diff --git a/astrobee/scripts/cpu_print_version.sh b/astrobee/scripts/cpu_print_version.sh
index 190127cd6c..ed0a17a6a8 100755
--- a/astrobee/scripts/cpu_print_version.sh
+++ b/astrobee/scripts/cpu_print_version.sh
@@ -9,7 +9,7 @@ function deb_version {
   fi
 }
 
-source /opt/ros/kinetic/setup.bash
+source /opt/ros/noetic/setup.bash
 date
 echo "Kernel: $(uname -r)"
 lsb_release -r
diff --git a/hardware/pico_driver/scripts/debug_pico_utils.py b/hardware/pico_driver/scripts/debug_pico_utils.py
index 1848530e78..59c5da902b 100755
--- a/hardware/pico_driver/scripts/debug_pico_utils.py
+++ b/hardware/pico_driver/scripts/debug_pico_utils.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/hardware/pico_driver/scripts/pico_check_split_extended.py b/hardware/pico_driver/scripts/pico_check_split_extended.py
index 90253453fb..82ef553d54 100755
--- a/hardware/pico_driver/scripts/pico_check_split_extended.py
+++ b/hardware/pico_driver/scripts/pico_check_split_extended.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/hardware/pico_driver/scripts/pico_split_extended.py b/hardware/pico_driver/scripts/pico_split_extended.py
index 3a095e77a4..39fd0f380e 100755
--- a/hardware/pico_driver/scripts/pico_split_extended.py
+++ b/hardware/pico_driver/scripts/pico_split_extended.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/hardware/pico_driver/scripts/pico_utils.py b/hardware/pico_driver/scripts/pico_utils.py
index c80845579e..32931d24d7 100644
--- a/hardware/pico_driver/scripts/pico_utils.py
+++ b/hardware/pico_driver/scripts/pico_utils.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/hardware/pico_driver/scripts/pico_write_xyz_coeff.py b/hardware/pico_driver/scripts/pico_write_xyz_coeff.py
index aad7716301..c7416fc580 100755
--- a/hardware/pico_driver/scripts/pico_write_xyz_coeff.py
+++ b/hardware/pico_driver/scripts/pico_write_xyz_coeff.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/localization/sparse_mapping/tools/generate_hugin.py b/localization/sparse_mapping/tools/generate_hugin.py
index ef4196186a..ace166e91d 100755
--- a/localization/sparse_mapping/tools/generate_hugin.py
+++ b/localization/sparse_mapping/tools/generate_hugin.py
@@ -144,10 +144,8 @@ def main():
         srcImage.setFilename(img)
         p.addImage(srcImage)
 
-    # make a c++ std::ofstream to write to
-    ofs = ofstream(output_hugin)
     # write the modified panorama to that stream
-    p.writeData(ofs)
+    p.WritePTOFile(output_hugin)
     # done with it
     del ofs
 
diff --git a/scripts/git/pre-commit.linter_python b/scripts/git/pre-commit.linter_python
index 01b8f7f5bb..2c2f3bbf31 100755
--- a/scripts/git/pre-commit.linter_python
+++ b/scripts/git/pre-commit.linter_python
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 #
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
@@ -71,12 +71,18 @@ echo "  Analysing python code style with 'isort'."
 # could happen for example if the .isort.cfg src_paths list gets out
 # of date.
 
-if $(isort . --extend-skip cmake,submodules --profile black --diff --check-only --quiet >/dev/null); then
+isort_args=(
+    "--extend-skip=cmake"
+    "--extend-skip=submodules"
+    "--extend-skip=debian"
+    "--profile=black"
+)
+if $(isort . "${isort_args[@]}" --diff --check-only --quiet >/dev/null); then
     echo "Linter checks using 'isort' passed."
 else
     echo "Errors detected with 'isort'. Fixing them. Try to add and commit your files again."
-  isort . --extend-skip cmake,submodules --profile black >/dev/null
-  failed_lint=true
+    isort . "${isort_args[@]}" >/dev/null
+    failed_lint=true
 fi
 
 # Cancel commit if linter failed
diff --git a/tools/bag_processing/scripts/apply_histogram_equalization_to_images.py b/tools/bag_processing/scripts/apply_histogram_equalization_to_images.py
index 528626b78a..560e542f1a 100755
--- a/tools/bag_processing/scripts/apply_histogram_equalization_to_images.py
+++ b/tools/bag_processing/scripts/apply_histogram_equalization_to_images.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/check_bag_for_gaps.py b/tools/bag_processing/scripts/check_bag_for_gaps.py
index 2d28b384b8..67f81e2952 100755
--- a/tools/bag_processing/scripts/check_bag_for_gaps.py
+++ b/tools/bag_processing/scripts/check_bag_for_gaps.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/clock_skew.py b/tools/bag_processing/scripts/clock_skew.py
index d9532e2f06..5122ef80b9 100755
--- a/tools/bag_processing/scripts/clock_skew.py
+++ b/tools/bag_processing/scripts/clock_skew.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/csv_join.py b/tools/bag_processing/scripts/csv_join.py
index 82afc6994a..98cc2f3f71 100755
--- a/tools/bag_processing/scripts/csv_join.py
+++ b/tools/bag_processing/scripts/csv_join.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/get_msg_stats.py b/tools/bag_processing/scripts/get_msg_stats.py
index 3dc0f11b61..eced70b9f3 100755
--- a/tools/bag_processing/scripts/get_msg_stats.py
+++ b/tools/bag_processing/scripts/get_msg_stats.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_debayer.py b/tools/bag_processing/scripts/rosbag_debayer.py
index 246cbf7afb..db972541fb 100755
--- a/tools/bag_processing/scripts/rosbag_debayer.py
+++ b/tools/bag_processing/scripts/rosbag_debayer.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_detect_bad_topics.py b/tools/bag_processing/scripts/rosbag_detect_bad_topics.py
index ba970327da..8162dd697d 100755
--- a/tools/bag_processing/scripts/rosbag_detect_bad_topics.py
+++ b/tools/bag_processing/scripts/rosbag_detect_bad_topics.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_fix_all.py b/tools/bag_processing/scripts/rosbag_fix_all.py
index 4fb7b554f6..734916db91 100755
--- a/tools/bag_processing/scripts/rosbag_fix_all.py
+++ b/tools/bag_processing/scripts/rosbag_fix_all.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_merge.py b/tools/bag_processing/scripts/rosbag_merge.py
index d24fa33335..4877b96ff0 100755
--- a/tools/bag_processing/scripts/rosbag_merge.py
+++ b/tools/bag_processing/scripts/rosbag_merge.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_rewrite_types.py b/tools/bag_processing/scripts/rosbag_rewrite_types.py
index 6f1d21780b..04c204279f 100755
--- a/tools/bag_processing/scripts/rosbag_rewrite_types.py
+++ b/tools/bag_processing/scripts/rosbag_rewrite_types.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_sample.py b/tools/bag_processing/scripts/rosbag_sample.py
index 4e8fdebfce..ecfddbc824 100755
--- a/tools/bag_processing/scripts/rosbag_sample.py
+++ b/tools/bag_processing/scripts/rosbag_sample.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_splice.py b/tools/bag_processing/scripts/rosbag_splice.py
index 2ac047381a..d8de7671ce 100755
--- a/tools/bag_processing/scripts/rosbag_splice.py
+++ b/tools/bag_processing/scripts/rosbag_splice.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_topic_filter.py b/tools/bag_processing/scripts/rosbag_topic_filter.py
index cac94fbc1c..e892be43e9 100755
--- a/tools/bag_processing/scripts/rosbag_topic_filter.py
+++ b/tools/bag_processing/scripts/rosbag_topic_filter.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_trim.py b/tools/bag_processing/scripts/rosbag_trim.py
index fc11a59c82..6598a4ed54 100755
--- a/tools/bag_processing/scripts/rosbag_trim.py
+++ b/tools/bag_processing/scripts/rosbag_trim.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/rosbag_verify.py b/tools/bag_processing/scripts/rosbag_verify.py
index 1e5538856c..10fe8ba360 100755
--- a/tools/bag_processing/scripts/rosbag_verify.py
+++ b/tools/bag_processing/scripts/rosbag_verify.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/scripts/utilities/bmr_renumber_enum.py b/tools/bag_processing/scripts/utilities/bmr_renumber_enum.py
index 5d0f46dfb4..3650c35d2f 100755
--- a/tools/bag_processing/scripts/utilities/bmr_renumber_enum.py
+++ b/tools/bag_processing/scripts/utilities/bmr_renumber_enum.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #
diff --git a/tools/bag_processing/test/test_fix_all.py b/tools/bag_processing/test/test_fix_all.py
index f075a1262f..acaab7c0cb 100755
--- a/tools/bag_processing/test/test_fix_all.py
+++ b/tools/bag_processing/test/test_fix_all.py
@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 # Copyright (c) 2017, United States Government, as represented by the
 # Administrator of the National Aeronautics and Space Administration.
 #