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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. # Expand symbolic links on Vista try: import ctypes ctypes.windll.kernel32.GetFinalPathNameByHandleW except (ImportError, AttributeError): def convert_path(s): return s else: def convert_path(s): assert isinstance(s, str) # sys.prefix contains only bytes udir = s.decode("mbcs") hdir = ctypes.windll.kernel32.\ CreateFileW(udir, 0x80, # FILE_READ_ATTRIBUTES 1, # FILE_SHARE_READ None, 3, # OPEN_EXISTING 0x02000000, # FILE_FLAG_BACKUP_SEMANTICS None) if hdir == -1: # Cannot open directory, give up return s buf = ctypes.create_unicode_buffer(u"", 32768) res = ctypes.windll.kernel32.\ GetFinalPathNameByHandleW(hdir, buf, len(buf), 0) # VOLUME_NAME_DOS ctypes.windll.kernel32.CloseHandle(hdir) if res == 0: # Conversion failed (e.g. network location) return s s = buf[:res].encode("mbcs") # Ignore leading \\?\ if s.startswith("\\\\?\\"): s = s[4:] if s.startswith("UNC"): s = "\\" + s[3:] return s prefix = os.path.join(sys.prefix,"tcl") if not os.path.exists(prefix): # devdir/../tcltk/lib prefix = os.path.join(sys.prefix, os.path.pardir, "tcltk", "lib") prefix = os.path.abspath(prefix) # if this does not exist, no further search is needed if os.path.exists(prefix): prefix = convert_path(prefix) if "TCL_LIBRARY" not in os.environ: 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 "TK_LIBRARY" not in os.environ: 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 "TIX_LIBRARY" not in os.environ: 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