Add mypy (#51)

* Add mypy

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

---------

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

.github/workflows/mypy.yml

@@ -0,0 +1,22 @@
+name: MyPy
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+
+jobs:
+  mypy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Setup Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: "3.13"
+          architecture: x64
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Install mypy
+        run: pip install mypy
+      - name: Test
+        run: mypy --ignore-missing-imports ${{ github.event.repository.name }}

conda_subprocess/__init__.py

@@ -5,9 +5,9 @@
 
 __version__ = _version.get_versions()["version"]
 __all__ = [
-    Popen,
-    call,
-    check_call,
-    check_output,
-    run,
+    "Popen",
+    "call",
+    "check_call",
+    "check_output",
+    "run",
 ]

conda_subprocess/process.py

@@ -6,6 +6,7 @@
 from conda.base.context import (
     PREFIX_NAME_DISALLOWED_CHARS,
     ROOT_ENV_NAME,
+    Context,
     _first_writable_envs_dir,
     context,
 )
@@ -127,7 +128,7 @@ def _locate_prefix_by_name(name, envs_dirs=None):
     raise EnvironmentNameNotFound(name)
 
 
-def _validate_prefix_name(prefix_name: str, ctx: context, allow_base=True) -> str:
+def _validate_prefix_name(prefix_name: str, ctx: Context, allow_base=True) -> str:
     """Run various validations to make sure prefix_name is valid"""
     if PREFIX_NAME_DISALLOWED_CHARS.intersection(prefix_name):
         raise CondaValueError(