Add testing for Python 3.8 and remove 3.5

.travis.yml

@@ -4,13 +4,6 @@ dist: xenial
 
 matrix:
   include:
-    - python: 3.5
-      before_install:
-        - sudo add-apt-repository ppa:mc3man/xerus-media -y
-        - sudo apt-get update -qq
-        - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
-      before_script:
-        ffmpeg --help
     - python: 3.6
       before_install:
         - sudo add-apt-repository ppa:mc3man/xerus-media -y
@@ -25,9 +18,16 @@ matrix:
         - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
       before_script:
         ffmpeg --help
-    - python: 3.6
+    - python: 3.8
+      before_install:
+        - sudo add-apt-repository ppa:mc3man/xerus-media -y
+        - sudo apt-get update -qq
+        - sudo apt-get install -qq ubuntu-restricted-extras ffmpeg
+      before_script:
+        ffmpeg --help
+    - python: 3.8
       env: TOXENV=doc
-    - python: 3.6
+    - python: 3.8
       env: TOXENV=check
   allow_failures:
     - env: TOXENV=check

setup.cfg

@@ -14,9 +14,9 @@ classifiers =
     License :: OSI Approved :: MIT License
     Operating System :: OS Independent
     Programming Language :: Python :: 3
-    Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
     Topic :: Internet :: WWW/HTTP
     Topic :: Multimedia :: Graphics :: Viewers
     Topic :: Software Development :: Libraries :: Python Modules
@@ -25,7 +25,7 @@ classifiers =
 zip_safe = False
 include_package_data = True
 packages = find:
-python_requires = >=3.5
+python_requires = >=3.6
 setup_requires =
     setuptools_scm
 install_requires =

setup.py

@@ -1,7 +1,7 @@
 import sys
 from setuptools import setup
 
-if sys.version_info[:2] < (3, 5):
-    sys.exit('Sigal supports Python 3.5+ only')
+if sys.version_info[:2] < (3, 6):
+    sys.exit('Sigal supports Python 3.6+ only')
 
 setup(use_scm_version=True)

sigal/__init__.py

@@ -46,9 +46,6 @@ __url__ = 'https://github.com/saimn/sigal'
 
 _DEFAULT_CONFIG_FILE = 'sigal.conf.py'
 
-if sys.version_info[:2] < (3, 5):
-    raise Exception('Sigal supports Python 3.5+ only')
-
 
 @click.group()
 @click.version_option(version=__version__)

tox.ini

@@ -1,12 +1,12 @@
 [tox]
-envlist = py{35,36,37}
+envlist = py{36,37,38}
 skip_missing_interpreters = True
 
 [travis]
 python =
-    3.7: py37
     3.6: py36
-    3.5: py35
+    3.7: py37
+    3.8: py38
 
 [testenv]
 deps =