migrate to py38

.travis.yml

@@ -17,8 +17,7 @@ cache:
   - pip
 
 python:
-  - "3.6"
-  - "3.7"
+  - "3.8"
 
 services:
   - docker

CHANGES.rst

@@ -4,6 +4,7 @@ Changes
 Version master (UNRELEASED)
 ---------------------------
 
+- Uses python3.8
 - Pins all Python dependencies allowing to easily rebuild component images at later times.
 - Adds VOMS proxy support as a new authentication method.
 - Supports running unpacked Docker images from CVMFS on HTCondor jobs.

Dockerfile

@@ -5,7 +5,7 @@
 # under the terms of the MIT License; see LICENSE file for more details.
 
 # Install base image and its dependencies
-FROM python:3.6-slim
+FROM python:3.8-slim
 RUN apt-get update && \
     apt-get install -y vim-tiny && \
     pip install --upgrade pip

requirements.txt

@@ -23,7 +23,7 @@ flask==1.1.2              # via reana-job-controller (setup.py)
 fs==2.4.11                # via reana-job-controller (setup.py)
 google-auth==1.18.0       # via kubernetes
 gssapi==1.6.9             # via paramiko
-htcondor==8.9.2           # via reana-job-controller (setup.py)
+htcondor==8.9.7           # via reana-job-controller (setup.py)
 idna==2.10                # via jsonschema, requests
 importlib-metadata==1.7.0  # via jsonschema, kombu
 itsdangerous==1.1.0       # via flask

setup.py

@@ -52,7 +52,7 @@
     "marshmallow>2.13.0,<=2.20.1",
     "reana-commons[kubernetes]>=0.7.0a2,<0.8.0",
     "reana-db>=0.7.0.dev20200410,<0.8.0",
-    "htcondor==8.9.2",
+    "htcondor==8.9.7",
     "retrying>=1.3.3",
     "paramiko[gssapi]>=2.6.0",
 ]
@@ -88,8 +88,7 @@
         "License :: OSI Approved :: MIT License",
         "Operating System :: OS Independent",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.6",
-        "Programming Language :: Python :: 3.7",
+        "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: Implementation :: CPython",
         "Programming Language :: Python",
         "Topic :: Internet :: WWW/HTTP :: Dynamic Content",