msvc9compiler.py 文件源码

def _remove_visual_c_ref(self, manifest_file):
        try:
            # Remove references to the Visual C runtime, so they will
            # fall through to the Visual C dependency of Python.exe.
            # This way, when installed for a restricted user (e.g.
            # runtimes are not in WinSxS folder, but in Python's own
            # folder), the runtimes do not need to be in every folder
            # with .pyd's.
            # Returns either the filename of the modified manifest or
            # None if no manifest should be embedded.
            manifest_f = open(manifest_file)
            try:
                manifest_buf = manifest_f.read()
            finally:
                manifest_f.close()
            pattern = re.compile(
                r"""<assemblyIdentity.*?name=("|')Microsoft\."""\
                r"""VC\d{2}\.CRT("|').*?(/>|</assemblyIdentity>)""",
                re.DOTALL)
            manifest_buf = re.sub(pattern, "", manifest_buf)
            pattern = "<dependentAssembly>\s*</dependentAssembly>"
            manifest_buf = re.sub(pattern, "", manifest_buf)
            # Now see if any other assemblies are referenced - if not, we
            # don't want a manifest embedded.
            pattern = re.compile(
                r"""<assemblyIdentity.*?name=(?:"|')(.+?)(?:"|')"""
                r""".*?(?:/>|</assemblyIdentity>)""", re.DOTALL)
            if re.search(pattern, manifest_buf) is None:
                return None

            manifest_f = open(manifest_file, 'w')
            try:
                manifest_f.write(manifest_buf)
                return manifest_file
            finally:
                manifest_f.close()
        except IOError:
            pass

    # -- Miscellaneous methods -----------------------------------------
    # These are all used by the 'gen_lib_options() function, in
    # ccompiler.py.