Build: Remove support for Python 2.7 and Py3 < 3.8.

Author: scoder

.github/workflows/ci.yml

@@ -36,7 +36,7 @@ jobs:
       fail-fast: false
 
       matrix:
-        python-version: ["2.7", "3.5", "3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
+        python-version: ["3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
 
         include:
           - python-version: "3.14-dev"
@@ -49,21 +49,9 @@ jobs:
 
     - name: Set up Python
       uses: actions/setup-python@v5
-      if: startsWith(matrix.python-version, '3.')
       with:
         python-version: ${{ matrix.python-version }}
 
-    - name: Set up Python2 (Linux)
-      if: matrix.python-version == '2.7' && startsWith(matrix.os, 'ubuntu')
-      run: |
-          sudo ln -fs python2 /usr/bin/python
-          sudo apt-get update
-          sudo apt-get install python-setuptools python2-dev
-          curl https://bootstrap.pypa.io/pip/2.7/get-pip.py --output get-pip.py
-          sudo python2 get-pip.py
-          ls -l /usr/bin/pip* /usr/local/bin/pip*
-          which pip
-
     - name: Install Dependency
       run: |
         python -m pip install -U pip setuptools && python -m pip install -r requirements.txt
@@ -77,7 +65,7 @@ jobs:
       run: make testslow
 
     - name: Running benchmark
-      if: startsWith(matrix.python-version, '3.') && matrix.python-version != '3.5'
+      if: startsWith(matrix.python-version, '3.')
       run: |
         python benchmark/telco_fractions.py -n 250
         python benchmark/microbench.py create pydigits
@@ -154,10 +142,8 @@ jobs:
       fail-fast: false
 
       matrix:
-        #os: [macos-10.15, windows-latest]
-        #os: [macos-10.15, macOS-M1]
-        os: [macos-latest, windows-latest]
-        python-version: ["3.6", "3.7", "3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
+        os: [macos-13, windows-latest]
+        python-version: ["3.8", "3.9", "3.10", "3.11", "3.12", "3.13", "3.14-dev"]
 
         include:
           - python-version: "3.14-dev"

CHANGES.rst

@@ -4,6 +4,8 @@ ChangeLog
 1.19 (2024-??-??)
 -----------------
 
+* Support for Python 2.7 as well as 3.7 and earlier has been discontinued.
+
 * Generally use ``.as_integer_ratio()`` in the constructor if available.
   https://github.com/python/cpython/pull/120271
 

setup.py

@@ -47,32 +47,6 @@
         ext_modules = cythonize(
             ext_modules, compiler_directives=compiler_directives, force=force_rebuild)
 
-        # Fix compiler warning due to missing pragma-push in Cython 3.0.9.
-        for ext in ext_modules:
-            for source_file in ext.sources:
-                with open(source_file, 'rb') as f:
-                    lines = f.readlines()
-                if b'Generated by Cython 3.0.9' not in lines[0]:
-                    continue
-
-                modified = False
-                temp_file = source_file + ".tmp"
-                with open(temp_file, 'wb') as f:
-                    last_was_push = False
-                    for line in lines:
-                        if b'#pragma GCC diagnostic ignored "-Wincompatible-pointer-types"' in line and not last_was_push:
-                            f.write(b"#pragma GCC diagnostic push\n")
-                            modified = True
-                        last_was_push = b'#pragma GCC diagnostic push' in line
-                        f.write(line)
-
-                if modified:
-                    print("Fixed Cython 3.0.9 generated source file " + source_file)
-                    os.unlink(source_file)
-                    os.rename(temp_file, source_file)
-                else:
-                    os.unlink(temp_file)
-
 if cythonize is None:
     for ext_module in ext_modules:
         ext_module.sources[:] = [m.replace('.pyx', '.c') for m in ext_module.sources]
@@ -121,7 +95,6 @@
         "Intended Audience :: Developers",
         "Operating System :: OS Independent",
         "Programming Language :: Python",
-        "Programming Language :: Python :: 2",
         "Programming Language :: Python :: 3",
         "Programming Language :: Cython",
         "Topic :: Scientific/Engineering :: Mathematics",

tox.ini

@@ -1,5 +1,5 @@
 [tox]
-envlist = py{27,35,36,37,38,39,310,311,312}
+envlist = py{37,38,39,310,311,312,313}
 
 [testenv]
 platform =