print "Setuptools version",version,"or greater has been installed."
                print '(Run "ez_setup.py -U setuptools" to reinstall or upgrade.)'
    
    def update_md5(filenames):
        """Update our built-in md5 registry"""
    
        import re
    
        for name in filenames:
            base = os.path.basename(name)
            f = open(name,'rb')
            md5_data[base] = md5(f.read()).hexdigest()
            f.close()
    
        data = ["    %r: %r,\n" % it for it in md5_data.items()]
        data.sort()
        repl = "".join(data)
    
        import inspect
        srcfile = inspect.getsourcefile(sys.modules[__name__])
        f = open(srcfile, 'rb'); src = f.read(); f.close()
    
        match = re.search("\nmd5_data = {\n([^}]+)}", src)
        if not match:
            print >>sys.stderr, "Internal error!"
            sys.exit(2)
    
        src = src[:match.start(1)] + repl + src[match.end(1):]
        f = open(srcfile,'w')
        f.write(src)
        f.close()
    
    
    if __name__=='__main__':
        if len(sys.argv)>2 and sys.argv[1]=='--md5update':
            update_md5(sys.argv[2:])
        else:
            main(sys.argv[1:])
    

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