initial batch of changes to drop py2 (no code changes)

Author: Joseph Hamman

.travis.yml

@@ -24,7 +24,6 @@ services:
 
 matrix:
   include:
-    - python: 2.7
     - python: 3.5
     - python: 3.6
     - python: 3.7

appveyor.yml

@@ -18,10 +18,6 @@ environment:
 
   matrix:
 
-    - PYTHON: "C:\\Python27-x64"
-      PYTHON_VERSION: "2.7"
-      DISTUTILS_USE_SDK: "1"
-
     - PYTHON: "C:\\Python35-x64"
       PYTHON_VERSION: "3.5"
 

build.cmd

@@ -23,9 +23,7 @@ SET COMMAND_TO_RUN=%*
 SET WIN_SDK_ROOT=C:\Program Files\Microsoft SDKs\Windows
 
 SET MAJOR_PYTHON_VERSION="%PYTHON_VERSION:~0,1%"
-IF %MAJOR_PYTHON_VERSION% == "2" (
-    SET WINDOWS_SDK_VERSION="v7.0"
-) ELSE IF %MAJOR_PYTHON_VERSION% == "3" (
+IF %MAJOR_PYTHON_VERSION% == "3" (
     SET WINDOWS_SDK_VERSION="v7.1"
 ) ELSE (
     ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"

docs/conf.py

@@ -16,25 +16,6 @@
 
 import sys
 import os
-from mock import Mock as MagicMock
-
-
-PY2 = sys.version_info[0] == 2
-
-
-class Mock(MagicMock):
-    @classmethod
-    def __getattr__(cls, name):
-        return Mock()
-
-
-MOCK_MODULES = []
-if PY2:
-    MOCK_MODULES.append('lzma')
-
-
-sys.modules.update((mod_name, Mock()) for mod_name in MOCK_MODULES)
-
 
 # If extensions (or modules to document with autodoc) are in another directory,
 # add these directories to sys.path here. If the directory is relative to the

setup.py

@@ -35,6 +35,7 @@
         'setuptools>18.0',
         'setuptools-scm>1.5.4'
     ],
+    python_requires='>=3.5',
     install_requires=dependencies,
     package_dir={'': '.'},
     packages=['zarr', 'zarr.tests'],
@@ -47,8 +48,6 @@
         'Programming Language :: Python',
         'Topic :: Software Development :: Libraries :: Python Modules',
         'Operating System :: Unix',
-        'Programming Language :: Python :: 2',
-        'Programming Language :: Python :: 2.7',
         'Programming Language :: Python :: 3',
         'Programming Language :: Python :: 3.5',
         'Programming Language :: Python :: 3.6',

tox.ini

@@ -4,15 +4,14 @@
 # and then run "tox" from this directory.
 
 [tox]
-envlist = py27, py35, py36, py37-npy{115,116,latest}, docs
+envlist = py35, py36, py37-npy{115,116,latest}, docs
 
 [testenv]
 install_command = pip install --no-binary=numcodecs {opts} {packages}
 setenv =
     PYTHONHASHSEED = 42
     # hooks for coverage exclusions based on Python major version
     py35,py36,py37: PY_MAJOR_VERSION = py3
-    py27: PY_MAJOR_VERSION = py2
 passenv =
     ZARR_TEST_ABS
     ZARR_TEST_MONGO
@@ -21,24 +20,23 @@ commands =
     # clear out any data files generated during tests
     python -c 'import glob; import shutil; import os; [(shutil.rmtree(d) if os.path.isdir(d) else os.remove(d) if os.path.isfile(d) else None) for d in glob.glob("./example*")]'
     # main unit test runner
-    py27,py35,py36: pytest -v --cov=zarr --cov-config=.coveragerc zarr
+    py35,py36: pytest -v --cov=zarr --cov-config=.coveragerc zarr
     # don't collect coverage when running older numpy versions
     py37-{npy115,npy116}: pytest -v zarr
     # collect coverage and run doctests under py37
     py37-npylatest: pytest -v --cov=zarr --cov-config=.coveragerc --doctest-plus zarr --remote-data
     # generate a coverage report
-    py27,py35,py36,py37-npylatest: coverage report -m
+    py35,py36,py37-npylatest: coverage report -m
     # run doctests in the tutorial and spec
     py37-npylatest: python -m doctest -o NORMALIZE_WHITESPACE -o ELLIPSIS docs/tutorial.rst docs/spec/v2.rst
     # pep8 checks
     py37-npylatest: flake8 zarr
     # print environment for debugging
     pip freeze
 deps =
-    py27: backports.lzma
     py37-npy115: numpy==1.15.4
     py37-npy116: numpy==1.16.4
-    py27,py35,py36,py37-npylatest: -rrequirements_dev_numpy.txt
+    py35,py36,py37-npylatest: -rrequirements_dev_numpy.txt
     -rrequirements_dev_minimal.txt
     -rrequirements_dev_optional.txt