Delete Python2-only tests

Author: Zac-HD

.flake8

@@ -5,7 +5,6 @@ exclude =
     hypothesis-python/src/hypothesis/vendor/*,
     test_reflection.py,
     test_imports.py,
-    hypothesis-python/tests/py2/*,
     test_lambda_formatting.py
 ignore =
     # `black` creates these ones

azure-pipelines.yml

@@ -18,16 +18,12 @@ jobs:
           TASK: check-coverage
         check-conjecture-coverage:
           TASK: check-conjecture-coverage
-        check-pypy:
-          TASK: check-pypy
         check-pypy35:
           TASK: check-pypy35
         check-pypy36:
           TASK: check-pypy36
         check-py36:
           TASK: check-py36
-        check-py27:
-          TASK: check-py27
         check-py35:
           TASK: check-py35
         check-py37:
@@ -73,39 +69,11 @@ jobs:
         pytest
       displayName: Run tests
 
-  - job: windows_py2
-    pool:
-      vmImage: 'windows-2019'
-    strategy:
-      matrix:
-        check-py27-x64:
-          python.version: '2.7'
-          python.architecture: 'x64'
-        check-py27-x86:
-          python.version: '2.7'
-          python.architecture: 'x86'
-    steps:
-    - task: UsePythonVersion@0
-      inputs:
-        versionSpec: '$(python.version)'
-        architecture: '$(python.architecture)'
-    - script: |
-        pip install --upgrade setuptools pip wheel
-        pip install setuptools -r requirements/py2.txt
-        pip install hypothesis-python/[all]
-      displayName: Install dependencies
-    - script: |
-        cd hypothesis-python
-        pytest tests\cover  tests/datetime tests\numpy  tests\pandas tests\py3  tests\pytest
-      displayName: Run tests
-
   - job: osx
     pool:
       vmImage: 'macOS-10.13'
     strategy:
       matrix:
-        check-py27:
-          TASK: check-py27
         check-py36:
           TASK: check-py36
     steps:
@@ -127,10 +95,6 @@ jobs:
       vmImage: 'Ubuntu 16.04'
     strategy:
       matrix:
-        check-unicode:
-          TASK: check-unicode
-        check-py27-typing:
-          TASK: check-py27-typing
         check-nose:
           TASK: check-nose
         check-pytest43:

hypothesis-python/scripts/basic-test.sh

@@ -16,11 +16,7 @@ pip install .
 PYTEST="python -m pytest -n2"
 
 # Run all the no-extra-dependency tests for this version (except slow nocover tests)
-if [ "$(python -c 'import sys; print(sys.version_info[0] == 2)')" = "True" ] ; then
-  $PYTEST tests/cover tests/pytest tests/py2
-else
-  $PYTEST tests/cover tests/pytest tests/py3
-fi
+$PYTEST tests/cover tests/pytest tests/py3
 
 # Run tests for each extra module while the requirements are installed
 pip install ".[pytz, dateutil]"
@@ -37,7 +33,7 @@ pip install lark-parser==0.7.1
 $PYTEST tests/lark/
 pip uninstall -y lark-parser
 
-if [ "$(python -c 'import sys; print(sys.version_info[:2] in ((2, 7), (3, 6)))')" = "False" ] ; then
+if [ "$(python -c 'import sys; print(sys.version_info[:2] == (3, 6))')" = "False" ] ; then
   exit 0
 fi
 

hypothesis-python/scripts/unicodechecker.py

@@ -102,10 +102,6 @@ Still here?  Here's a note on what to expect in each directory.
 ``pandas/``
     Tests for the Pandas extra.
 
-``py2/``
-    Tests that require Python 2.  This is a small group, because almost all
-    of our code and tests are also compatible with Python 3.
-
 ``py3/``
     Tests that require Python 3.  Includes checking that unicode identifiers
     and function annotations don't break anything, asyncio tests, and tests

hypothesis-python/tests/README.rst

@@ -31,8 +31,8 @@
 run()
 
 # Skip collection of tests which require the Django test runner,
-# or that don't work on the current major version of Python.
-collect_ignore_glob = ["django/*", "py3/*" if sys.version_info[0] == 2 else "py2/*"]
+# or that don't work on the current version of Python.
+collect_ignore_glob = ["django/*"]
 if sys.version_info < (3, 8):
     collect_ignore_glob.append("py3/*py38*")
 

hypothesis-python/tests/conftest.py

@@ -20,54 +20,12 @@ commands =
     prettyquick: python -m pytest tests/cover/
     custom: python -m pytest {posargs}
 
-[testenv:py27-full]
-deps =
-    -r../requirements/py2.txt
-whitelist_externals=
-    bash
-commands =
-    bash scripts/basic-test.sh
-
-[testenv:pypy-full]
-deps =
-    -r../requirements/py2.txt
-whitelist_externals=
-    bash
-commands =
-    bash scripts/basic-test.sh
-
 [testenv:quality]
 deps=
     -r../requirements/test.txt
 commands=
     python -m pytest tests/quality/ -n2
 
-
-[testenv:quality2]
-basepython=python2.7
-deps=
-    -r../requirements/py2.txt
-commands=
-    python -m pytest tests/quality/
-
-[testenv:py27typing]
-basepython=python2.7
-deps=
-    -r../requirements/py2.txt
-    -r../requirements/typing.txt
-commands=
-    python -m pytest tests/cover/ -n2
-
-[testenv:unicode]
-basepython=python2.7
-deps =
-  unicode-nazi
-setenv=
-    UNICODENAZI=true
-    PYTHONPATH=.
-commands=
-    python scripts/unicodechecker.py
-
 [testenv:pandas19]
 deps =
     -r../requirements/test.txt
@@ -180,26 +138,9 @@ commands =
     python -m coverage run --rcfile=.coveragerc --source=hypothesis.internal.conjecture -m pytest -n0 --strict tests/conjecture
     python -m coverage report -m --fail-under=100 --show-missing --skip-covered
 
-[testenv:pypy-with-tracer]
-setenv=
-    HYPOTHESIS_PROFILE=with_coverage
-basepython=pypy
-deps =
-    -r../requirements/py2.txt
-commands =
-    python -m pytest tests/cover/test_testdecorators.py tests/nocover/test_coverage.py -n 0 {posargs}
-
 
 [testenv:examples3]
 deps=
     -r../requirements/test.txt
 commands=
     python -m pytest examples
-
-
-[testenv:examples2]
-basepython=python2.7
-deps=
-    -r../requirements/py2.txt
-commands=
-    python -m pytest examples

hypothesis-python/tests/py2/__init__.py

@@ -2,10 +2,6 @@
 :: variables to use the MSVC 2010 C++ compilers from GRMSDKX_EN_DVD.iso of:
 :: MS Windows SDK for Windows 7 and .NET Framework 4 (SDK v7.1)
 ::
-:: To build extensions for 64 bit Python 2, we need to configure environment
-:: variables to use the MSVC 2008 C++ compilers from GRMSDKX_EN_DVD.iso of:
-:: MS Windows SDK for Windows 7 and .NET Framework 3.5 (SDK v7.0)
-::
 :: 32 bit builds do not require specific environment configurations.
 ::
 :: Note: this script needs to be run with the /E:ON and /V:ON flags for the
@@ -22,22 +18,12 @@
 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" (
-    SET WINDOWS_SDK_VERSION="v7.1"
-) ELSE (
-    ECHO Unsupported Python version: "%MAJOR_PYTHON_VERSION%"
-    EXIT 1
-)
-
 IF "%PYTHON_ARCH%"=="64" (
-    ECHO Configuring Windows SDK %WINDOWS_SDK_VERSION% for Python %MAJOR_PYTHON_VERSION% on a 64 bit architecture
+    ECHO Configuring Windows SDK v7.1 for Python 3 on a 64 bit architecture
     SET DISTUTILS_USE_SDK=1
     SET MSSdk=1
-    "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Setup\WindowsSdkVer.exe" -q -version:%WINDOWS_SDK_VERSION%
-    "%WIN_SDK_ROOT%\%WINDOWS_SDK_VERSION%\Bin\SetEnv.cmd" /x64 /release
+    "%WIN_SDK_ROOT%\v7.1\Setup\WindowsSdkVer.exe" -q -version:v7.1
+    "%WIN_SDK_ROOT%\v7.1\Bin\SetEnv.cmd" /x64 /release
     ECHO Executing: %COMMAND_TO_RUN%
     call %COMMAND_TO_RUN% || EXIT 1
 ) ELSE (

hypothesis-python/tests/py2/test_destructuring.py

@@ -368,25 +368,23 @@ def run_tox(task, version):
 
 
 # Via https://github.com/pyenv/pyenv/tree/master/plugins/python-build/share/python-build
-PY27 = "2.7.16"
 PY35 = "3.5.7"
 PY36 = "3.6.9"
 PY37 = "3.7.4"
 PY38 = "3.8.0"
-PYPY2 = "pypy2.7-5.10.0"
 PYPY35 = "pypy3.5-7.0.0"
 PYPY36 = "pypy3.6-7.1.1"
 
 
 @task()
 def install_core():
-    install.python_executable(PY27)
     install.python_executable(PY36)
 
 
-ALIASES = {PYPY2: "pypy", PYPY35: "pypy3", PYPY36: "pypy3"}
+# ALIASES are the executable names for each Python version
+ALIASES = {PYPY35: "pypy3", PYPY36: "pypy3"}
 
-for n in [PY27, PY35, PY36, PY37, PY38]:
+for n in [PY35, PY36, PY37, PY38]:
     major, minor, patch = n.split(".")
     ALIASES[n] = "python%s.%s" % (major, minor)
 
@@ -400,11 +398,6 @@ def install_core():
 )
 
 
-@python_tests
-def check_py27():
-    run_tox("py27-full", PY27)
-
-
 @python_tests
 def check_py35():
     run_tox("py35-full", PY35)
@@ -425,11 +418,6 @@ def check_py38():
     run_tox("py38-full", PY38)
 
 
-@python_tests
-def check_pypy():
-    run_tox("pypy-full", PYPY2)
-
-
 @python_tests
 def check_pypy35():
     run_tox("pypy3-full", PYPY35)
@@ -440,16 +428,6 @@ def check_pypy36():
     run_tox("pypy3-full", PYPY36)
 
 
-@python_tests
-def check_py27_typing():
-    run_tox("py27typing", PY27)
-
-
-@python_tests
-def check_pypy_with_tracer():
-    run_tox("pypy-with-tracer", PYPY2)
-
-
 def standard_tox_task(name):
     TASKS["check-" + name] = python_tests(lambda: run_tox(name, PY36))
 
@@ -476,21 +454,11 @@ def check_quality():
 )
 
 
-@examples_task
-def check_examples2():
-    run_tox("examples2", PY27)
-
-
 @examples_task
 def check_examples3():
     run_tox("examples3", PY36)
 
 
-@python_tests
-def check_unicode():
-    run_tox("unicode", PY27)
-
-
 @task()
 def check_whole_repo_tests():
     install.ensure_shellcheck()