1 import 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 prefix = os.path.join(sys.prefix,"tcl")

    14 if not os.path.exists(prefix):

    15     # devdir/../tcltk/lib

    16     prefix = os.path.join(sys.prefix, os.path.pardir, "tcltk", "lib")

    17     prefix = os.path.abspath(prefix)

    18 # if this does not exist, no further search is needed

    19 if os.path.exists(prefix):

    20     if not os.environ.has_key("TCL_LIBRARY"):

    21         for name in os.listdir(prefix):

    22             if name.startswith("tcl"):

    23                 tcldir = os.path.join(prefix,name)

    24                 if os.path.isdir(tcldir):

    25                     os.environ["TCL_LIBRARY"] = tcldir

    26     # Compute TK_LIBRARY, knowing that it has the same version

    27     # as Tcl

    28     import _tkinter

    29     ver = str(_tkinter.TCL_VERSION)

    30     if not os.environ.has_key("TK_LIBRARY"):

    31         v = os.path.join(prefix, 'tk'+ver)

    32         if os.path.exists(os.path.join(v, "tclIndex")):

    33             os.environ['TK_LIBRARY'] = v

    34     # We don't know the Tix version, so we must search the entire

    35     # directory

    36     if not os.environ.has_key("TIX_LIBRARY"):

    37         for name in os.listdir(prefix):

    38             if name.startswith("tix"):

    39                 tixdir = os.path.join(prefix,name)

    40                 if os.path.isdir(tixdir):

    41                     os.environ["TIX_LIBRARY"] = tixdir