Python distutils 模块，sysconfig() 实例源码

def test_sitepackagesdir(monkeypatch):
    import distutils.sysconfig as sysconfig
    test_envdir = "holy grail"
    test_dir = "Now go away or I will taunt you a second time."

    def dummy_get_python_lib(prefix):
        assert prefix is test_envdir
        return test_dir

    monkeypatch.setattr(sysconfig, "get_python_lib", dummy_get_python_lib)
    assert sitepackagesdir(test_envdir) == {"dir": test_dir}

def _add_env_libs_and_src(self):
        LOGGER.info('Add sources and libraries from current environment')
        Repo(path=self.repository).clone(path=self.workspace)
        shutil.rmtree(os.path.join(self.workspace, '.git'))
        package_path = distutils.sysconfig.get_python_lib()
        self.__add_package_from_path(package_path)
        for package in self.ignored_packages:
            try:
                shutil.rmtree(os.path.join(self.workspace, package))
            except OSError:
                pass

def get_exe_bytes(self):
        from distutils.msvccompiler import get_build_version
        # If a target-version other than the current version has been
        # specified, then using the MSVC version from *this* build is no good.
        # Without actually finding and executing the target version and parsing
        # its sys.version, we just hard-code our knowledge of old versions.
        # NOTE: Possible alternative is to allow "--target-version" to
        # specify a Python executable rather than a simple version string.
        # We can then execute this program to obtain any info we need, such
        # as the real sys.version string for the build.
        cur_version = get_python_version()
        if self.target_version and self.target_version != cur_version:
            # If the target version is *later* than us, then we assume they
            # use what we use
            # string compares seem wrong, but are what sysconfig.py itself uses
            if self.target_version > cur_version:
                bv = get_build_version()
            else:
                if self.target_version < "2.4":
                    bv = 6.0
                else:
                    bv = 7.1
        else:
            # for current version - use authoritative check.
            bv = get_build_version()

        # wininst-x.y.exe is in the same directory as this file
        directory = os.path.dirname(__file__)
        # we must use a wininst-x.y.exe built with the same C compiler
        # used for python.  XXX What about mingw, borland, and so on?

        # if plat_name starts with "win" but is not "win32"
        # we want to strip "win" and leave the rest (e.g. -amd64)
        # for all other cases, we don't want any suffix
        if self.plat_name != 'win32' and self.plat_name[:3] == 'win':
            sfix = self.plat_name[3:]
        else:
            sfix = ''

        filename = os.path.join(directory, "wininst-%.1f%s.exe" % (bv, sfix))
        f = open(filename, "rb")
        try:
            return f.read()
        finally:
            f.close()

def get_exe_bytes(self):
        from distutils.msvccompiler import get_build_version
        # If a target-version other than the current version has been
        # specified, then using the MSVC version from *this* build is no good.
        # Without actually finding and executing the target version and parsing
        # its sys.version, we just hard-code our knowledge of old versions.
        # NOTE: Possible alternative is to allow "--target-version" to
        # specify a Python executable rather than a simple version string.
        # We can then execute this program to obtain any info we need, such
        # as the real sys.version string for the build.
        cur_version = get_python_version()
        if self.target_version and self.target_version != cur_version:
            # If the target version is *later* than us, then we assume they
            # use what we use
            # string compares seem wrong, but are what sysconfig.py itself uses
            if self.target_version > cur_version:
                bv = get_build_version()
            else:
                if self.target_version < "2.4":
                    bv = 6.0
                else:
                    bv = 7.1
        else:
            # for current version - use authoritative check.
            bv = get_build_version()

        # wininst-x.y.exe is in the same directory as this file
        directory = os.path.dirname(__file__)
        # we must use a wininst-x.y.exe built with the same C compiler
        # used for python.  XXX What about mingw, borland, and so on?

        # if plat_name starts with "win" but is not "win32"
        # we want to strip "win" and leave the rest (e.g. -amd64)
        # for all other cases, we don't want any suffix
        if self.plat_name != 'win32' and self.plat_name[:3] == 'win':
            sfix = self.plat_name[3:]
        else:
            sfix = ''

        filename = os.path.join(directory, "wininst-%.1f%s.exe" % (bv, sfix))
        f = open(filename, "rb")
        try:
            return f.read()
        finally:
            f.close()