Remove Python 3.7 support and add a new action for mamba.

.github/workflows/main.yml

@@ -27,20 +27,22 @@ jobs:
       fail-fast: false
       matrix:
         os: ['ubuntu-latest', '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']
 
     steps:
       - uses: actions/checkout@v3
-      - uses: conda-incubator/setup-[email protected]
+      - uses: mamba-org/setup-micromamba@v1
         with:
-          auto-update-conda: false
-          python-version: ${{ matrix.python-version }}
-          channels: conda-forge,nodefaults
-          miniforge-variant: Mambaforge
-
-      - name: Install core dependencies.
-        shell: bash -l {0}
-        run: mamba install -c conda-forge tox-conda coverage
+          environment-name: gha-testing
+          condarc: |
+            channels:
+              - nodefaults
+              - conda-forge
+          create-args: >-
+            python=${{ matrix.python-version }}
+            mamba
+            tox-conda
+          cache-environment: true
 
       # Unit, integration, and end-to-end tests.
 
@@ -49,7 +51,7 @@ jobs:
         run: tox -e pytest -- -m "unit or (not integration and not end_to_end)" --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage report for unit tests and doctests.
-        if: runner.os == 'Linux' && matrix.python-version == '3.8'
+        if: runner.os == 'Linux' && matrix.python-version == '3.10'
         shell: bash -l {0}
         run: bash <(curl -s https://codecov.io/bash) -F unit -c
 
@@ -58,7 +60,7 @@ jobs:
         run: tox -e pytest -- -m integration --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage reports of integration tests.
-        if: runner.os == 'Linux' && matrix.python-version == '3.8'
+        if: runner.os == 'Linux' && matrix.python-version == '3.10'
         shell: bash -l {0}
         run: bash <(curl -s https://codecov.io/bash) -F integration -c
 
@@ -67,6 +69,6 @@ jobs:
         run: tox -e pytest -- -m end_to_end --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage reports of end-to-end tests.
-        if: runner.os == 'Linux' && matrix.python-version == '3.8'
+        if: runner.os == 'Linux' && matrix.python-version == '3.10'
         shell: bash -l {0}
         run: bash <(curl -s https://codecov.io/bash) -F end_to_end -c

.pre-commit-config.yaml

@@ -30,7 +30,7 @@ repos:
     rev: v3.9.0
     hooks:
     -   id: reorder-python-imports
-        args: [--py37-plus, --add-import, 'from __future__ import annotations']
+        args: [--py38-plus, --add-import, 'from __future__ import annotations']
 -   repo: https://github.com/asottile/setup-cfg-fmt
     rev: v2.3.0
     hooks:

docs/rtd_environment.yml

@@ -3,7 +3,7 @@ channels:
   - nodefaults
 
 dependencies:
-  - python >=3.7
+  - python >=3.8
   - pip
   - setuptools_scm
   - toml

docs/source/changes.md

@@ -5,7 +5,11 @@ chronological order. Releases follow [semantic versioning](https://semver.org/)
 releases are available on [PyPI](https://pypi.org/project/pytask) and
 [Anaconda.org](https://anaconda.org/conda-forge/pytask).
 
-## 0.3.2 - 2023-xx-xx
+## 0.4.0 - 2023-xx-xx
+
+- {pull}`323` remove Python 3.7 support and use a new Github action to provide mamba.
+
+## 0.3.2 - 2023-06-07
 
 - {pull}`345` updates the version numbers in animations.
 - {pull}`352` publishes `db` that is required by pytask-environment.

environment.yml

@@ -5,7 +5,7 @@ channels:
   - nodefaults
 
 dependencies:
-  - python >=3.7
+  - python >=3.8
   - pip
   - setuptools_scm
   - toml

pyproject.toml

@@ -29,7 +29,7 @@ ignore-words-list = "falsy, hist, ines, unparseable"
 
 
 [tool.ruff]
-target-version = "py37"
+target-version = "py38"
 select = ["ALL"]
 fix = true
 extend-ignore = [

setup.cfg

@@ -40,7 +40,7 @@ install_requires =
     pybaum>=0.1.1
     rich
     tomli>=1.0.0
-python_requires = >=3.7
+python_requires = >=3.8
 include_package_data = True
 package_dir =
     =src

src/_pytask/capture.py

@@ -34,6 +34,7 @@
 from tempfile import TemporaryFile
 from typing import Any
 from typing import AnyStr
+from typing import final
 from typing import Generator
 from typing import Generic
 from typing import Iterator
@@ -46,14 +47,6 @@
 from _pytask.nodes import Task
 
 
-if sys.version_info >= (3, 8):
-    from typing import final
-else:
-
-    def final(f: Any) -> Any:
-        return f
-
-
 class _CaptureMethod(enum.Enum):
     FD = "fd"
     NO = "no"

src/_pytask/nodes.py

@@ -98,7 +98,7 @@ def state(self) -> str | None:
         return None
 
     @classmethod
-    @functools.lru_cache()
+    @functools.lru_cache
     def from_path(cls, path: Path) -> FilePathNode:
         """Instantiate class from path to file.
 

src/_pytask/path.py

@@ -100,7 +100,7 @@ def find_common_ancestor(*paths: str | Path) -> Path:
     return common_ancestor
 
 
-@functools.lru_cache()
+@functools.lru_cache
 def find_case_sensitive_path(path: Path, platform: str) -> Path:
     """Find the case-sensitive path.
 

tests/test_debugging.py

@@ -133,7 +133,6 @@ def task_example(depends_on):
 @pytest.mark.end_to_end()
 @pytest.mark.skipif(not IS_PEXPECT_INSTALLED, reason="pexpect is not installed.")
 @pytest.mark.skipif(sys.platform == "win32", reason="pexpect cannot spawn on Windows.")
-@pytest.mark.skipif(sys.version_info < (3, 7), reason="breakpoint is Python 3.7+ only.")
 def test_breakpoint(tmp_path):
     source = """
     def task_example():