diff --git a/cd.sh b/cd.sh
index 626c577..b64ce20 100644
--- a/cd.sh
+++ b/cd.sh
@@ -573,17 +573,30 @@ ${CD_PYTHON_PACKAGES}
 cd_write_python_module () {
     cd_step "Write Python module"
     cd_write "${CD_PYTHON_PACKAGES}/env.py" "\
-CD_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)
+
+STEP = ${CD_STEP}
+
+
+def open(*arguments):
+    print('${CD_OPEN}', end=str())
+    print(*arguments, flush=True)
+
+
+def shut(*arguments):
+    print('${CD_SHUT}', end=str())
+    print(*arguments, flush=True)
+
+
+def split():
+    print('${CD_SPLIT}', flush=True)
+
+
+def step(*arguments):
+    STEP += 1
+    print('${CD_DOWN}')
+    print('${CD_BOX_VERTICAL}', STEP, *arguments)
+    print('${CD_UP}', flush=True)
 "
 }
 
@@ -714,7 +727,7 @@ cd_step () {
     CD_STEP=$((CD_STEP+1))
     echo -n "\
 ${CD_DOWN}
-${CD_VERTICAL} ${CD_STEP} ${@}
+${CD_BOX_VERTICAL} ${CD_STEP} ${@}
 ${CD_UP}
 "
 }
@@ -759,7 +772,6 @@ CD_OPEN="${CD_BOX_DOWN}${CD_BOX_LEFT}"
 CD_SHUT="${CD_BOX_UP}${CD_BOX_LEFT}"
 
 CD_HORIZONTAL="${CD_BOX_HORIZONTAL}╌╌┄┄┈┈"
-CD_VERTICAL="${CD_BOX_VERTICAL}"
 
 CD_DOWN="${CD_BOX_DOWN}${CD_HORIZONTAL}"
 CD_SPLIT="${CD_BOX_RIGHT}${CD_HORIZONTAL}"
diff --git a/cd/__init__.py b/cd/__init__.py
index 6bb0000..279a18f 100644
--- a/cd/__init__.py
+++ b/cd/__init__.py
@@ -90,8 +90,7 @@ def install_commands(path):
 
 def set_ssh(*arguments):
     ssh_key, ssh_hosts = arguments
-    #
-    ssh_type = 'ed25519'
+    ssh_type = projects.environment.get('CD_SSH_TYPE', 'ed25519')
     #
     home = os.path.expanduser('~')
     #
@@ -108,24 +107,3 @@ def set_ssh(*arguments):
     if ssh_hosts:
         fs.write(known, ssh_hosts)
         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.CD_SPLIT, flush=True)
-
-
-def step(*arguments):
-    env.CD_STEP += 1
-    print(env.CD_DOWN)
-    print(env.CD_VERTICAL, env.CD_STEP, *arguments)
-    print(env.CD_UP, flush=True)
diff --git a/cmd/cd-clone-python.sh b/cmd/cd-clone-python.sh
new file mode 100755
index 0000000..52eb00e
--- /dev/null
+++ b/cmd/cd-clone-python.sh
@@ -0,0 +1,15 @@
+[ "${1}" ] && REPOSITORY_FULL="${1}" || exit
+REPOSITORY_NAME="$(basename ${REPOSITORY_FULL})"
+
+REPOSITORY_TEMP="$(mktemp --directory)"
+
+git clone \
+-- \
+"${GITHUB_SERVER_URL}/${REPOSITORY_FULL}" \
+"${REPOSITORY_TEMP}"
+
+mv "${REPOSITORY_TEMP}/${REPOSITORY_NAME}" \
+/usr/local/lib/python3.*/dist-packages/
+
+rm --force --recursive \
+"${REPOSITORY_TEMP}"