drop 3.7

This closes #37.

.github/workflows/build_wheels.yml

@@ -35,7 +35,7 @@ jobs:
       - name: Install python
         uses: actions/setup-python@v2
         with:
-          python-version: 3.7
+          python-version: 3.11
       - name: Get build dependencies
         working-directory: ./dev
         run: python -m pip install -r dev-requirements.txt
@@ -73,7 +73,7 @@ jobs:
       matrix:
         buildplat:
           - [macos-latest, macosx_*]
-        python: ["cp37", "cp38", "cp39", "cp310", "cp311"]
+        python: ["cp38", "cp39", "cp310", "cp311"]
     steps:
       - name: Checkout code
         uses: actions/checkout@v2

.github/workflows/java_tests.yml

@@ -32,7 +32,7 @@ jobs:
     strategy:
       matrix:
         os: ['macos-latest', 'ubuntu-20.04']
-        python-version: ['3.7', '3.8', '3.9', '3.10', '3.11']
+        python-version: ['3.8', '3.9', '3.10', '3.11']
     steps:
       - name: Checkout code
         uses: actions/checkout@v2

README.md

@@ -35,7 +35,7 @@ Prerequisites for building PemJa:
 * Git
 * Maven (we recommend version 3.2.5 and require at least 3.1.1)
 * Java 8 or 11 (Java 9 or 10 may work)
-* Python >= 3.7 (we recommend version 3.7, 3.8, 3.9)
+* Python >= 3.8 (we recommend version 3.8, 3.9, 3.10, 3.11)
 
 ```
 git clone https://github.com/alibaba/pemja.git

dev/build-wheels.sh

@@ -19,7 +19,7 @@ set -e -x
 dev/lint-python.sh -s py_env
 
 PY_ENV_DIR=`pwd`/dev/.conda/envs
-py_env=("3.7" "3.8" "3.9" "3.10" "3.11")
+py_env=("3.8" "3.9" "3.10" "3.11")
 ## 2. install dependency
 for ((i=0;i<${#py_env[@]};i++)) do
     if [[ "$(uname)" != "Darwin" ]]; then

dev/lint-python.sh

@@ -217,7 +217,7 @@ function install_miniconda() {
 
 # Install some kinds of py env.
 function install_py_env() {
-    py_env=("3.7" "3.8" "3.9" "3.10" "3.11")
+    py_env=("3.8" "3.9" "3.10" "3.11")
     for ((i=0;i<${#py_env[@]};i++)) do
         if [[ -d "$CURRENT_DIR/.conda/envs/${py_env[i]}" ]]; then
             rm -rf "$CURRENT_DIR/.conda/envs/${py_env[i]}"
@@ -391,7 +391,7 @@ function install_environment() {
     print_function "STEP" "install miniconda... [SUCCESS]"
 
     # step-3 install python environment which includes
-    # 3.7 3.8 3.9 3.10 3.11
+    # 3.8 3.9 3.10 3.11
     if [[ ${STEP} -lt 3 ]] && [[ `need_install_component "py_env"` = true ]]; then
         print_function "STEP" "installing python environment..."
         install_py_env
@@ -585,7 +585,7 @@ usage: $0 [options]
                 so do not use this option with -e,-i simultaneously.
 Examples:
   ./lint-python -s basic        =>  install environment with basic components.
-  ./lint-python -s py_env       =>  install environment with python env(3.7,3.8,3.9,3.10,3.11).
+  ./lint-python -s py_env       =>  install environment with python env(3.8,3.9,3.10,3.11).
   ./lint-python -s all          =>  install environment with all components such as python env,tox,flake8,sphinx,mypy etc.
   ./lint-python -s tox,flake8   =>  install environment with tox,flake8.
   ./lint-python -s tox -f       =>  reinstall environment with tox.

pyproject.toml

@@ -4,7 +4,6 @@ requires = [
     "packaging==20.5; platform_machine=='arm64'",  # macos M1
     "setuptools==59.2.0",
     "wheel==0.37.0",
-    "numpy==1.21.4"
 ]
 
 [tool.cibuildwheel.macos]

setup.py

@@ -24,7 +24,7 @@
 
 from setuptools import setup, Extension
 
-if sys.version_info < (3, 7):
+if sys.version_info < (3, 8):
     print('Python versions prior to 3.7 are not supported for PemJa.',
           file=sys.stderr)
     sys.exit(-1)
@@ -194,7 +194,7 @@ def build_extension(self, ext):
     author='Apache Software Foundation',
     license='https://www.apache.org/licenses/LICENSE-2.0',
     author_email='hxbks2ks@gmail.com',
-    python_requires='>=3.7',
+    python_requires='>=3.8',
     install_requires=['find-libpython'],
     cmdclass={'build_ext': build_ext},
     description='PemJa',
@@ -204,7 +204,6 @@ def build_extension(self, ext):
     classifiers=[
         'Development Status :: 5 - Production/Stable',
         'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python :: 3.7',
         'Programming Language :: Python :: 3.8',
         'Programming Language :: Python :: 3.9',
         'Programming Language :: Python :: 3.10',