Tools: use python3 -m pip to install Python packages

Tools/AP_Periph/wscript

@@ -7,13 +7,13 @@ import sys
 try:
     import em
 except ImportError:
-    print("you need to install empy with 'python -m pip install empy==3.3.4'")
+    print("you need to install empy with 'python3 -m pip install empy==3.3.4'")
     sys.exit(1)
 
 try:
     import pexpect
 except ImportError:
-    print("you need to install pexpect with 'python -m pip install pexpect'")
+    print("you need to install pexpect with 'python3 -m pip install pexpect'")
     sys.exit(1)
 
 

Tools/environment_install/install-prereqs-arch.sh

@@ -71,7 +71,7 @@ else
     echo "Please use \`$SOURCE_LINE\` to activate the ArduPilot venv"
 fi
 
-pip3 -q install -U $PYTHON_PKGS
+python3 -m pip -q install -U $PYTHON_PKGS
 
 (
     cd /usr/lib/ccache

Tools/environment_install/install-prereqs-mac.sh

@@ -108,7 +108,7 @@ find /usr/local/bin -lname '*/Library/Frameworks/Python.framework/*' -delete
 brew update
 brew install --force --overwrite gawk coreutils wget
 
-PIP=pip
+PIP="python3 -m pip"
 if maybe_prompt_user "Install python using pyenv [N/y]?" ; then
     echo "Checking pyenv..."
     {

Tools/environment_install/install-prereqs-openSUSE-Tumbleweed.sh

@@ -35,9 +35,9 @@ ZYPPER="sudo zypper in --no-recommends"
 if $ASSUME_YES; then
     ZYPPER="sudo zypper in -y --no-recommends"
 fi
-PIP3=pip3
+PIP3="python3 -m pip"
 if $QUIET; then
-    PIP3="pip3 -q"
+    PIP3="$PIP3 -q"
 fi
 
 function package_is_installed() {

Tools/ros2/README.md

@@ -191,7 +191,7 @@ install MAVProxy if it is not available on the container.
 
 
 ```bash
-pip install -U MAVProxy
+python3 -m pip install -U MAVProxy
 ```
 
 

Tools/scripts/configure-ci.sh

@@ -97,8 +97,8 @@ fi
 
 . ~/.profile
 
-python -m pip install --progress-bar off --user -U argparse pyserial pexpect future lxml
-python -m pip install --progress-bar off --user -U intelhex
-python -m pip install --progress-bar off --user -U numpy
-python -m pip install --progress-bar off --user -U edn_format
-python -m pip install --progress-bar off --user -U empy==3.3.4
+python3 -m pip install --progress-bar off --user -U argparse pyserial pexpect future lxml
+python3 -m pip install --progress-bar off --user -U intelhex
+python3 -m pip install --progress-bar off --user -U numpy
+python3 -m pip install --progress-bar off --user -U edn_format
+python3 -m pip install --progress-bar off --user -U empy==3.3.4

Tools/scripts/esp32_get_idf.sh

@@ -58,9 +58,9 @@ git submodule update --init --recursive
 
 echo
 echo "installing missing python modules"
-python -m pip install empy==3.3.4
-python -m pip install pexpect
-python -m pip install future
+python3 -m pip install empy==3.3.4
+python3 -m pip install pexpect
+python3 -m pip install future
 
 cd ../..
 

Tools/scripts/size_compare_branches.py

@@ -5,7 +5,7 @@
 to create a html report comparing an ArduPilot build across two
 branches
 
-pip3 install --user elf_diff weasyprint
+python3 -m pip install --user elf_diff weasyprint
 
 AP_FLAKE8_CLEAN