tox: Bump our Python versions.

.travis.yml

@@ -16,14 +16,14 @@ before_install:
 
 matrix:
     include:
-        - python: 3.6
-          env: TOXENV=py36
-        - python: 3.7
-          env: TOXENV=py37
-        - python: 3.7
+        - python: 3.8
+          env: TOXENV=py38
+        - python: 3.9
+          env: TOXENV=py39
+        - python: 3.9
           env: TOXENV=coverage
 
-install: pip install tox-travis PyGObject dbus-python aioresponses
+install: pip install tox-travis aioresponses
 script: tox
 
 after_success:

setup.py

@@ -27,14 +27,14 @@ setup(
         "peewee >= 3.13.1",
         "janus >= 0.5",
         "cachetools >= 3.0.0",
-        "prompt_toolkit>2<4",
+        "prompt_toolkit > 2, < 4",
         "typing;python_version<'3.5'",
         "matrix-nio[e2e] >= 0.14, < 0.16"
     ],
     extras_require={
         "ui": [
             "dbus-python >= 1.2, < 1.3",
-            "PyGObject >= 3.36, < 3.37",
+            "PyGObject >= 3.36, < 3.39",
             "pydbus >= 0.6, < 0.7",
             "notify2 >= 0.3, < 0.4",
         ]

tox.ini

@@ -1,11 +1,11 @@
 # content of: tox.ini , put in same dir as setup.py
 [tox]
-envlist = py36,py37,coverage
+envlist = py38,py39,coverage
 [testenv]
 basepython =
-    py36: python3.6
-    py37: python3.7
-    py3: python3.7
+    py38: python3.8
+    py39: python3.9
+    py3: python3.9
 
 deps = -rtest-requirements.txt
 install_command = pip install {opts} {packages}
@@ -15,7 +15,7 @@ commands = pytest
 usedevelop = True
 
 [testenv:coverage]
-basepython = python3.7
+basepython = python3.9
 commands =
     pytest --cov=pantalaimon --cov-report term-missing
     coverage xml