setup: Drop support for python 3.7

The main reason to drop this version before it reaches its EOL is so
that we can begin to use unittest.IsolatedAsyncioTestCase to replace
deprecated portions of the tornado.testing module.

A secondary reason is that Python 3.8 introduced support for the
samesite cookie attribute, which allows us to deprecate the
xsrf_token mechanism.

diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index 935c325ec19212ddb8e018ea4ba96aa2f2a4c1f0..7ac51cee07474cd7de9eaaaf699cac32e7b46bf0 100644 (file)
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -36,8 +36,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - python: '3.7'
-            tox_env: py37-full
           - python: '3.8'
             tox_env: py38-full
           - python: '3.9'

diff --git a/docs/index.rst b/docs/index.rst
index f8d60b9ff97e65db0d1dfb01aa4f29c50097b43c..024bc393acff2b7f671bae9b4bae566b7c28beac 100644 (file)
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -100,7 +100,7 @@ installed in this way, so you may wish to download a copy of the
 source tarball or clone the `git repository
 <https://github.com/tornadoweb/tornado>`_ as well.
 
-**Prerequisites**: Tornado 6.2 requires Python 3.7 or newer. The following
+**Prerequisites**: Tornado 6.3 requires Python 3.8 or newer. The following
 optional packages may be useful:
 
 * `pycurl <http://pycurl.io/>`_ is used by the optional

diff --git a/pyproject.toml b/pyproject.toml
index 4c5d9b028931135bc96dfb11c082347da62f494f..1a395be170695a9cb4204b1f5c150e01cf799ffc 100644 (file)
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -3,7 +3,7 @@ requires = ["setuptools", "wheel"]
 build-backend = "setuptools.build_meta"
 
 [tool.cibuildwheel]
-build = "cp3[789]* cp310* cp311*"
+build = "cp3[89]* cp310* cp311*"
 test-command = "python -m tornado.test"
 
 [tool.cibuildwheel.macos]

diff --git a/setup.cfg b/setup.cfg
index e8bf80679ff6b87c308a5e10efdc071b00fb1702..53b16dff17a8378ab99c11cd28d315188f6fbeea 100644 (file)
--- a/setup.cfg
+++ b/setup.cfg
@@ -2,7 +2,7 @@
 license_file = LICENSE
 
 [mypy]
-python_version = 3.7
+python_version = 3.8
 no_implicit_optional = True
 
 [mypy-tornado.*,tornado.platform.*]

diff --git a/setup.py b/setup.py
index 6ebc0f6bb76dc05e85f01ff33ac2ae93a0889e84..4a67a715b7f8b984f539bc475ee92c0f6548715f 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -52,7 +52,7 @@ if (
             # Use the stable ABI so our wheels are compatible across python
             # versions.
             py_limited_api=True,
-            define_macros=[("Py_LIMITED_API", "0x03070000")],
+            define_macros=[("Py_LIMITED_API", "0x03080000")],
         )
     ]
 
@@ -63,7 +63,7 @@ if wheel is not None:
             python, abi, plat = super().get_tag()
 
             if python.startswith("cp"):
-                return "cp37", "abi3", plat
+                return "cp38", "abi3", plat
             return python, abi, plat
 
     kwargs["cmdclass"] = {"bdist_wheel": bdist_wheel_abi3}
@@ -72,7 +72,7 @@ if wheel is not None:
 setuptools.setup(
     name="tornado",
     version=version,
-    python_requires=">= 3.7",
+    python_requires=">= 3.8",
     packages=["tornado", "tornado.test", "tornado.platform"],
     package_data={
         # data files need to be listed both here (which determines what gets
@@ -112,7 +112,6 @@ setuptools.setup(
     classifiers=[
         "License :: OSI Approved :: Apache Software License",
         "Programming Language :: Python :: 3",
-        "Programming Language :: Python :: 3.7",
         "Programming Language :: Python :: 3.8",
         "Programming Language :: Python :: 3.9",
         "Programming Language :: Python :: 3.10",

diff --git a/tox.ini b/tox.ini
index 6ea03e462f0ab5488144b5551b85d92e33cff0d4..36a95a3f4e2649659df1d45854ed671ac8e34029 100644 (file)
--- a/tox.ini
+++ b/tox.ini
@@ -13,7 +13,7 @@
 [tox]
 envlist =
         # Basic configurations: Run the tests for each python version.
-        py37-full,py38-full,py39-full,py310-full,py311-full,pypy3-full
+        py38-full,py39-full,py310-full,py311-full,pypy3-full
 
         # Build and test the docs with sphinx.
         docs
@@ -27,7 +27,6 @@ whitelist_externals = /bin/sh
 [testenv]
 basepython =
            py3: python3
-           py37: python3.7
            py38: python3.8
            py39: python3.9
            py310: python3.10
@@ -51,7 +50,7 @@ deps =
 
 setenv =
        # Treat the extension as mandatory in testing (but not on pypy)
-       {py3,py37,py38,py39,py310,py311}: TORNADO_EXTENSION=1
+       {py3,py38,py39,py310,py311}: TORNADO_EXTENSION=1
        # CI workers are often overloaded and can cause our tests to exceed
        # the default timeout of 5s.
        ASYNC_TEST_TIMEOUT=25
@@ -63,7 +62,7 @@ setenv =
        # during sdist installation (and it doesn't seem to be
        # possible to set environment variables during that phase of
        # tox).
-       {py3,py37,py38,py39,py310,py311,pypy3}: PYTHONWARNINGS=error:::tornado
+       {py3,py38,py39,py310,py311,pypy3}: PYTHONWARNINGS=error:::tornado
 
 
 # All non-comment lines but the last must end in a backslash.