Compile Python3 on RHEL-7

Change-Id: I20a8764560174fde7cee9147afd0bd3dc01bfb51

roles/tobiko-compile-python/defaults/main.yaml

@@ -2,7 +2,7 @@
 setup_python: true
 setup_pip: true
 
-python_release: "3.7.5"
+python_release: "3.7.7"
 python_version: "3.7"
 python_command: "python3"
 python_name: "Python-{{ python_release }}"
@@ -32,7 +32,6 @@ yum_install_packages:
   - expat-devel
   - gdbm-devel
   - libffi-devel
-  - libpcap-devel
   - ncurses-devel
   - openssl-devel
   - readline-devel

roles/tobiko-ensure-python3/defaults/main.yaml

@@ -16,3 +16,5 @@ python_command: 'python{{ python_version }}'
 
 python_packages: {}
 python_info: {}
+
+compile_python3: no

roles/tobiko-ensure-python3/tasks/install.yaml

@@ -13,6 +13,12 @@
   when: install_python_packages is changed
 
 
+- name: "compile python 3 from sources"
+  include_role: name=tobiko-compile-python
+  when:
+    - compile_python3 | bool
+
+
 - name: "get '{{ python_command }}' full path"
   shell: |
     export PATH={{ python_exe_path }}

roles/tobiko-ensure-python3/vars/RedHat-7.yaml

@@ -1,7 +1,3 @@
 ---
 
-python_packages:
-  python3:
-    - python3
-  python3.6:
-    - python36
+compile_python3: yes