diff --git a/shell.py b/shell.py
new file mode 100755
index 0000000..691dd86
--- /dev/null
+++ b/shell.py
@@ -0,0 +1,26 @@
+#!/usr/bin/env python
+
+# from subprocess import Popen, PIPE
+
+# p = Popen("/usr/bin/zsh", stdin=PIPE)
+# p.communicate(b"echo a")
+# p.communicate(b"cd ..")
+# p.communicate(b"echo b")
+# p.kill()
+
+from __future__ import print_function, unicode_literals
+import subprocess
+
+shell = subprocess.Popen(
+    ["/bin/sh"],
+    stdin=subprocess.PIPE,
+    stdout=subprocess.PIPE,
+    universal_newlines=True,
+)
+
+shell.stdin.write("echo a")
+print(shell.stdout.raw)
+shell.stdin.write("echo b")
+print(shell.stdout.raw)
+print(shell.stdout)
+shell.stdin.close()