import sys, os # Delay import _tkinter until we have set TCL_LIBRARY,# so that Tcl_FindExecutable has a chance to locate its# encoding directory. # Unfortunately, we cannot know the TCL_LIBRARY directory# if we don't know the tcl version, which we cannot find out# without import Tcl. Fortunately, Tcl will itself look in# <TCL_LIBRARY>\..\tcl<TCL_VERSION>, so anything close to# the real Tcl library will do. prefix = os.path.join(sys.prefix,"tcl")# if this does not exist, no further search is neededif os.path.exists(prefix):    if not os.environ.has_key("TCL_LIBRARY"):        for name in os.listdir(prefix):            if name.startswith("tcl"):                tcldir = os.path.join(prefix,name)                if os.path.isdir(tcldir):                    os.environ["TCL_LIBRARY"] = tcldir    # Compute TK_LIBRARY, knowing that it has the same version    # as Tcl    import _tkinter    ver = str(_tkinter.TCL_VERSION)    if not os.environ.has_key("TK_LIBRARY"):        v = os.path.join(prefix, 'tk'+ver)        if os.path.exists(os.path.join(v, "tclIndex")):            os.environ['TK_LIBRARY'] = v    # We don't know the Tix version, so we must search the entire    # directory    if not os.environ.has_key("TIX_LIBRARY"):        for name in os.listdir(prefix):            if name.startswith("tix"):                tixdir = os.path.join(prefix,name)                if os.path.isdir(tixdir):                    os.environ["TIX_LIBRARY"] = tixdir