ARROW-171 Drop support for Python 3.7 (#159)

Author: blink1073

.github/workflows/release-python.yml

@@ -32,7 +32,7 @@ jobs:
         - [ubuntu-20.04, manylinux_aarch64]
         - [macos-11, macosx_*]
         - [windows-2019, win_amd64]
-        python: ["cp37", "cp38", "cp39", "cp310", "cp311"]
+        python: ["cp38", "cp39", "cp310", "cp311"]
 
     steps:
       - name: Checkout pymongoarrow
@@ -93,7 +93,7 @@ jobs:
       - uses: actions/setup-python@v4
         with:
           # Build sdist on lowest supported Python
-          python-version: '3.7'
+          python-version: '3.8'
 
       - name: Build SDist
         working-directory: ./bindings/python

.github/workflows/test-python.yml

@@ -33,7 +33,7 @@ jobs:
     strategy:
       matrix:
         os: ["ubuntu-20.04", "macos-latest", "windows-latest"]
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.8, 3.9, "3.10", "3.11"]
       fail-fast: false
     name: CPython ${{ matrix.python-version }}-${{ matrix.os }}
     steps:

bindings/python/docs/source/installation.rst

@@ -11,7 +11,7 @@ PyMongoArrow is regularly built and tested on macOS and Linux
 Python Compatibility
 --------------------
 
-PyMongoArrow is currently compatible with CPython 3.7, 3.8 and 3.9.
+PyMongoArrow is currently compatible with CPython 3.8, 3.9, 3.10 and 3.11.
 
 Using Pip
 ---------

bindings/python/setup.cfg

@@ -20,7 +20,6 @@ classifiers =
     Operating System :: POSIX
     Programming Language :: Python :: 3
     Programming Language :: Python :: 3 :: Only
-    Programming Language :: Python :: 3.7
     Programming Language :: Python :: 3.8
     Programming Language :: Python :: 3.9
     Programming Language :: Python :: 3.10
@@ -32,7 +31,7 @@ classifiers =
 zip_safe = False
 include_package_data = True
 packages = find:
-python_requires = >=3.7
+python_requires = >=3.8
 install_requires =
     # keep versions in sync with pyproject.toml "requires"
     pyarrow >=11.0,<11.1