Merge pull request #1705 from akv-platform/al-cheb/set-default-python

[Ubuntu] Default Python will be switched to 3.8 on Ubuntu 20.04

images/linux/scripts/installers/python.sh

@@ -4,21 +4,20 @@
 ##  Desc:  Installs Python 2/3
 ################################################################################
 
+set -e
 # Source the helpers for use with the script
 source $HELPER_SCRIPTS/os.sh
 
 # Install Python, Python 3, pip, pip3
-if isUbuntu20 ; then
-    apt-get install -y --no-install-recommends python3 python3-dev python3-pip
-
-    curl https://bootstrap.pypa.io/get-pip.py --output get-pip.py
-    python2 get-pip.py
-fi
-
 if isUbuntu16 || isUbuntu18; then
     apt-get install -y --no-install-recommends python python-dev python-pip python3 python3-dev python3-pip
 fi
 
+if isUbuntu20; then
+    apt-get install -y --no-install-recommends python3 python3-dev python3-pip
+    ln -s /usr/bin/pip3 /usr/bin/pip
+fi
+
 # Run tests to determine that the software installed as expected
 echo "Testing to make sure that script performed as expected, and basic scenarios work"
 for cmd in python pip python3 pip3; do

images/linux/toolsets/toolset-2004.json

@@ -96,7 +96,7 @@
             "locales",
             "openssh-client",
             "pkg-config",
-            "python-is-python2",
+            "python-is-python3",
             "rpm",
             "texinfo",
             "tk",