Step 1 of Tkinter renaming: move lib-tk modules into a new "tkinter" package.

Lib/tkinter/_fix.py

@@ -0,0 +1,41 @@
+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 not os.path.exists(prefix):
+    # devdir/../tcltk/lib
+    prefix = os.path.join(sys.prefix, os.path.pardir, "tcltk", "lib")
+    prefix = os.path.abspath(prefix)
+# 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
+    # Compute TK_LIBRARY, knowing that it has the same version
+    # as Tcl
+    import _tkinter
+    ver = str(_tkinter.TCL_VERSION)
+    if not os.environ.has_key("TK_LIBRARY"):
+        v = os.path.join(prefix, 'tk'+ver)
+        if os.path.exists(os.path.join(v, "tclIndex")):
+            os.environ['TK_LIBRARY'] = v
+    # We don't know the Tix version, so we must search the entire
+    # directory
+    if not os.environ.has_key("TIX_LIBRARY"):
+        for name in os.listdir(prefix):
+            if name.startswith("tix"):
+                tixdir = os.path.join(prefix,name)
+                if os.path.isdir(tixdir):
+                    os.environ["TIX_LIBRARY"] = tixdir