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.

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

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

if os.path.exists(prefix):

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

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

# Now set the other variables accordingly

import _tkinter

ver = str(_tkinter.TCL_VERSION)

for t in "tk", "tix":

key = t.upper() + "_LIBRARY"

try:

v = os.environ[key]

except KeyError:

v = os.path.join(sys.prefix, "tcl", t+ver)

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

os.environ[key] = v