Declare python 3.5 to be the minimal version

python 2 is long gone.
Code in https://github.com/wummel/patool/pull/93 needs python3

.travis.yml

@@ -1,7 +1,6 @@
 language: python
 dist: bionic
 python:
-  - "2.7"
   - "3.5"
   - "3.6"
   - "3.7"
@@ -26,8 +25,6 @@ before_install:
 # Note: pigz gives test errors on Travis CI since option "--" is not
 # supported, but pigz 2.3.1 supports it. Must be an older version.
 
-  # lzma is shipped with python 3 but requires 3rd party bindings on python2
-  - if [[ $TRAVIS_PYTHON_VERSION == 2.7 ]]; then pip install pyliblzma; fi
 
 # command to install dependencies
 install:
@@ -37,14 +34,8 @@ install:
 # command to run tests
 script:
   - make localbuild
-  - if [ $TRAVIS_PYTHON_VERSION = 3.3 ]; then 
+  - COVERAGE="coverage run"
-       COVERAGE= ;
+  - $COVERAGE python -m pytest -v tests/
-       PYTEST="python -m pytest";
-    else 
-       COVERAGE="coverage run" ;
-       PYTEST=`which pytest`;
-    fi
-  - $COVERAGE $PYTEST -v tests/
 
 after_success:
   - if [ ! -z "$COVERAGE" ]; then codecov; fi

setup.py

@@ -19,8 +19,8 @@ Setup file for the distuils module.
 """
 from __future__ import print_function
 import sys
-if not hasattr(sys, "version_info") or sys.version_info < (2, 7, 0, "final", 0):
+if not hasattr(sys, "version_info") or sys.version_info < (3, 5):
-    raise SystemExit("This program requires Python 2.7 or later.")
+    raise SystemExit("This program requires Python 3.5 or later.")
 import os
 import re
 from setuptools import setup
@@ -219,12 +219,12 @@ installed.
         'Topic :: System :: Archiving',
         'Development Status :: 5 - Production/Stable',
         'License :: OSI Approved :: GNU General Public License (GPL)',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.3',
-        'Programming Language :: Python :: 3.4',
         'Programming Language :: Python :: 3.5',
+        'Programming Language :: Python :: 3.6',
+        'Programming Language :: Python :: 3.7',
+        'Programming Language :: Python :: 3.8',
+        'Programming Language :: Python :: 3.9',
         'Operating System :: OS Independent',
     ],
     distclass = MyDistribution,