zhangjingl
zhangjingl
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2016-04-10 07:19

Python3.5.1安装setuptools 出错

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  • a172586418 狼窝乀野狼 5年前
     #!/usr/bin/env python
    
    """
    Setuptools bootstrapping installer.
    
    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
    except ImportError:
        from urllib2 import urlopen
    
    try:
        from site import USER_SITE
    except ImportError:
        USER_SITE = None
    
    LATEST = object()
    DEFAULT_VERSION = LATEST
    DEFAULT_URL = "https://pypi.python.org/packages/source/s/setuptools/"
    DEFAULT_SAVE_DIR = os.curdir
    
    
    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)
            with ContextualZipFile(filename) as archive:
                archive.extractall()
    
            # 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."""
        egg = os.path.join(to_dir, 'setuptools-%s-py%d.%d.egg'
                           % (version, sys.version_info[0], sys.version_info[1]))
        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():
        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, '--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
    
        resp = urlopen('https://pypi.python.org/pypi/setuptools/json')
        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 (requires Python 2.6 or later)')
        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())
    

    拷贝下去 存为ez_setup.py 用python 运行,里面就包含了大部分类库。以后就可以采用例如安装pymysql:easy_setup.exe pymysql 这样就可以安装了。

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  • zhangjingl zhangjingl 5年前

    yum seach readline-devel
    然后重新编译一下python就OK啦!

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