Lib/lib-tk/FixTk.py

   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 this does not exist, no further search is needed
  15 if os.path.exists(prefix):
  16     if not os.environ.has_key("TCL_LIBRARY"):
  17         for name in os.listdir(prefix):
  18             if name.startswith("tcl"):
  19                 tcldir = os.path.join(prefix,name)
  20                 if os.path.isdir(tcldir):
  21                     os.environ["TCL_LIBRARY"] = tcldir
  22     # Now set the other variables accordingly
  23     import _tkinter
  24     ver = str(_tkinter.TCL_VERSION)
  25     for t in "tk", "tix":
  26         key = t.upper() + "_LIBRARY"
  27         try:
  28             v = os.environ[key]
  29         except KeyError:
  30             v = os.path.join(sys.prefix, "tcl", t+ver)
  31             if os.path.exists(os.path.join(v, "tclIndex")):
  32                 os.environ[key] = v