Install Python 2.7.13 to RHEL with pip

System's default Python is 2.7.5 and doesn't come
with pip at all. To install its pip, it would require us to
enable the EPEL repository and install it from there.

The repos we use already include Python 2.7.13. If we install that
we get pip as well.

Change-Id: I083a970697a962ddb301616695c2cf419f1229f8
Reviewed-by: Simo Fält <simo.falt@qt.io>
(cherry picked from commit 794913dde7)

coin/provisioning/qtci-linux-RHEL-7.4-x86_64/04-install-packages.sh

@@ -63,8 +63,8 @@ installPackages+=(gtk3-devel)
 installPackages+=(libusbx-devel)
 # speech-dispatcher-devel for QtSpeech, otherwise it has no backend on Linux
 installPackages+=(speech-dispatcher-devel)
-# Python
-installPackages+=(python-devel python-virtualenv)
+# Python 2.7 with python-devel, pip and virtualenv
+installPackages+=(python27)
 # Python 3 with python-devel, pip and virtualenv
 installPackages+=(rh-python36)
 # WebEngine
@@ -88,5 +88,8 @@ installPackages+=(bluez-libs-devel)
 sudo yum -y update
 sudo yum -y install "${installPackages[@]}"
 
+# Make python 2.7 and its pip default
+echo "source scl_source enable python27" >> ~/.bashrc
+
 sudo ln -s /opt/rh/rh-python36/root/usr/bin/python3 /usr/local/bin/python3
 sudo ln -s /opt/rh/rh-python36/root/usr/bin/pip3 /usr/local/bin/pip3