diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..4d4b631
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,9 @@
+module github.com/go-python/gopy
+
+go 1.12
+
+require (
+	github.com/gonuts/commander v0.1.0
+	github.com/gonuts/flag v0.1.0
+	github.com/pkg/errors v0.8.1
+)
diff --git a/go.sum b/go.sum
new file mode 100644
index 0000000..c257d8d
--- /dev/null
+++ b/go.sum
@@ -0,0 +1,6 @@
+github.com/gonuts/commander v0.1.0 h1:EcDTiVw9oAVORFjQOEOuHQqcl6OXMyTgELocTq6zJ0I=
+github.com/gonuts/commander v0.1.0/go.mod h1:qkb5mSlcWodYgo7vs8ulLnXhfinhZsZcm6+H/z1JjgY=
+github.com/gonuts/flag v0.1.0 h1:fqMv/MZ+oNGu0i9gp0/IQ/ZaPIDoAZBOBaJoV7viCWM=
+github.com/gonuts/flag v0.1.0/go.mod h1:ZTmTGtrSPejTo/SRNhCqwLTmiAgyBdCkLYhHrAoBdz4=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=