Looking for all python interpreters available instead

of using sys.executable

ChangeLog

@@ -1,3 +1,12 @@
+2008-07-17  Lincoln de Sousa  <lincoln@minaslivre.org>
+
+	Bug #48 - /usr/bin/guake is selectable as "default interpreter"
+
+	* src/guake.py (PrefsDialog.populate_shell_combo): Now it lists
+	all found python interpreters in path.
+
+	* NEWS: Just telling to the world about this new feature =)
+
 2008-07-10  Lincoln de Sousa  <lincoln@minaslivre.org>
 
 	* src/guake.py (Guake.on_window_lostfocus): Testing if the main

NEWS

@@ -17,4 +17,7 @@ changes since 0.2
         * Making easier to grab keybinging shortcuts from the prefs
           screen by using eggcellrendererkeys lib.
 
+        * Now we look for more python interpreters when filling
+          interpreters combo.
+
         * Fixing a lot of bugs.

src/guake.py

@@ -30,6 +30,7 @@
 import gconf
 import dbus
 
+import re
 import os
 import signal
 import sys
@@ -50,7 +51,19 @@
 # Loading translation
 bindtextdomain(guake_globals.name, guake_globals.locale_dir)
 
+# Path to the shells file, it will be used to start to populate
+# interpreters combo, see the next variable, its important to fill the
+# rest of the combo too.
+
 SHELLS_FILE = '/etc/shells'
+
+# A regular expression to match possible python interpreters when
+# filling interpreters combo in preferences
+
+PYTHONS = re.compile('^python\d\.\d$')
+
+# Sconf stuff
+
 GCONF_PATH = '/apps/guake/'
 GCONF_KEYS = GCONF_PATH + 'keybindings/'
 
@@ -290,7 +303,11 @@ def populate_shell_combo(self):
                 if possible and not possible.startswith('#') and \
                    os.path.exists(possible):
                     cb.append_text(possible)
-        cb.append_text(sys.executable)
+
+        for i in os.environ.get('PATH', '').split(os.pathsep):
+            for j in os.listdir(i):
+                if PYTHONS.match(j):
+                    cb.append_text(os.path.join(i, j))
 
     def populate_keys_tree(self):
         model = self.get_widget('treeview-keys').get_model()