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78 lines
2.8 KiB
Python
78 lines
2.8 KiB
Python
import sys, os
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# Delay import _tkinter until we have set TCL_LIBRARY,
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# so that Tcl_FindExecutable has a chance to locate its
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# encoding directory.
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# Unfortunately, we cannot know the TCL_LIBRARY directory
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# if we don't know the tcl version, which we cannot find out
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# without import Tcl. Fortunately, Tcl will itself look in
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# <TCL_LIBRARY>\..\tcl<TCL_VERSION>, so anything close to
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# the real Tcl library will do.
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# Expand symbolic links on Vista
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try:
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import ctypes
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ctypes.windll.kernel32.GetFinalPathNameByHandleW
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except (ImportError, AttributeError):
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def convert_path(s):
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return s
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else:
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def convert_path(s):
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if isinstance(s, bytes):
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s = s.decode("mbcs")
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hdir = ctypes.windll.kernel32.\
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CreateFileW(s, 0x80, # FILE_READ_ATTRIBUTES
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1, # FILE_SHARE_READ
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None, 3, # OPEN_EXISTING
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0x02000000, # FILE_FLAG_BACKUP_SEMANTICS
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None)
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if hdir == -1:
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# Cannot open directory, give up
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return s
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buf = ctypes.create_unicode_buffer("", 32768)
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res = ctypes.windll.kernel32.\
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GetFinalPathNameByHandleW(hdir, buf, len(buf),
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0) # VOLUME_NAME_DOS
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ctypes.windll.kernel32.CloseHandle(hdir)
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if res == 0:
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# Conversion failed (e.g. network location)
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return s
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s = buf[:res]
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# Ignore leading \\?\
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if s.startswith("\\\\?\\"):
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s = s[4:]
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if s.startswith("UNC"):
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s = "\\" + s[3:]
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return s
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prefix = os.path.join(sys.base_prefix,"tcl")
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if not os.path.exists(prefix):
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# devdir/../tcltk/lib
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prefix = os.path.join(sys.base_prefix, os.path.pardir, "tcltk", "lib")
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prefix = os.path.abspath(prefix)
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# if this does not exist, no further search is needed
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if os.path.exists(prefix):
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prefix = convert_path(prefix)
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if "TCL_LIBRARY" not in os.environ:
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for name in os.listdir(prefix):
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if name.startswith("tcl"):
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tcldir = os.path.join(prefix,name)
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if os.path.isdir(tcldir):
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os.environ["TCL_LIBRARY"] = tcldir
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# Compute TK_LIBRARY, knowing that it has the same version
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# as Tcl
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import _tkinter
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ver = str(_tkinter.TCL_VERSION)
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if "TK_LIBRARY" not in os.environ:
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v = os.path.join(prefix, 'tk'+ver)
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if os.path.exists(os.path.join(v, "tclIndex")):
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os.environ['TK_LIBRARY'] = v
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# We don't know the Tix version, so we must search the entire
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# directory
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if "TIX_LIBRARY" not in os.environ:
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for name in os.listdir(prefix):
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if name.startswith("tix"):
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tixdir = os.path.join(prefix,name)
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if os.path.isdir(tixdir):
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os.environ["TIX_LIBRARY"] = tixdir
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