diff --git a/.gitmodules b/.gitmodules
new file mode 100644
index 0000000..bd3120b
--- /dev/null
+++ b/.gitmodules
@@ -0,0 +1,3 @@
+[submodule "targets/python-benchmarks"]
+	path = targets/python-benchmarks
+	url = https://github.com/tochilinak/python-benchmarks.git
diff --git a/targets/python-benchmarks b/targets/python-benchmarks
new file mode 160000
index 0000000..d6d4ab2
--- /dev/null
+++ b/targets/python-benchmarks
@@ -0,0 +1 @@
+Subproject commit d6d4ab2c7afec909e6ba1ede6e9ee64998559753
diff --git a/targets/sum_array.py b/targets/sum_array.py
deleted file mode 100644
index 1ad89d8..0000000
--- a/targets/sum_array.py
+++ /dev/null
@@ -1,6 +0,0 @@
-def sum_(a_and_n):
-    (a, n) = a_and_n
-    result = 0
-    for i in range(n):
-        result += a[i]
-    return result
diff --git a/targets/unsafe.py b/targets/unsafe.py
deleted file mode 100644
index 5155b52..0000000
--- a/targets/unsafe.py
+++ /dev/null
@@ -1,12 +0,0 @@
-class RawCommand:
-    def __init__(self, cmd):
-        self.cmd = cmd
-
-    def run(self):
-        eval(self.cmd)
-
-
-def run(commands):
-    for cmd in commands:
-        cmd.run()
-    return "Success"