source: titan/mediathek/localhoster/lib/python2.7/lib-tk/FixTk.py @ 40114

Last change on this file since 40114 was 40094, checked in by obi, 5 years ago

tithek add yoztube-dl support

File size: 2.9 KB
Line 
1import sys, os
2
3# Delay import _tkinter until we have set TCL_LIBRARY,
4# so that Tcl_FindExecutable has a chance to locate its
5# encoding directory.
6
7# Unfortunately, we cannot know the TCL_LIBRARY directory
8# if we don't know the tcl version, which we cannot find out
9# without import Tcl. Fortunately, Tcl will itself look in
10# <TCL_LIBRARY>\..\tcl<TCL_VERSION>, so anything close to
11# the real Tcl library will do.
12
13# Expand symbolic links on Vista
14try:
15    import ctypes
16    ctypes.windll.kernel32.GetFinalPathNameByHandleW
17except (ImportError, AttributeError):
18    def convert_path(s):
19        return s
20else:
21    def convert_path(s):
22        assert isinstance(s, str)   # sys.prefix contains only bytes
23        udir = s.decode("mbcs")
24        hdir = ctypes.windll.kernel32.\
25            CreateFileW(udir, 0x80, # FILE_READ_ATTRIBUTES
26                        1,          # FILE_SHARE_READ
27                        None, 3,    # OPEN_EXISTING
28                        0x02000000, # FILE_FLAG_BACKUP_SEMANTICS
29                        None)
30        if hdir == -1:
31            # Cannot open directory, give up
32            return s
33        buf = ctypes.create_unicode_buffer(u"", 32768)
34        res = ctypes.windll.kernel32.\
35            GetFinalPathNameByHandleW(hdir, buf, len(buf),
36                                      0) # VOLUME_NAME_DOS
37        ctypes.windll.kernel32.CloseHandle(hdir)
38        if res == 0:
39            # Conversion failed (e.g. network location)
40            return s
41        s = buf[:res].encode("mbcs")
42        # Ignore leading \\?\
43        if s.startswith("\\\\?\\"):
44            s = s[4:]
45        if s.startswith("UNC"):
46            s = "\\" + s[3:]
47        return s
48
49prefix = os.path.join(sys.prefix,"tcl")
50if not os.path.exists(prefix):
51    # devdir/externals/tcltk/lib
52    tcltk = 'tcltk'
53    if sys.maxsize > 2**31 - 1:
54        tcltk = 'tcltk64'
55    prefix = os.path.join(sys.prefix, "externals", tcltk, "lib")
56    prefix = os.path.abspath(prefix)
57# if this does not exist, no further search is needed
58if os.path.exists(prefix):
59    prefix = convert_path(prefix)
60    if "TCL_LIBRARY" not in os.environ:
61        for name in os.listdir(prefix):
62            if name.startswith("tcl"):
63                tcldir = os.path.join(prefix,name)
64                if os.path.isdir(tcldir):
65                    os.environ["TCL_LIBRARY"] = tcldir
66    # Compute TK_LIBRARY, knowing that it has the same version
67    # as Tcl
68    import _tkinter
69    ver = str(_tkinter.TCL_VERSION)
70    if "TK_LIBRARY" not in os.environ:
71        v = os.path.join(prefix, 'tk'+ver)
72        if os.path.exists(os.path.join(v, "tclIndex")):
73            os.environ['TK_LIBRARY'] = v
74    # We don't know the Tix version, so we must search the entire
75    # directory
76    if "TIX_LIBRARY" not in os.environ:
77        for name in os.listdir(prefix):
78            if name.startswith("tix"):
79                tixdir = os.path.join(prefix,name)
80                if os.path.isdir(tixdir):
81                    os.environ["TIX_LIBRARY"] = tixdir
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