diff --git a/doc/sphinx/source/tutorials/interfacing_with_paparazzi.rst b/doc/sphinx/source/tutorials/interfacing_with_paparazzi.rst
index d116411107..a765344e9b 100644
--- a/doc/sphinx/source/tutorials/interfacing_with_paparazzi.rst
+++ b/doc/sphinx/source/tutorials/interfacing_with_paparazzi.rst
@@ -28,7 +28,7 @@ This python example shows the reception and emission of messages. For the recept
 .. code-block:: python
     :linenos:
 
-    #!/usr/bin/python3
+    #!/usr/bin/env python3
     import sys
     import time
     import os
diff --git a/doc/sphinx/source/user_guide/shapes_example.py b/doc/sphinx/source/user_guide/shapes_example.py
old mode 100755
new mode 100644
index 9818cfb71f..42b3cdfc6d
--- a/doc/sphinx/source/user_guide/shapes_example.py
+++ b/doc/sphinx/source/user_guide/shapes_example.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 
 import sys
 from os import path, getenv
diff --git a/paparazzi b/paparazzi
index 2fbb8fc89f..542ea37a18 100755
--- a/paparazzi
+++ b/paparazzi
@@ -1,4 +1,4 @@
-#!/usr/bin/env /usr/bin/python3
+#!/usr/bin/env python3
 
 import os
 import sys
diff --git a/sw/ground_segment/python/anemometer_PCE423.py b/sw/ground_segment/python/anemometer_PCE423.py
index ac1d2e9069..72f67692b2 100755
--- a/sw/ground_segment/python/anemometer_PCE423.py
+++ b/sw/ground_segment/python/anemometer_PCE423.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 #
 # This file is part of PPRZLINK.
 # 
diff --git a/sw/ground_segment/python/udp_link/datalink_to_w5100.py b/sw/ground_segment/python/udp_link/datalink_to_w5100.py
index 4088ee7485..c2b3f99184 100755
--- a/sw/ground_segment/python/udp_link/datalink_to_w5100.py
+++ b/sw/ground_segment/python/udp_link/datalink_to_w5100.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 
 from __future__ import print_function
 import os
diff --git a/sw/ground_segment/python/udp_link/proxy_udp_multicast_to_link.py b/sw/ground_segment/python/udp_link/proxy_udp_multicast_to_link.py
index f5ca46c8a2..3231bd7af5 100755
--- a/sw/ground_segment/python/udp_link/proxy_udp_multicast_to_link.py
+++ b/sw/ground_segment/python/udp_link/proxy_udp_multicast_to_link.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 
 from __future__ import print_function
 import os
diff --git a/sw/logalizer/log_extract.py b/sw/logalizer/log_extract.py
index 9675fb6dcb..2f49e9d2e4 100755
--- a/sw/logalizer/log_extract.py
+++ b/sw/logalizer/log_extract.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import sys
 from collections import namedtuple
 from pyproj import CRS, Proj
diff --git a/sw/logalizer/rt_plotter.py b/sw/logalizer/rt_plotter.py
index dc4141e8b6..4899157f02 100755
--- a/sw/logalizer/rt_plotter.py
+++ b/sw/logalizer/rt_plotter.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 import sys
 import signal
 import re
diff --git a/sw/supervision/python/paparazzicenter.py b/sw/supervision/python/paparazzicenter.py
index ba27593562..023c26187c 100755
--- a/sw/supervision/python/paparazzicenter.py
+++ b/sw/supervision/python/paparazzicenter.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # Copyright (C) 2008-2022 The Paparazzi Team
 # released under GNU GPLv2 or later. See COPYING file.
 import os
diff --git a/sw/tools/attitude_viz.py b/sw/tools/attitude_viz.py
index 1d233a36af..a05d878f43 100755
--- a/sw/tools/attitude_viz.py
+++ b/sw/tools/attitude_viz.py
@@ -1,4 +1,4 @@
-#! /usr/bin/python
+#! /usr/bin/env python3
 
 # Tool for visualizing quaternion as rotated cube
 
diff --git a/sw/tools/find_vpaths.py b/sw/tools/find_vpaths.py
index 1b56305350..31519f5b81 100755
--- a/sw/tools/find_vpaths.py
+++ b/sw/tools/find_vpaths.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 #This Python script generates a list of source files.
 #It finds the correct VPATH to each source file from make, and then feeds all info to gcc -MM.
 import sys
diff --git a/sw/tools/process_exif/process_exif.py b/sw/tools/process_exif/process_exif.py
index dc696f82f9..bf64281a92 100644
--- a/sw/tools/process_exif/process_exif.py
+++ b/sw/tools/process_exif/process_exif.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 #
 #       <message NAME="DC_SHOT" ID="110">
 #        <field TYPE="int16" NAME="photo_nr"/>
diff --git a/sw/tools/px4/print_message.py b/sw/tools/px4/print_message.py
index b0cdb4fab0..04e6b0be2f 100755
--- a/sw/tools/px4/print_message.py
+++ b/sw/tools/px4/print_message.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python3
+#!/usr/bin/env python3
 # temporary solution to print a message to reconnect the usb cable
 #At some point hopefully this can be automated (without replugging)
 print("\n ")
diff --git a/sw/tools/qt_project.py b/sw/tools/qt_project.py
index ee086d2784..3d63b72ebb 100755
--- a/sw/tools/qt_project.py
+++ b/sw/tools/qt_project.py
@@ -1,4 +1,4 @@
-#!/usr/bin/python
+#!/usr/bin/env python3
 import sys
 import re
 from os import path, getenv
diff --git a/sw/tools/rtp_viewer/rtp_viewer.py b/sw/tools/rtp_viewer/rtp_viewer.py
index bc81b5e3e3..41012cc878 100755
--- a/sw/tools/rtp_viewer/rtp_viewer.py
+++ b/sw/tools/rtp_viewer/rtp_viewer.py
@@ -1,4 +1,4 @@
-#! /usr/bin/python
+#! /usr/bin/env python3
 
 import cv2
 import sys