Fix errors on Python 3.8 due to types

Author: elopez

.github/workflows/ci.yml

@@ -30,6 +30,7 @@ jobs:
     - uses: astral-sh/setup-uv@v6
       with:
         python-version: ${{ matrix.python }}
+        python-preference: "only-managed"
     - name: Install solc-select and test dependencies
       run: |
         uv sync --extra dev

solc_select/__main__.py

@@ -1,5 +1,6 @@
 import argparse
 import sys
+from typing import List
 
 from .constants import (
     INSTALL_COMMAND,
@@ -22,7 +23,7 @@
 from .utils import sort_versions
 
 
-def solc_select_install(service: SolcService, versions: list[str]) -> None:
+def solc_select_install(service: SolcService, versions: List[str]) -> None:
     """Handle the install command."""
     if not versions:
         print("Available versions to install:")

solc_select/infrastructure/http_client.py

@@ -5,7 +5,7 @@
 retry logic and proper timeout handling.
 """
 
-from typing import Any, Mapping, Optional, Union
+from typing import Any, Mapping, Optional, Tuple, Union
 
 import requests
 from requests.adapters import HTTPAdapter
@@ -22,9 +22,9 @@ def send(
         self,
         request: PreparedRequest,
         stream: bool = False,
-        timeout: Union[float, tuple[float, float], tuple[float, None], None] = None,
+        timeout: Union[float, Tuple[float, float], Tuple[float, None], None] = None,
         verify: Union[bool, str] = True,
-        cert: Union[bytes, str, tuple[Union[bytes, str], Union[bytes, str]], None] = None,
+        cert: Union[bytes, str, Tuple[Union[bytes, str], Union[bytes, str]], None] = None,
         proxies: Optional[Mapping[str, str]] = None,
     ) -> Response:
         timeout = timeout or self.timeout

tests/utils.py

@@ -5,13 +5,15 @@
 but are used across multiple test files.
 """
 
+from __future__ import annotations
+
 import os
 import subprocess
-from typing import Any, Dict
+from typing import Any
 
 
 def run_in_venv(
-    venv_info: Dict[str, Any], cmd: str, check: bool = True, **kwargs: Any
+    venv_info: dict[str, Any], cmd: str, check: bool = True, **kwargs: Any
 ) -> subprocess.CompletedProcess[str]:
     """
     Run a command in an isolated virtual environment.