diff --git a/_xtool/llpyg/llpyg.go b/_xtool/llpyg/llpyg.go
new file mode 100644
index 00000000..56053d27
--- /dev/null
+++ b/_xtool/llpyg/llpyg.go
@@ -0,0 +1,48 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/py"
+)
+
+func main() {
+	if c.Argc < 2 {
+		c.Fprintf(c.Stderr, c.Str("Usage: llpyg <pythonLibPath> [<destDir>]\n"))
+		return
+	}
+
+	pyLib := c.Index(c.Argv, 1)
+	destDir := c.Str(".")
+	if c.Argc > 2 {
+		destDir = c.Index(c.Argv, 2)
+	}
+	c.Fprintf(c.Stderr, c.Str("pyLib: %s, destDir: %s\n"), pyLib, destDir)
+
+	py.Initialize()
+	mod := py.ImportModule(pyLib)
+	dict := mod.ModuleGetDict()
+	items := dict.DictItems()
+	for i, n := uintptr(0), items.ListLen(); i < n; i++ {
+		item := items.ListItem(i)
+		key := item.TupleItem(0)
+		val := item.TupleItem(1)
+		_ = val
+		c.Fprintf(c.Stderr, c.Str("%s\n"), key.CStr())
+	}
+}
diff --git a/py/bytes.go b/py/bytes.go
index 1b5277db..52f0275f 100644
--- a/py/bytes.go
+++ b/py/bytes.go
@@ -16,6 +16,8 @@
 
 package py
 
+/*
+
 import (
 	_ "unsafe"
 
@@ -44,3 +46,5 @@ func (o *Object) CStr() *c.Char { return nil }
 
 // llgo:link (*Object).Strlen C.PyBytes_Size
 func (o *Object) Strlen() uintptr { return 0 }
+
+*/
diff --git a/py/dict.go b/py/dict.go
new file mode 100644
index 00000000..8f8923b4
--- /dev/null
+++ b/py/dict.go
@@ -0,0 +1,45 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package py
+
+import (
+	_ "unsafe"
+)
+
+// https://docs.python.org/3/c-api/dict.html
+
+// Return a new empty dictionary, or nil on failure.
+//
+//go:linkname NewDict C.PyDict_New
+func NewDict() *Object
+
+// Return a ListObject containing all the keys from the dictionary.
+//
+// llgo:link (*Object).DictKeys C.PyDict_Keys
+func (d *Object) DictKeys() *Object { return nil }
+
+// Return a ListObject containing all the values from the dictionary.
+//
+// llgo:link (*Object).DictValues C.PyDict_Values
+func (d *Object) DictValues() *Object { return nil }
+
+// Return a ListObject containing all the items from the dictionary.
+//
+// llgo:link (*Object).DictItems C.PyDict_Items
+func (d *Object) DictItems() *Object { return nil }
+
+// -----------------------------------------------------------------------------
diff --git a/py/list.go b/py/list.go
new file mode 100644
index 00000000..4a5297c9
--- /dev/null
+++ b/py/list.go
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package py
+
+import (
+	_ "unsafe"
+)
+
+// https://docs.python.org/3/c-api/list.html
+
+// Return a new list of length len on success, or nil on failure.
+//
+//go:linkname NewList C.PyList_New
+func NewList(len uintptr) *Object
+
+// Return the length of the list object in list; this is equivalent to len(list)
+// on a list object.
+//
+// llgo:link (*Object).ListLen C.PyList_Size
+func (l *Object) ListLen() uintptr { return 0 }
+
+// Return the object at position index in the list pointed to by list. The position
+// must be non-negative; indexing from the end of the list is not supported. If index
+// is out of bounds (<0 or >=len(list)), return nil and set an IndexError exception.
+//
+// llgo:link (*Object).ListItem C.PyList_GetItem
+func (l *Object) ListItem(index uintptr) *Object { return nil }
diff --git a/py/module.go b/py/module.go
index 17f19b14..6f33cfaf 100644
--- a/py/module.go
+++ b/py/module.go
@@ -22,7 +22,7 @@ import (
 	"github.com/goplus/llgo/c"
 )
 
-// -----------------------------------------------------------------------------
+// https://docs.python.org/3/c-api/module.html
 
 // This is a wrapper around py.Import which takes a const char* as an argument
 // instead of an Object.
diff --git a/py/tuple.go b/py/tuple.go
new file mode 100644
index 00000000..a7d7aa30
--- /dev/null
+++ b/py/tuple.go
@@ -0,0 +1,39 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package py
+
+import (
+	_ "unsafe"
+)
+
+// https://docs.python.org/3/c-api/tuple.html
+
+// Return a new tuple object of size len, or nil on failure.
+//
+//go:linkname NewTuple C.PyTuple_New
+func NewTuple(len uintptr) *Object
+
+// Take a pointer to a tuple object, and return the size of that tuple.
+//
+// llgo:link (*Object).TupleLen C.PyTuple_Size
+func (t *Object) TupleLen() uintptr { return 0 }
+
+// Return the object at position pos in the tuple pointed to by p. If pos is
+// negative or out of bounds, return nil and set an IndexError exception.
+//
+// llgo:link (*Object).TupleItem C.PyTuple_GetItem
+func (t *Object) TupleItem(index uintptr) *Object { return nil }
diff --git a/py/unicode.go b/py/unicode.go
new file mode 100644
index 00000000..6c9fb85c
--- /dev/null
+++ b/py/unicode.go
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2024 The GoPlus Authors (goplus.org). All rights reserved.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package py
+
+import (
+	_ "unsafe"
+
+	"github.com/goplus/llgo/c"
+)
+
+// https://docs.python.org/3/c-api/unicode.html
+
+// Return a pointer to the UTF-8 encoding of the Unicode object, and store the
+// size of the encoded representation (in bytes) in size. The size argument can
+// be nil; in this case no size will be stored. The returned buffer always has
+// an extra null byte appended (not included in size), regardless of whether
+// there are any other null code points.
+//
+// In the case of an error, nil is returned with an exception set and no size is
+// stored.
+//
+// This caches the UTF-8 representation of the string in the Unicode object, and
+// subsequent calls will return a pointer to the same buffer. The caller is not
+// responsible for deallocating the buffer. The buffer is deallocated and pointers
+// to it become invalid when the Unicode object is garbage collected.
+//
+// llgo:link (*Object).CStrAndLen C.PyUnicode_AsUTF8AndSize
+func (o *Object) CStrAndLen() (*c.Char, uintptr) { return nil, 0 }
+
+// As CStrAndLen, but does not store the len.
+//
+// llgo:link (*Object).CStr C.PyUnicode_AsUTF8
+func (o *Object) CStr() *c.Char { return nil }