diff --git a/python/bindings/fixedlen_tagger_python.cc b/python/bindings/fixedlen_tagger_python.cc
@@ -0,0 +1,63 @@
+/*
+ * Copyright 2021 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * SPDX-License-Identifier: GPL-3.0-or-later
+ *
+ */
+
+/***********************************************************************************/
+/* This file is automatically generated using bindtool and can be manually edited  */
+/* The following lines can be configured to regenerate this file during cmake      */
+/* If manual edits are made, the following tags should be modified accordingly.    */
+/* BINDTOOL_GEN_AUTOMATIC(0)                                                       */
+/* BINDTOOL_USE_PYGCCXML(0)                                                        */
+/* BINDTOOL_HEADER_FILE(fixedlen_tagger.h)                                        */
+/* BINDTOOL_HEADER_FILE_HASH(3a81d52b374eb2892133ad27a61c51d6)                     */
+/***********************************************************************************/
+
+#include <pybind11/complex.h>
+#include <pybind11/pybind11.h>
+#include <pybind11/stl.h>
+
+namespace py = pybind11;
+
+#include <satellites/fixedlen_tagger.h>
+// pydoc.h is automatically generated in the build directory
+#include <fixedlen_tagger_pydoc.h>
+
+void bind_fixedlen_tagger(py::module& m)
+{
+
+    using fixedlen_tagger    = ::gr::satellites::fixedlen_tagger;
+
+
+    py::class_<fixedlen_tagger, gr::block, gr::basic_block,
+        std::shared_ptr<fixedlen_tagger>>(m, "fixedlen_tagger", D(fixedlen_tagger))
+
+        .def(py::init(&fixedlen_tagger::make),
+           py::arg("sizeof_stream_item"),
+           py::arg("syncword_tag"),
+           py::arg("packetlen_tag"),
+           py::arg("packet_len"),
+           D(fixedlen_tagger,make)
+        )
+
+
+
+
+        ;
+
+
+
+
+}
+
+
+
+
+
+
+
+
diff --git a/python/bindings/python_bindings.cc b/python/bindings/python_bindings.cc
@@ -28,6 +28,7 @@ void bind_decode_rs(py::module& m);
 void bind_descrambler308(py::module& m);
 void bind_distributed_syncframe_soft(py::module& m);
 void bind_encode_rs(py::module& m);
+void bind_fixedlen_tagger(py::module& m);
 void bind_lilacsat1_demux(py::module& m);
 void bind_matrix_deinterleaver_soft(py::module& m);
 void bind_nrzi_decode(py::module& m);
@@ -75,6 +76,7 @@ PYBIND11_MODULE(satellites_python, m)
     bind_descrambler308(m);
     bind_distributed_syncframe_soft(m);
     bind_encode_rs(m);
+    bind_fixedlen_tagger(m);
     bind_lilacsat1_demux(m);
     bind_matrix_deinterleaver_soft(m);
     bind_nrzi_decode(m);

diff --git a/python/fixedlen_tagger.py b/python/fixedlen_tagger.py
diff --git a/python/hier/sync_to_pdu.py b/python/hier/sync_to_pdu.py
@@ -40,7 +40,7 @@ def __init__(self, packlen=0, sync="00011010110011111111110000011101", threshold
         ##################################################
         # Blocks
         ##################################################
-        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger('syncword', 'packet_len', packlen, numpy.byte)
+        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger(gr.sizeof_char, 'syncword', 'packet_len', packlen)
         self.digital_correlate_access_code_tag_bb_0_0_0 = digital.correlate_access_code_tag_bb(sync, threshold, 'syncword')
         self.blocks_tagged_stream_to_pdu_0_0_0 = blocks.tagged_stream_to_pdu(blocks.byte_t, 'packet_len')
 

diff --git a/python/hier/sync_to_pdu_packed.py b/python/hier/sync_to_pdu_packed.py
@@ -40,7 +40,7 @@ def __init__(self, packlen=0, sync="00011010110011111111110000011101", threshold
         ##################################################
         # Blocks
         ##################################################
-        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger('syncword', 'packet_len', packlen*8, numpy.byte)
+        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger(gr.sizeof_char, 'syncword', 'packet_len', packlen*8)
         self.digital_correlate_access_code_tag_bb_0_0_0 = digital.correlate_access_code_tag_bb(sync, threshold, 'syncword')
         self.blocks_unpacked_to_packed_xx_0 = blocks.unpacked_to_packed_bb(1, gr.GR_MSB_FIRST)
         self.blocks_tagged_stream_to_pdu_0_0_0 = blocks.tagged_stream_to_pdu(blocks.byte_t, 'packet_len')

diff --git a/python/hier/sync_to_pdu_soft.py b/python/hier/sync_to_pdu_soft.py
@@ -40,7 +40,7 @@ def __init__(self, packlen=0, sync="00011010110011111111110000011101", threshold
         ##################################################
         # Blocks
         ##################################################
-        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger('syncword', 'packet_len', packlen, numpy.float32)
+        self.satellites_fixedlen_tagger_0_0_0 = satellites.fixedlen_tagger(gr.sizeof_float, 'syncword', 'packet_len', packlen)
         self.digital_correlate_access_code_tag_bb_0_0_0 = digital.correlate_access_code_tag_ff(sync, threshold, 'syncword')
         self.blocks_tagged_stream_to_pdu_0_0_0 = blocks.tagged_stream_to_pdu(blocks.float_t, 'packet_len')
 

diff --git a/python/qa_fixedlen_tagger.py b/python/qa_fixedlen_tagger.py
@@ -37,8 +37,8 @@ def setUp(self):
         self.tag2pdu = blocks.tagged_stream_to_pdu(blocks.byte_t,
                                                        self.packetlen_tag)
         self.debug = blocks.message_debug()
-        self.tagger = fixedlen_tagger(self.syncword_tag, self.packetlen_tag,
-                                          self.packet_len, np.byte)
+        self.tagger = fixedlen_tagger(gr.sizeof_char, self.syncword_tag, self.packetlen_tag,
+                                          self.packet_len)
         self.tb = gr.top_block()
         self.tb.connect(self.source, self.tagger, self.tag2pdu)
         self.tb.msg_connect((self.tag2pdu, 'pdus'), (self.debug, 'store'))