BOM-1538 : Add Python 3.8 to testing

.travis.yml

@@ -1,29 +1,15 @@
 language: python
 python:
-  - "2.7"
   - "3.5"
+  - "3.8"
 
 env:
-  - TOXENV=django111
-  - TOXENV=django20
-  - TOXENV=django21
   - TOXENV=django22
-
-matrix:
-  exclude:
-    - python: "2.7"
-      env: TOXENV=django20
-    - python: "2.7"
-      env: TOXENV=django21
-    - python: "2.7"
-      env: TOXENV=django22
-  include:
-    - python: "3.5"
-      env: TOXENV=quality
-    - python: "3.5"
-      env: TOXENV=without-django
+  - TOXENV=quality
+  - TOXENV=without-django
 
 install:
+  - pip install pip==20.0.2
   - make requirements
   - pip install coveralls
 script:
@@ -38,6 +24,6 @@ deploy:
   on:
     tags: true
     python: "3.5"
-    condition: "$TOXENV = django111"
+    condition: "$TOXENV = django22"
     distributions: sdist bdist_wheel
     repo: edx/opaque-keys

opaque_keys/edx/django/models.py

@@ -23,7 +23,7 @@
 log = logging.getLogger(__name__)
 
 
-class _Creator(object):
+class _Creator:
     """
     DO NOT REUSE THIS CLASS. Provided for backwards compatibility only!
 
@@ -42,7 +42,7 @@ def __set__(self, obj, value):
 
 
 # pylint: disable=missing-docstring,unused-argument
-class CreatorMixin(object):
+class CreatorMixin:
     """
     Mixin class to provide SubfieldBase functionality to django fields.
     See: https://docs.djangoproject.com/en/1.11/releases/1.8/#subfieldbase

opaque_keys/edx/django/tests/models.py

@@ -16,7 +16,7 @@
 )
 
 
-class Container(object):
+class Container:
     """A simple wrapper class for string-like objects."""
 
     def __init__(self, text):

opaque_keys/edx/keys.py

@@ -107,7 +107,7 @@ def block_type(self):  # pragma: no cover
         raise NotImplementedError()
 
 
-class CourseObjectMixin(object):
+class CourseObjectMixin:
     """
     An abstract :class:`opaque_keys.OpaqueKey` mixin
     for keys that belong to courses.

opaque_keys/edx/locations.py

@@ -65,7 +65,7 @@ def replace(self, **kwargs):
         )
 
 
-class LocationBase(object):
+class LocationBase:
     """Deprecated. Base class for :class:`Location` and :class:`AssetLocation`"""
 
     DEPRECATED_TAG = None  # Subclasses should define what DEPRECATED_TAG is

opaque_keys/edx/locator.py

@@ -9,7 +9,6 @@
 import re
 from uuid import UUID
 import warnings
-from abc import abstractproperty
 
 from bson.errors import InvalidId
 from bson.objectid import ObjectId
@@ -23,7 +22,7 @@
 log = logging.getLogger(__name__)
 
 
-class LocalId(object):
+class LocalId:
     """
     Class for local ids for non-persisted xblocks (which can have hardcoded block_ids if necessary)
     """
@@ -48,7 +47,7 @@ class Locator(OpaqueKey):
     ALLOWED_ID_CHARS = r'[\w\-~.:]'
     DEPRECATED_ALLOWED_ID_CHARS = r'[\w\-~.:%]'
 
-    @abstractproperty
+    @property
     def version(self):  # pragma: no cover
         """
         Returns the ObjectId referencing this specific location.
@@ -72,7 +71,7 @@ def as_object_id(cls, value):
             raise InvalidKeyError(cls, u'"%s" is not a valid version_guid' % value)
 
 
-class CheckFieldMixin(object):
+class CheckFieldMixin:
     """
     Mixin that provides handy methods for checking field types/values.
     """
@@ -1220,14 +1219,15 @@ def _from_string(cls, serialized):
 
         return cls(**{key: parse.get(key) for key in cls.KEY_FIELDS})
 
+    @property
     def version(self):
         """
         Returns the ObjectId referencing this specific location.
         """
         return self.definition_id
 
 
-class VersionTree(object):
+class VersionTree:
     """
     Holds trees of Locators to represent version histories.
     """

opaque_keys/edx/tests/test_locators.py

@@ -40,7 +40,7 @@ def test_description_locator_url(self):
     def test_description_locator_version(self):
         object_id = '{:024x}'.format(random.randrange(16 ** 24))
         definition_locator = DefinitionLocator('html', object_id)
-        self.assertEqual(object_id, str(definition_locator.version()))
+        self.assertEqual(object_id, str(definition_locator.version))
 
 
 @ddt.ddt

opaque_keys/tests/strategies.py

@@ -2,13 +2,12 @@
 ``hypothesis`` strategies for generating OpaqueKey objects.
 """
 
-from functools import update_wrapper
+from functools import singledispatch, update_wrapper
 import string
 from six import text_type
 
 from hypothesis import strategies, assume
 from hypothesis.strategies._internal.core import cacheable
-from singledispatch import singledispatch
 
 from opaque_keys.edx.block_types import BlockTypeKeyV1, XBLOCK_V1, XMODULE_V1
 from opaque_keys.edx.asides import (

requirements/constraints.txt

@@ -8,6 +8,9 @@
 # pin when possible.  Writing an issue against the offending project and
 # linking to it here is good.
 
-# These packages are backports which can only be installed on Python 2.7
-functools32 ; python_version == "2.7"
-futures ; python_version == "2.7"
+# pytest command fails if pytest > 5.3 is used
+# Look into https://github.com/pytest-dev/pytest/issues/6925
+pytest<=5.3
+
+# version >= 0.16 requires pytest >= 5.4
+pytest-pylint<0.16

requirements/dev.txt

@@ -7,90 +7,81 @@
 alabaster==0.7.12         # via -r requirements/doc.txt, sphinx
 apipkg==1.5               # via -r requirements/doc.txt, execnet
 appdirs==1.4.3            # via -r requirements/travis.txt, virtualenv
-astroid==1.6.6            # via -r requirements/doc.txt, pylint, pylint-celery
-atomicwrites==1.3.0       # via -r requirements/doc.txt, pytest
+astroid==2.3.3            # via -r requirements/doc.txt, pylint, pylint-celery
 attrs==19.3.0             # via -r requirements/doc.txt, hypothesis, pytest
 babel==2.8.0              # via -r requirements/doc.txt, sphinx
-backports.functools-lru-cache==1.6.1  # via -r requirements/doc.txt, astroid, isort, pylint
 bleach==3.1.4             # via -r requirements/doc.txt, readme-renderer
-certifi==2020.4.5.1       # via -r requirements/doc.txt, -r requirements/travis.txt, requests, urllib3
-cffi==1.14.0              # via -r requirements/travis.txt, cryptography
+certifi==2020.4.5.1       # via -r requirements/doc.txt, -r requirements/travis.txt, requests
 chardet==3.0.4            # via -r requirements/doc.txt, -r requirements/travis.txt, requests
 click-log==0.3.2          # via -r requirements/doc.txt, edx-lint
-click==7.1.1              # via -r requirements/doc.txt, -r requirements/pip-tools.txt, click-log, edx-lint, pip-tools
-configparser==4.0.2       # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-metadata, pylint
-contextlib2==0.6.0.post1  # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-metadata, importlib-resources, virtualenv, zipp
+click==7.1.2              # via -r requirements/doc.txt, -r requirements/pip-tools.txt, click-log, edx-lint, pip-tools
 coverage==5.1             # via -r requirements/doc.txt, -r requirements/travis.txt, coveralls, pytest-cov
-coveralls==1.11.1         # via -r requirements/travis.txt
-cryptography==2.9.2       # via -r requirements/travis.txt, pyopenssl, urllib3
+coveralls==2.0.0          # via -r requirements/travis.txt
 ddt==1.3.1                # via -r requirements/doc.txt
 distlib==0.3.0            # via -r requirements/travis.txt, virtualenv
 docopt==0.6.2             # via -r requirements/travis.txt, coveralls
 docutils==0.16            # via -r requirements/doc.txt, readme-renderer, sphinx
 edx-lint==1.4.1           # via -r requirements/doc.txt
 edx-sphinx-theme==1.5.0   # via -r requirements/doc.txt
-enum34==1.1.10            # via -r requirements/doc.txt, -r requirements/travis.txt, astroid, cryptography, hypothesis
 execnet==1.7.1            # via -r requirements/doc.txt, pytest-cache, pytest-xdist
 filelock==3.0.12          # via -r requirements/travis.txt, tox, virtualenv
-funcsigs==1.0.2           # via -r requirements/doc.txt, mock, pytest
-futures==3.3.0 ; python_version == "2.7"  # via -c requirements/constraints.txt, -r requirements/doc.txt, isort
-hypothesis==4.57.1        # via -r requirements/doc.txt
-idna==2.9                 # via -r requirements/doc.txt, -r requirements/travis.txt, requests, urllib3
+hypothesis==5.10.4        # via -r requirements/doc.txt
+idna==2.9                 # via -r requirements/doc.txt, -r requirements/travis.txt, requests
 imagesize==1.2.0          # via -r requirements/doc.txt, sphinx
 importlib-metadata==1.6.0  # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-resources, pluggy, pytest, tox, virtualenv
-importlib-resources==1.4.0  # via -r requirements/travis.txt, virtualenv
-ipaddress==1.0.23         # via -r requirements/travis.txt, cryptography, urllib3
+importlib-resources==1.5.0  # via -r requirements/travis.txt, virtualenv
 isort==4.3.21             # via -r requirements/doc.txt, pylint
 jinja2==2.11.2            # via -r requirements/doc.txt, sphinx
 lazy-object-proxy==1.4.3  # via -r requirements/doc.txt, astroid
 markupsafe==1.1.1         # via -r requirements/doc.txt, jinja2
 mccabe==0.6.1             # via -r requirements/doc.txt, pylint
 mock==3.0.5               # via -r requirements/doc.txt
-more-itertools==5.0.0     # via -r requirements/doc.txt, pytest
+more-itertools==8.2.0     # via -r requirements/doc.txt, pytest
 packaging==20.3           # via -r requirements/doc.txt, -r requirements/travis.txt, pytest, sphinx, tox
-pathlib2==2.3.5           # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-metadata, importlib-resources, pytest, virtualenv
+pathlib2==2.3.5           # via -r requirements/doc.txt, pytest
 pbr==5.4.5                # via -r requirements/doc.txt, stevedore
 pep8==1.7.1               # via -r requirements/doc.txt, pytest-pep8
-pip-tools==5.0.0          # via -r requirements/pip-tools.txt
+pip-tools==5.1.0          # via -r requirements/pip-tools.txt
 pluggy==0.13.1            # via -r requirements/doc.txt, -r requirements/travis.txt, pytest, tox
 py==1.8.1                 # via -r requirements/doc.txt, -r requirements/travis.txt, pytest, tox
 pycodestyle==2.5.0        # via -r requirements/doc.txt
-pycparser==2.20           # via -r requirements/travis.txt, cffi
-pygments==2.5.2           # via -r requirements/doc.txt, readme-renderer, sphinx
+pygments==2.6.1           # via -r requirements/doc.txt, readme-renderer, sphinx
 pylint-celery==0.3        # via -r requirements/doc.txt, edx-lint
-pylint-django==0.11.1     # via -r requirements/doc.txt, edx-lint
+pylint-django==2.0.11     # via -r requirements/doc.txt, edx-lint
 pylint-plugin-utils==0.6  # via -r requirements/doc.txt, pylint-celery, pylint-django
-pylint==1.9.5             # via -r requirements/doc.txt, edx-lint, pylint-celery, pylint-django, pylint-plugin-utils, pytest-pylint
+pylint==2.4.2             # via -r requirements/doc.txt, edx-lint, pylint-celery, pylint-django, pylint-plugin-utils, pytest-pylint
 pymongo==3.10.1           # via -r requirements/doc.txt
-pyopenssl==19.1.0         # via -r requirements/travis.txt, urllib3
 pyparsing==2.4.7          # via -r requirements/doc.txt, -r requirements/travis.txt, packaging
 pytest-cache==1.0         # via -r requirements/doc.txt, pytest-pep8
 pytest-cov==2.8.1         # via -r requirements/doc.txt
 pytest-forked==1.1.3      # via -r requirements/doc.txt, pytest-xdist
 pytest-pep8==1.0.6        # via -r requirements/doc.txt
-pytest-pylint==0.14.1     # via -r requirements/doc.txt
+pytest-pylint==0.15.1     # via -c requirements/constraints.txt, -r requirements/doc.txt
 pytest-xdist==1.31.0      # via -r requirements/doc.txt
-pytest==4.6.9             # via -r requirements/doc.txt, pytest-cache, pytest-cov, pytest-forked, pytest-pep8, pytest-pylint, pytest-xdist
-pytz==2019.3              # via -r requirements/doc.txt, babel
+pytest==5.3.0             # via -c requirements/constraints.txt, -r requirements/doc.txt, pytest-cache, pytest-cov, pytest-forked, pytest-pep8, pytest-pylint, pytest-xdist
+pytz==2020.1              # via -r requirements/doc.txt, babel
 readme-renderer==26.0     # via -r requirements/doc.txt
 requests==2.23.0          # via -r requirements/doc.txt, -r requirements/travis.txt, coveralls, sphinx
-scandir==1.10.0           # via -r requirements/doc.txt, -r requirements/travis.txt, pathlib2
-singledispatch==3.4.0.3   # via -r requirements/doc.txt, -r requirements/travis.txt, astroid, importlib-resources, pylint
-six==1.14.0               # via -r requirements/doc.txt, -r requirements/pip-tools.txt, -r requirements/travis.txt, astroid, bleach, cryptography, edx-lint, edx-sphinx-theme, mock, more-itertools, packaging, pathlib2, pip-tools, pylint, pyopenssl, pytest, pytest-pylint, pytest-xdist, readme-renderer, singledispatch, sphinx, stevedore, tox, virtualenv
+six==1.14.0               # via -r requirements/doc.txt, -r requirements/pip-tools.txt, -r requirements/travis.txt, astroid, bleach, edx-lint, edx-sphinx-theme, mock, packaging, pathlib2, pip-tools, pytest-xdist, readme-renderer, stevedore, tox, virtualenv
 snowballstemmer==2.0.0    # via -r requirements/doc.txt, sphinx
 sortedcontainers==2.1.0   # via -r requirements/doc.txt, hypothesis
-sphinx==1.8.5             # via -r requirements/doc.txt, edx-sphinx-theme
-sphinxcontrib-websupport==1.1.2  # via -r requirements/doc.txt, sphinx
+sphinx==3.0.3             # via -r requirements/doc.txt, edx-sphinx-theme
+sphinxcontrib-applehelp==1.0.2  # via -r requirements/doc.txt, sphinx
+sphinxcontrib-devhelp==1.0.2  # via -r requirements/doc.txt, sphinx
+sphinxcontrib-htmlhelp==1.0.3  # via -r requirements/doc.txt, sphinx
+sphinxcontrib-jsmath==1.0.1  # via -r requirements/doc.txt, sphinx
+sphinxcontrib-qthelp==1.0.3  # via -r requirements/doc.txt, sphinx
+sphinxcontrib-serializinghtml==1.1.4  # via -r requirements/doc.txt, sphinx
 stevedore==1.32.0         # via -r requirements/doc.txt
 toml==0.10.0              # via -r requirements/travis.txt, tox
 tox-battery==0.5.2        # via -r requirements/travis.txt
 tox==3.14.6               # via -r requirements/travis.txt, tox-battery
-typing==3.7.4.1           # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-resources, sphinx
-urllib3[secure]==1.25.9   # via -r requirements/doc.txt, -r requirements/travis.txt, coveralls, requests
+typed-ast==1.4.1          # via -r requirements/doc.txt, astroid
+urllib3==1.25.9           # via -r requirements/doc.txt, -r requirements/travis.txt, requests
 virtualenv==20.0.18       # via -r requirements/travis.txt, tox
 wcwidth==0.1.9            # via -r requirements/doc.txt, pytest
 webencodings==0.5.1       # via -r requirements/doc.txt, bleach
-wrapt==1.12.1             # via -r requirements/doc.txt, astroid
+wrapt==1.11.2             # via -r requirements/doc.txt, astroid
 zipp==1.2.0               # via -r requirements/doc.txt, -r requirements/travis.txt, importlib-metadata, importlib-resources
 
 # The following packages are considered to be unsafe in a requirements file:

requirements/django-test.txt

@@ -5,55 +5,48 @@
 #    make upgrade
 #
 apipkg==1.5               # via -r requirements/test.txt, execnet
-astroid==1.6.6            # via -r requirements/test.txt, pylint, pylint-celery
-atomicwrites==1.3.0       # via -r requirements/test.txt, pytest
+astroid==2.3.3            # via -r requirements/test.txt, pylint, pylint-celery
 attrs==19.3.0             # via -r requirements/test.txt, hypothesis, pytest
-backports.functools-lru-cache==1.6.1  # via -r requirements/test.txt, astroid, isort, pylint
 click-log==0.3.2          # via -r requirements/test.txt, edx-lint
-click==7.1.1              # via -r requirements/test.txt, click-log, edx-lint
-configparser==4.0.2       # via -r requirements/test.txt, importlib-metadata, pylint
-contextlib2==0.6.0.post1  # via -r requirements/test.txt, importlib-metadata, zipp
+click==7.1.2              # via -r requirements/test.txt, click-log, edx-lint
 coverage==5.1             # via -r requirements/test.txt, pytest-cov
 ddt==1.3.1                # via -r requirements/test.txt
 edx-lint==1.4.1           # via -r requirements/test.txt
-enum34==1.1.10            # via -r requirements/test.txt, astroid, hypothesis
 execnet==1.7.1            # via -r requirements/test.txt, pytest-cache, pytest-xdist
-funcsigs==1.0.2           # via -r requirements/test.txt, mock, pytest
-futures==3.3.0 ; python_version == "2.7"  # via -c requirements/constraints.txt, -r requirements/test.txt, isort
-hypothesis==4.57.1        # via -r requirements/test.txt
+hypothesis==5.10.4        # via -r requirements/test.txt
 importlib-metadata==1.6.0  # via -r requirements/test.txt, pluggy, pytest
 isort==4.3.21             # via -r requirements/test.txt, pylint
 lazy-object-proxy==1.4.3  # via -r requirements/test.txt, astroid
 mccabe==0.6.1             # via -r requirements/test.txt, pylint
 mock==3.0.5               # via -r requirements/test.txt
-more-itertools==5.0.0     # via -r requirements/test.txt, pytest
+more-itertools==8.2.0     # via -r requirements/test.txt, pytest
 packaging==20.3           # via -r requirements/test.txt, pytest
-pathlib2==2.3.5           # via -r requirements/test.txt, importlib-metadata, pytest, pytest-django
+pathlib2==2.3.5           # via -r requirements/test.txt, pytest
 pbr==5.4.5                # via -r requirements/test.txt, stevedore
 pep8==1.7.1               # via -r requirements/test.txt, pytest-pep8
 pluggy==0.13.1            # via -r requirements/test.txt, pytest
 py==1.8.1                 # via -r requirements/test.txt, pytest
 pycodestyle==2.5.0        # via -r requirements/test.txt
 pylint-celery==0.3        # via -r requirements/test.txt, edx-lint
-pylint-django==0.11.1     # via -r requirements/test.txt, edx-lint
+pylint-django==2.0.11     # via -r requirements/test.txt, edx-lint
 pylint-plugin-utils==0.6  # via -r requirements/test.txt, pylint-celery, pylint-django
-pylint==1.9.5             # via -r requirements/test.txt, edx-lint, pylint-celery, pylint-django, pylint-plugin-utils, pytest-pylint
+pylint==2.4.2             # via -r requirements/test.txt, edx-lint, pylint-celery, pylint-django, pylint-plugin-utils, pytest-pylint
 pymongo==3.10.1           # via -r requirements/test.txt
 pyparsing==2.4.7          # via -r requirements/test.txt, packaging
 pytest-cache==1.0         # via -r requirements/test.txt, pytest-pep8
 pytest-cov==2.8.1         # via -r requirements/test.txt
 pytest-django==3.9.0      # via -r requirements/django-test.in
 pytest-forked==1.1.3      # via -r requirements/test.txt, pytest-xdist
 pytest-pep8==1.0.6        # via -r requirements/test.txt
-pytest-pylint==0.14.1     # via -r requirements/test.txt
+pytest-pylint==0.15.1     # via -c requirements/constraints.txt, -r requirements/test.txt
 pytest-xdist==1.31.0      # via -r requirements/test.txt
-pytest==4.6.9             # via -r requirements/test.txt, pytest-cache, pytest-cov, pytest-django, pytest-forked, pytest-pep8, pytest-pylint, pytest-xdist
-pytz==2019.3              # via -r requirements/django.txt, django
-scandir==1.10.0           # via -r requirements/test.txt, pathlib2
-singledispatch==3.4.0.3   # via -r requirements/test.txt, astroid, pylint
-six==1.14.0               # via -r requirements/test.txt, astroid, edx-lint, mock, more-itertools, packaging, pathlib2, pylint, pytest, pytest-pylint, pytest-xdist, singledispatch, stevedore
+pytest==5.3.0             # via -c requirements/constraints.txt, -r requirements/test.txt, pytest-cache, pytest-cov, pytest-django, pytest-forked, pytest-pep8, pytest-pylint, pytest-xdist
+pytz==2020.1              # via -r requirements/django.txt, django
+six==1.14.0               # via -r requirements/test.txt, astroid, edx-lint, mock, packaging, pathlib2, pytest-xdist, stevedore
 sortedcontainers==2.1.0   # via -r requirements/test.txt, hypothesis
+sqlparse==0.3.1           # via -r requirements/django.txt, django
 stevedore==1.32.0         # via -r requirements/test.txt
+typed-ast==1.4.1          # via -r requirements/test.txt, astroid
 wcwidth==0.1.9            # via -r requirements/test.txt, pytest
-wrapt==1.12.1             # via -r requirements/test.txt, astroid
+wrapt==1.11.2             # via -r requirements/test.txt, astroid
 zipp==1.2.0               # via -r requirements/test.txt, importlib-metadata

requirements/django.in

@@ -5,4 +5,4 @@
 -c base.txt
 
 
-Django>=1.11
+Django>=2.2,<3.0

requirements/django.txt

@@ -4,5 +4,6 @@
 #
 #    make upgrade
 #
-django==1.11.29           # via -r requirements/django.in
-pytz==2019.3              # via django
+django==2.2.12            # via -r requirements/django.in
+pytz==2020.1              # via django
+sqlparse==0.3.1           # via django