develop.py 文件源码

def finalize_options(self):
        ei = self.get_finalized_command("egg_info")
        if ei.broken_egg_info:
            raise DistutilsError(
            "Please rename %r to %r before using 'develop'"
            % (ei.egg_info, ei.broken_egg_info)
            )
        self.args = [ei.egg_name]




        easy_install.finalize_options(self)
        self.expand_basedirs()
        self.expand_dirs()
        # pick up setup-dir .egg files only: no .egg-info
        self.package_index.scan(glob.glob('*.egg'))

        self.egg_link = os.path.join(self.install_dir, ei.egg_name+'.egg-link')
        self.egg_base = ei.egg_base
        if self.egg_path is None:
            self.egg_path = os.path.abspath(ei.egg_base)

        target = normalize_path(self.egg_base)
        if normalize_path(os.path.join(self.install_dir, self.egg_path)) != target:
            raise DistutilsOptionError(
                "--egg-path must be a relative path from the install"
                " directory to "+target
        )

        # Make a distribution for the package's source
        self.dist = Distribution(
            target,
            PathMetadata(target, os.path.abspath(ei.egg_info)),
            project_name = ei.egg_name
        )

        p = self.egg_base.replace(os.sep,'/')
        if p!= os.curdir:
            p = '../' * (p.count('/')+1)
        self.setup_path = p
        p = normalize_path(os.path.join(self.install_dir, self.egg_path, p))
        if  p != normalize_path(os.curdir):
            raise DistutilsOptionError(
                "Can't get a consistent path to setup script from"
                " installation directory", p, normalize_path(os.curdir))