| 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 |
