Drop support for Python 2.7

It's dead, Jim.

Signed-off-by: Stephen Finucane <stephen@that.guru>

Author: stephenfin

.travis.yml

@@ -2,7 +2,6 @@ language: python
 sudo: false
 cache: pip
 python:
-- 2.7
 - 3.5
 - 3.6
 - 3.7

git_pw/utils.py

@@ -5,22 +5,24 @@
 from __future__ import print_function
 
 import csv
+import io
 import os
 import subprocess
 import sys
 
 import click
-import six
 from tabulate import tabulate
 
 
 def ensure_str(s):
     if s is None:
         s = ''
-    elif not isinstance(s, (six.text_type, six.binary_type)):
+    elif isinstance(s, bytes):
+        s = s.decode('utf-8', 'strict')
+    elif not isinstance(s, str):
         s = str(s)
 
-    return six.ensure_str(s)
+    return s
 
 
 def trim(string, length=70):  # type: (str, int) -> str
@@ -68,7 +70,7 @@ def _tabulate(output, headers, fmt):
     elif fmt == 'simple':
         return tabulate(output, headers, tablefmt='simple')
     elif fmt == 'csv':
-        result = six.StringIO()
+        result = io.StringIO()
         writer = csv.writer(
             result, quoting=csv.QUOTE_ALL, lineterminator=os.linesep)
         writer.writerow([ensure_str(h) for h in headers])
@@ -89,7 +91,9 @@ def _echo_via_pager(pager, output):
 
     pager = subprocess.Popen(pager.split(), stdin=subprocess.PIPE, env=env)
 
-    output = six.ensure_binary(output)
+    # TODO(stephenfin): This is potential hangover from Python 2 days
+    if not isinstance(output, bytes):
+        output = output.encode('utf-8', 'strict')
 
     try:
         pager.communicate(input=output)

requirements.txt

@@ -2,4 +2,3 @@ click>=6.0,<8.0
 requests>2.0,<3.0
 tabulate>=0.8
 arrow>=0.10
-six>=1.12

setup.cfg

@@ -5,11 +5,11 @@ description-file = README.rst
 license = MIT License
 license_file = LICENSE
 classifiers =
-    Programming Language :: Python :: 2.7
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
     Programming Language :: Python :: 3.7
+    Programming Language :: Python :: 3.8
     Programming Language :: Python
     Development Status :: 4 - Beta
     Environment :: Console
@@ -25,7 +25,7 @@ project_urls =
     Bug Tracker = https://github.com/getpatchwork/git-pw/issues
     Source Code = https://github.com/getpatchwork/git-pw
     Documentation = https://git-pw.readthedocs.io
-python_requires = >=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*
+python_requires = >=3.5
 
 [files]
 packages =
@@ -34,6 +34,3 @@ packages =
 [entry_points]
 console_scripts =
     git-pw = git_pw.shell:cli
-
-[bist_wheel]
-universal = 1

setup.py

@@ -1,4 +1,4 @@
-#!/usr/bin/env python
+#!/usr/bin/env python3
 
 from setuptools import setup
 

test-requirements.txt

@@ -1,4 +1,3 @@
 mock~=3.0.0
-pytest>=3.0,<6.0;python_version>='3.5'
-pytest>=3.0,<5.0;python_version=='2.7'
+pytest>=3.0,<6.0
 pytest-cov~=2.5