easy_install.py 文件源码

def installation_report(self, req, dist, what="Installed"):
        """Helpful installation message for display to package users"""
        msg = "\n%(what)s %(eggloc)s%(extras)s"
        if self.multi_version and not self.no_report:
            msg += """

Because this distribution was installed --multi-version, before you can
import modules from this package in an application, you will need to
'import pkg_resources' and then use a 'require()' call similar to one of
these examples, in order to select the desired version:

    pkg_resources.require("%(name)s")  # latest installed version
    pkg_resources.require("%(name)s==%(version)s")  # this exact version
    pkg_resources.require("%(name)s>=%(version)s")  # this version or higher
"""
            if self.install_dir not in map(normalize_path,sys.path):
                msg += """

Note also that the installation directory must be on sys.path at runtime for
this to work.  (e.g. by being the application's script directory, by being on
PYTHONPATH, or by being added to sys.path by your code.)
"""
        eggloc = dist.location
        name = dist.project_name
        version = dist.version
        extras = '' # TODO: self.report_extras(req, dist)
        return msg % locals()