diff --git a/_pyren3_launcher.py b/main.py
similarity index 100%
rename from _pyren3_launcher.py
rename to main.py
diff --git a/pyren3/cmdr_chkelm.py b/pyren3/cmdr_chkelm.py
index c4da949..164be6d 100755
--- a/pyren3/cmdr_chkelm.py
+++ b/pyren3/cmdr_chkelm.py
@@ -1,10 +1,10 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys, os
 import time
     
 import mod_globals
-import pyren
+import pyren3
 
 cmdb = '''
 #v1.0 ;AC P; ATZ                   ; Z                  ; reset all
diff --git a/pyren3/cmdr_example.py b/pyren3/cmdr_example.py
index 0b1b20d..67bb894 100755
--- a/pyren3/cmdr_example.py
+++ b/pyren3/cmdr_example.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 #  ______  ___   ___      ___       ___  ___   ______    __       _______ 
 # |   ___| \  \ /  /     /   \     |   \/   | |   _  \  |  |     |   ____|
@@ -13,7 +13,7 @@ import time
     
 import mod_globals
 import mod_ecu
-import pyren
+import pyren3
 
 os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))
 
diff --git a/pyren3/cmdr_odometr.py b/pyren3/cmdr_odometr.py
index 06af9fc..05267a2 100755
--- a/pyren3/cmdr_odometr.py
+++ b/pyren3/cmdr_odometr.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 import sys, os
 import time
@@ -7,7 +7,7 @@ import mod_db_manager
     
 import mod_globals
 import mod_ecu
-import pyren
+import pyren3
 
 os.chdir(os.path.dirname(os.path.realpath(sys.argv[0])))