Added support for Python 3.7 and 3.8.

Author: chcost

.travis.yml

@@ -16,6 +16,8 @@
 
 language: python
 python:
+  - "3.6"
+  - "3.7"
   - "3.8"
 
 install:

setup.py

@@ -53,7 +53,7 @@
     author='CodeFlare team',
     author_email='chcost@us.ibm.com',
     description='Codeflare pipelines',
-    python_requires='>=3.8',
+    python_requires='>=3.6',
     keywords=("ray pipelines"),
     classifiers=[
         'Development Status :: 4 - Beta',