7 files changed, 10 insertions, 4 deletions
diff --git a/Examples/Tests/Langmuir/PICMI_inputs_langmuir2d.py b/Examples/Tests/Langmuir/PICMI_inputs_langmuir2d.py
index 1dc19572d..4b9c3ac30 100644..100755
--- a/Examples/Tests/Langmuir/PICMI_inputs_langmuir2d.py
+++ b/Examples/Tests/Langmuir/PICMI_inputs_langmuir2d.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+#
 # --- Simple example of Langmuir oscillations in a uniform plasma
 # --- in two dimensions
 
diff --git a/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rt.py b/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rt.py
index e39d60006..180180f5f 100644..100755
--- a/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rt.py
+++ b/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rt.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+#
 # --- Simple example of Langmuir oscillations in a uniform plasma
 
 from pywarpx import picmi
diff --git a/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rz_multimode_analyze.py b/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rz_multimode_analyze.py
index 22ab1679b..736cf3b5b 100644..100755
--- a/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rz_multimode_analyze.py
+++ b/Examples/Tests/Langmuir/PICMI_inputs_langmuir_rz_multimode_analyze.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+#
 # This is a script that analyses the multimode simulation results.
 # This simulates a RZ multimode periodic plasma wave.
 # The electric field from the simulation is compared to the analytic value
diff --git a/Examples/Tests/Langmuir/analysis_langmuir_multi.py b/Examples/Tests/Langmuir/analysis_langmuir_multi.py
index 436d15e4f..7ca6a4301 100755
--- a/Examples/Tests/Langmuir/analysis_langmuir_multi.py
+++ b/Examples/Tests/Langmuir/analysis_langmuir_multi.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019 Jean-Luc Vay, Maxence Thevenet, Remi Lehe
 #
diff --git a/Examples/Tests/Langmuir/analysis_langmuir_multi_1d.py b/Examples/Tests/Langmuir/analysis_langmuir_multi_1d.py
index 5cb52de23..5fb03e459 100755
--- a/Examples/Tests/Langmuir/analysis_langmuir_multi_1d.py
+++ b/Examples/Tests/Langmuir/analysis_langmuir_multi_1d.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019-2021 Jean-Luc Vay, Maxence Thevenet, Remi Lehe, Prabhat Kumar
 #
diff --git a/Examples/Tests/Langmuir/analysis_langmuir_multi_2d.py b/Examples/Tests/Langmuir/analysis_langmuir_multi_2d.py
index 8bfd972cc..debf2b7ba 100755
--- a/Examples/Tests/Langmuir/analysis_langmuir_multi_2d.py
+++ b/Examples/Tests/Langmuir/analysis_langmuir_multi_2d.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019 Jean-Luc Vay, Maxence Thevenet, Remi Lehe
 #
diff --git a/Examples/Tests/Langmuir/analysis_langmuir_multi_rz.py b/Examples/Tests/Langmuir/analysis_langmuir_multi_rz.py
index b0425a382..a3cdeb12b 100755
--- a/Examples/Tests/Langmuir/analysis_langmuir_multi_rz.py
+++ b/Examples/Tests/Langmuir/analysis_langmuir_multi_rz.py
@@ -1,4 +1,4 @@
-#! /usr/bin/env python
+#!/usr/bin/env python3
 
 # Copyright 2019 David Grote, Maxence Thevenet
 #