diff --git a/cd.sh b/cd.sh
index 4781d48..e0bbb65 100644
--- a/cd.sh
+++ b/cd.sh
@@ -575,23 +575,15 @@ cd_write_python_module () {
     cd_write "${CD_PYTHON_PACKAGES}/env.py" "\
 STEP = ${CD_STEP}
 
+
+$(cd_echo CD_DOWN CD_VERTICAL CD_UP)
+
+$(cd_echo CD_OPEN CD_SHUT)
+
+$(cd_echo CD_SPLIT)
+
+
 $(cd_echo CD_OS_ID CD_OS_VERSION)
-
-DOWN = \"${CD_DOWN}\"
-VERTICAL = \"${CD_VERTICAL}\"
-UP = \"${CD_UP}\"
-
-SPLIT = \"${CD_SPLIT}\"
-
-
-def open(*arguments):
-    print('${CD_OPEN}', end=str())
-    print(*arguments, flush=True)
-
-
-def shut(*arguments):
-    print('${CD_SHUT}', end=str())
-    print(*arguments, flush=True)
 "
 }
 
diff --git a/cd/__init__.py b/cd/__init__.py
index 968ad16..6bb0000 100644
--- a/cd/__init__.py
+++ b/cd/__init__.py
@@ -110,12 +110,22 @@ def set_ssh(*arguments):
         os.chmod(known, 0o400)
 
 
+def open(*arguments):
+    print(env.CD_OPEN, end=str())
+    print(*arguments, flush=True)
+
+
+def shut(*arguments):
+    print(env.CD_SHUT, end=str())
+    print(*arguments, flush=True)
+
+
 def split():
-    print(env.SPLIT, flush=True)
+    print(env.CD_SPLIT, flush=True)
 
 
 def step(*arguments):
-    env.STEP += 1
-    print(env.DOWN)
-    print(env.VERTICAL, env.STEP, *arguments)
-    print(env.UP, flush=True)
+    env.CD_STEP += 1
+    print(env.CD_DOWN)
+    print(env.CD_VERTICAL, env.CD_STEP, *arguments)
+    print(env.CD_UP, flush=True)