diff --git a/exec.go b/exec.go
new file mode 100644
index 00000000..91e881e6
--- /dev/null
+++ b/exec.go
@@ -0,0 +1,35 @@
+package starlet
+
+import (
+	"bytes"
+
+	"go.starlark.net/starlark"
+	"go.starlark.net/syntax"
+)
+
+func starlarkExecFile(opts *syntax.FileOptions, thread *starlark.Thread, filename string, src interface{}, predeclared starlark.StringDict) (starlark.StringDict, error) {
+	// Parse, resolve, and compile a Starlark source file.
+	_, prog, err := starlark.SourceProgramOptions(opts, filename, src, predeclared.Has)
+	if err != nil {
+		return nil, err
+	}
+
+	// Try to save it to the cache
+	buf := new(bytes.Buffer)
+	if err := prog.Write(buf); err != nil {
+		return nil, err
+	}
+	bs := buf.Bytes()
+	//cv := starlark.CompilerVersion
+
+	// Reload as a new program
+	np, err := starlark.CompiledProgram(bytes.NewReader(bs))
+	if err != nil {
+		return nil, err
+	}
+	prog = np
+
+	g, err := prog.Init(thread, predeclared)
+	g.Freeze()
+	return g, err
+}
diff --git a/machine.go b/machine.go
index c2e64501..dc10e22a 100644
--- a/machine.go
+++ b/machine.go
@@ -6,13 +6,11 @@
 package starlet
 
 import (
-	"bytes"
 	"fmt"
 	"io/fs"
 	"sync"
 
 	"go.starlark.net/starlark"
-	"go.starlark.net/syntax"
 )
 
 // Machine is a thread-safe type that wraps Starlark runtime environments. Machine ensures thread safety by using a sync.RWMutex to control access to the environment's state.
@@ -323,30 +321,3 @@ func (m *Machine) DisableGlobalReassign() {
 
 	m.allowGlobalReassign = false
 }
-
-func starlarkExecFile(opts *syntax.FileOptions, thread *starlark.Thread, filename string, src interface{}, predeclared starlark.StringDict) (starlark.StringDict, error) {
-	// Parse, resolve, and compile a Starlark source file.
-	_, prog, err := starlark.SourceProgramOptions(opts, filename, src, predeclared.Has)
-	if err != nil {
-		return nil, err
-	}
-
-	// Try to save it to the cache
-	buf := new(bytes.Buffer)
-	if err := prog.Write(buf); err != nil {
-		return nil, err
-	}
-	bs := buf.Bytes()
-	//cv := starlark.CompilerVersion
-
-	// Reload as a new program
-	np, err := starlark.CompiledProgram(bytes.NewReader(bs))
-	if err != nil {
-		return nil, err
-	}
-	prog = np
-
-	g, err := prog.Init(thread, predeclared)
-	g.Freeze()
-	return g, err
-}