diff --git a/f4pga/setup.py b/f4pga/setup.py
index 286c0cf..50a65cf 100644
--- a/f4pga/setup.py
+++ b/f4pga/setup.py
@@ -92,7 +92,6 @@ setuptools_setup(
             'platforms/*.json'
         ],
         'f4pga.wrappers.sh': [
-            '*.f4pga.sh',
             'xc7/*.f4pga.sh',
             'quicklogic/*.f4pga.sh'
         ]
diff --git a/f4pga/wrappers/sh/__init__.py b/f4pga/wrappers/sh/__init__.py
index 9009741..19c0171 100644
--- a/f4pga/wrappers/sh/__init__.py
+++ b/f4pga/wrappers/sh/__init__.py
@@ -91,6 +91,14 @@ def write_bitstream():
     run_sh(ROOT / SH_SUBDIR / "write_bitstream.f4pga.sh")
 
 
+def genfasm(extra_args):
+    check_call(f"""
+'{which('genfasm')}' ${{ARCH_DEF}} \
+  ${{EBLIF}} --device ${{DEVICE_NAME}} ${{VPR_OPTIONS}} --read_rr_graph ${{RR_GRAPH}} \
+  {' '.join(extra_args)}
+""", env=f4pga_environ, shell=True, executable='/bin/bash')
+
+
 def write_fasm():
     print("[F4PGA] Running (deprecated) write fasm")
     run_sh(ROOT / SH_SUBDIR / "write_fasm.f4pga.sh")
diff --git a/f4pga/wrappers/sh/genfasm.f4pga.sh b/f4pga/wrappers/sh/genfasm.py
old mode 100755
new mode 100644
similarity index 70%
rename from f4pga/wrappers/sh/genfasm.f4pga.sh
rename to f4pga/wrappers/sh/genfasm.py
index 9767c89..70cab3f
--- a/f4pga/wrappers/sh/genfasm.f4pga.sh
+++ b/f4pga/wrappers/sh/genfasm.py
@@ -1,23 +1,27 @@
-#!/usr/bin/env bash
-#
-# Copyright (C) 2020-2022 F4PGA Authors.
-#
-# 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
-#
-#     https://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.
-#
-# SPDX-License-Identifier: Apache-2.0
-
-set -e
-
-"`which genfasm`" ${ARCH_DEF} \
-  ${EBLIF} --device ${DEVICE_NAME} ${VPR_OPTIONS} --read_rr_graph ${RR_GRAPH} \
-  $@
+#!/usr/bin/env python3
+# -*- coding: utf-8 -*-
+#
+# Copyright (C) 2020-2022 F4PGA Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+# SPDX-License-Identifier: Apache-2.0
+#
+# Python entrypoints to the shell wrappers moved from arch-defs
+
+from sys import argv as sys_argv
+
+from f4pga.wrappers.sh import genfasm
+
+if __name__ == '__main__':
+    genfasm(sys_argv[1:])
diff --git a/f4pga/wrappers/sh/quicklogic/write_fasm.f4pga.sh b/f4pga/wrappers/sh/quicklogic/write_fasm.f4pga.sh
index 95e1d19..dd16153 100755
--- a/f4pga/wrappers/sh/quicklogic/write_fasm.f4pga.sh
+++ b/f4pga/wrappers/sh/quicklogic/write_fasm.f4pga.sh
@@ -31,7 +31,7 @@ EBLIF="$EBLIF" \
 DEVICE_NAME="$DEVICE_NAME" \
 VPR_OPTIONS="$VPR_OPTIONS" \
 RR_GRAPH="$RR_GRAPH" \
-  $(dirname "$0")/../genfasm.f4pga.sh
+  python3 -m f4pga.wrappers.sh.genfasm
 
 echo "FASM extra: $FASM_EXTRA"
 if [ -f $FASM_EXTRA ]; then
diff --git a/f4pga/wrappers/sh/xc7/write_fasm.f4pga.sh b/f4pga/wrappers/sh/xc7/write_fasm.f4pga.sh
index 868e5f8..dc68e0c 100755
--- a/f4pga/wrappers/sh/xc7/write_fasm.f4pga.sh
+++ b/f4pga/wrappers/sh/xc7/write_fasm.f4pga.sh
@@ -31,7 +31,7 @@ EBLIF="$EBLIF" \
 DEVICE_NAME="$DEVICE_NAME" \
 VPR_OPTIONS="$VPR_OPTIONS" \
 RR_GRAPH="$RR_GRAPH" \
-  $(dirname "$0")/../genfasm.f4pga.sh
+  python3 -m f4pga.wrappers.sh.genfasm
 
 echo "FASM extra: $FASM_EXTRA"
 if [ -f $FASM_EXTRA ]; then