CentOS 升级 Python

Python 2016-05-20 21:01 暂无评论

这两天接触了一发 Citrix Xenserver 割了四个小鸡玩,装了个 CentOS7 发现 Python 版本是 2.7.5 感觉不满足我需求,直接升级 Python 2.7.11 升级后发现各种错误,最小化的安装缺了不少东西。重新安装一遍确保没有问题发生。。

首先满足 Python 的 Development tools 安装以下依赖的包:

yum install -y zlib-devel
yum install -y bzip2-devel
yum install -y openssl-devel
yum install -y ncurses-devel
yum install -y sqlite-devel
yum install -y readline-devel

安装完依赖后,将旧的 Python 做下处理

mv /usr/bin/python /usr/bin/python-old

下载好 Python 源码包

wget -c https://www.python.org/ftp/python/2.7.11/Python-2.7.11.tgz
tar xvf Python-2.7.11.tgz && cd Python-2.7.11
mkdir /usr/local/python2.7.11
./configure --prefix=/usr/local/python2.7.11
make && make altinstall


ln -s /usr/local/python2.7.11/bin/python2.7 /usr/bin/python

整个升级过程完毕,安装一下 setuptools 以及 pip

wget -c http://peak.telecommunity.com/dist/ez_setup.py
python ez_setup.py
ln -s /usr/local/python2.7.11/bin/easy_install /usr/bin/easy_install
easy_install pip
ln -s /usr/local/python2.7.11/bin/pip /usr/bin/pip


为了避免 ez_setup.py 链接失效。这里还是贴一下代码 =-= 有需要可以直接新建

"""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

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_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
    return data

def use_setuptools(
    version=DEFAULT_VERSION, download_base=DEFAULT_URL, to_dir=os.curdir,
    """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
        import pkg_resources
    except ImportError:
        return do_download()       
        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])
    except pkg_resources.DistributionNotFound:

    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
            from distutils import log
            if delay:
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


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)
            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"""
        import setuptools
    except ImportError:
        egg = None
            egg = download_setuptools(version, delay=0)
            from setuptools.command.easy_install import main
            return main(list(argv)+[egg])   # we're done here
            if egg and os.path.exists(egg):
        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."

    req = "setuptools>="+version
    import pkg_resources
    except pkg_resources.VersionConflict:
            from setuptools.command.easy_install import main
        except ImportError:
            from easy_install import main
        sys.exit(0) # try to force an exit
        if argv:
            from setuptools.command.easy_install import main
            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()

    data = ["    %r: %r,\n" % it for it in md5_data.items()]
    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!"

    src = src[:match.start(1)] + repl + src[match.end(1):]
    f = open(srcfile,'w')

if __name__=='__main__':
    if len(sys.argv)>2 and sys.argv[1]=='--md5update':