makepy.py 文件源码

def GetTypeLibsForSpec(arg):
    """Given an argument on the command line (either a file name, library
    description, or ProgID of an object) return a list of actual typelibs
    to use. """
    typelibs = []
    try:
        try:
            tlb = pythoncom.LoadTypeLib(arg)
            spec = selecttlb.TypelibSpec(None, 0,0,0)
            spec.FromTypelib(tlb, arg)
            typelibs.append((tlb, spec))
        except pythoncom.com_error:
            # See if it is a description
            tlbs = selecttlb.FindTlbsWithDescription(arg)
            if len(tlbs)==0:
                # Maybe it is the name of a COM object?
                try:
                    ob = Dispatch(arg)
                    # and if so, it must support typelib info
                    tlb, index = ob._oleobj_.GetTypeInfo().GetContainingTypeLib()
                    spec = selecttlb.TypelibSpec(None, 0,0,0)
                    spec.FromTypelib(tlb)
                    tlbs.append(spec)
                except pythoncom.com_error:
                    pass
            if len(tlbs)==0:
                print "Could not locate a type library matching '%s'" % (arg)
            for spec in tlbs:
                # Version numbers not always reliable if enumerated from registry.
                # (as some libs use hex, other's dont.  Both examples from MS, of course.)
                if spec.dll is None:
                    tlb = pythoncom.LoadRegTypeLib(spec.clsid, spec.major, spec.minor, spec.lcid)
                else:
                    tlb = pythoncom.LoadTypeLib(spec.dll)

                # We have a typelib, but it may not be exactly what we specified
                # (due to automatic version matching of COM).  So we query what we really have!
                attr = tlb.GetLibAttr()
                spec.major = attr[3]
                spec.minor = attr[4]
                spec.lcid = attr[1]
                typelibs.append((tlb, spec))
        return typelibs
    except pythoncom.com_error:
        t,v,tb=sys.exc_info()
        sys.stderr.write ("Unable to load type library from '%s' - %s\n" % (arg, v))
        tb = None # Storing tb in a local is a cycle!
        sys.exit(1)