Drop Python 3.8, given its' end of life, and no longer supported on GitHub CI. Also some typing fixes.

Author: jonathanslenders

.github/workflows/test.yaml

@@ -10,12 +10,12 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        python-version: [3.7, 3.8, 3.9, "3.10", "3.11"]
+        python-version: [3.8, 3.9, "3.10", "3.11", "3.12", "3.13"]
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - name: Setup Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v1
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ matrix.python-version }}
       - name: Install Dependencies

ptpython/entry_points/run_ptpython.py

@@ -30,26 +30,25 @@
 import os
 import pathlib
 import sys
+from importlib import metadata
 from textwrap import dedent
-from typing import IO
+from typing import Protocol
 
 import appdirs
 from prompt_toolkit.formatted_text import HTML
 from prompt_toolkit.shortcuts import print_formatted_text
 
 from ptpython.repl import PythonRepl, embed, enable_deprecation_warnings, run_config
 
-try:
-    from importlib import metadata  # type: ignore
-except ImportError:
-    import importlib_metadata as metadata  # type: ignore
+__all__ = ["create_parser", "get_config_and_history_file", "run"]
 
 
-__all__ = ["create_parser", "get_config_and_history_file", "run"]
+class _SupportsWrite(Protocol):
+    def write(self, s: str, /) -> object: ...
 
 
 class _Parser(argparse.ArgumentParser):
-    def print_help(self, file: IO[str] | None = None) -> None:
+    def print_help(self, file: _SupportsWrite | None = None) -> None:
         super().print_help()
         print(
             dedent(

setup.py

@@ -27,22 +27,21 @@
     package_data={"ptpython": ["py.typed"]},
     install_requires=[
         "appdirs",
-        "importlib_metadata;python_version<'3.8'",
         "jedi>=0.16.0",
         # Use prompt_toolkit 3.0.43, because of `OneStyleAndTextTuple` import.
         "prompt_toolkit>=3.0.43,<3.1.0",
         "pygments",
     ],
-    python_requires=">=3.7",
+    python_requires=">=3.8",
     classifiers=[
         "License :: OSI Approved :: BSD 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",
         "Programming Language :: Python :: 3.11",
         "Programming Language :: Python :: 3.12",
+        "Programming Language :: Python :: 3.13",
         "Programming Language :: Python :: 3 :: Only",
         "Programming Language :: Python",
     ],