Drop support for python 3.7

.github/workflows/tox_run.yml

@@ -18,7 +18,7 @@ jobs:
 
     strategy:
       matrix:
-        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
 
     steps:
@@ -111,10 +111,10 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - uses: actions/checkout@v3
-    - name: Set up Python 3.7
+    - name: Set up Python 3.8
       uses: actions/setup-python@v4
       with:
-        python-version: 3.7
+        python-version: 3.8
     - name: Install dependencies
       run: |
         python -m pip install --upgrade pip

README.md

@@ -7,7 +7,7 @@
     <img src="https://img.shields.io/pypi/v/hydra-zen.svg" alt="PyPI" />
   </a>
   <a>
-    <img src="https://img.shields.io/badge/python-3.7%20&#8208;%203.11-blue.svg" alt="Python version support" />
+    <img src="https://img.shields.io/badge/python-3.8%20&#8208;%203.11-blue.svg" alt="Python version support" />
   </a>
   <a href="https://github.com/mit-ll-responsible-ai/hydra-zen/actions?query=workflow%3ATests+branch%3Amain">
     <img src="https://github.com/mit-ll-responsible-ai/hydra-zen/workflows/Tests/badge.svg" alt="GitHub Actions" />

docs/source/changes.rst

@@ -16,9 +16,10 @@ chronological order. All previous releases should still be available on pip.
 
 .. note:: This is documentation for an unreleased version of hydra-zen. You can try out this pre-release version using `pip install --pre hydra-zen`
 
-This release drops support for hydra-core 1.1 and for omegaconf 2.1; this enabled the 
-removal of a lot of complex compatibility logic from hydra-zen's source code, and to 
-improve the behavior of :func:`~hydra_zen.zen`.
+This release drops support for Python 3.7 (which reached its end of life), hydra-core 
+1.1 and for omegaconf 2.1; this enabled the removal of a lot of complex compatibility 
+logic from hydra-zen's source code, and to improve the behavior of 
+:func:`~hydra_zen.zen`.
 
 
 Release Highlights
@@ -64,6 +65,7 @@ Compatibility-Breaking Changes
 ------------------------------
 Most of these changes will not have any impact on users, based on download statistics and the particular code patterns impacted by the following changes.
 
+- Python 3.8 is now the earliest supported version of Python supported by hydra-zen
 - hydra-core 1.2.0 and omegaconf 2.2.1 are now the minimum supported versions of hydra-zen's dependencies.
 - The auto-instantiation behavior of :class:`~hydra_zen.wrapper.Zen` and :func:`~hydra_zen.zen` have been updated so that nested dataclasses (nested within lists, dicts, and other dataclasses) will no longer be returned as omegaconf configs (see :pull:`448`).
 - :func:`~hydra_zen.just` not longer returns a frozen dataclass (see :pull:`459`).

pyproject.toml

@@ -12,7 +12,7 @@ name = "hydra_zen"
 dynamic = ["version"]
 description = "Configurable, reproducible, and scalable workflows in Python, via Hydra"
 readme = "README.md"
-requires-python = ">=3.7"
+requires-python = ">=3.8"
 dependencies = ["hydra-core >= 1.2.0", 
        "omegaconf >= 2.2.1", 
        "typing-extensions >= 4.1.0, !=4.6.0",
@@ -127,11 +127,10 @@ skip = 'docs/build/*'
 legacy_tox_ini = """
 [tox]
 isolated_build = True
-envlist = py37, py38, py39, py310, py311
+envlist = py38, py39, py310, py311
 
 [gh-actions]
 python =
-  3.7: py37
   3.8: py38
   3.9: py39
   3.10: py310
@@ -157,7 +156,7 @@ deps = hydra-core==1.2.0
        omegaconf==2.2.1
        typing-extensions==4.1.0
        {[testenv]deps}
-basepython = python3.7
+basepython = python3.8
 
 
 [testenv:pre-release]

src/hydra_zen/_utils/coerce.py

@@ -1,14 +1,6 @@
 # Copyright (c) 2023 Massachusetts Institute of Technology
 # SPDX-License-Identifier: MIT
 
-import sys
-
-if sys.version_info < (3, 7):  # pragma: no cover
-    raise NotImplementedError(
-        "Features that utilize `hydra_zen._utils.coerce` "
-        "(e.g. beartype-validation) require Python 3.7 or greater."
-    )
-
 import inspect
 from collections import deque
 from functools import wraps

src/hydra_zen/structured_configs/_implementations.py

@@ -1920,7 +1920,7 @@ def builds(target, populate_full_signature=False, **kw):
             ):  # pragma: no cover
                 # Exclude self/cls
                 #
-                # There are weird edge cases, like in collections.Counter for Python 3.7
+                # There are weird edge cases
                 # where the first arg is *args, not self.
                 _params = _params[1:]
             else:  # pragma: no cover

src/hydra_zen/structured_configs/_utils.py

@@ -23,6 +23,8 @@
     TypeVar,
     Union,
     cast,
+    get_args,
+    get_origin,
     overload,
 )
 
@@ -56,67 +58,6 @@
     convert_types,
 )
 
-try:
-    from typing import get_args, get_origin
-except ImportError:  # pragma: no cover
-    # remove at Python 3.7 end-of-life
-    from collections.abc import Callable as _Callable
-
-    def get_origin(tp: Any) -> Union[None, type]:
-        """Get the unsubscripted version of a type.
-
-        Parameters
-        ----------
-        tp : Any
-
-        Returns
-        -------
-        Union[None, type]
-            Return None for unsupported types.
-
-        Notes
-        -----
-        Bare `Generic` not supported by this hacked version of `get_origin`
-
-        Examples
-        --------
-        >>> assert get_origin(Literal[42]) is Literal
-        >>> assert get_origin(int) is None
-        >>> assert get_origin(ClassVar[int]) is ClassVar
-        >>> assert get_origin(Generic[T]) is Generic
-        >>> assert get_origin(Union[T, int]) is Union
-        >>> assert get_origin(List[Tuple[T, T]][int]) == list
-        """
-        return getattr(tp, "__origin__", None)
-
-    def get_args(tp: Any) -> Union[Tuple[type, ...], Tuple[List[type], type]]:
-        """Get type arguments with all substitutions performed.
-
-        Parameters
-        ----------
-        tp : Any
-
-        Returns
-        -------
-        Union[Tuple[type, ...], Tuple[List[type], type]]
-            Callable[[t1, ...], r] -> ([t1, ...], r)
-
-        Examples
-        --------
-        >>> assert get_args(Dict[str, int]) == (str, int)
-        >>> assert get_args(int) == ()
-        >>> assert get_args(Union[int, Union[T, int], str][int]) == (int, str)
-        >>> assert get_args(Union[int, Tuple[T, int]][str]) == (int, Tuple[str, int])
-        >>> assert get_args(Callable[[], T][int]) == ([], int)
-        """
-        if hasattr(tp, "__origin__") and hasattr(tp, "__args__"):
-            args = tp.__args__
-            if get_origin(tp) is _Callable and args and args[0] is not Ellipsis:
-                args = (list(args[:-1]), args[-1])
-            return args
-        return ()
-
-
 COMMON_MODULES_WITH_OBFUSCATED_IMPORTS: Tuple[str, ...] = (
     "random",
     "numpy",

tests/test_signature_parsing.py

@@ -553,8 +553,7 @@ def test_parse_sig_with_new_vs_init(Obj):
 
 def test_Counter():
     # Counter has an interesting signature
-    # Python 3.7: (*args, **kwds)                   -- no self!
-    #      >=3.8: (self, iterable=None, /, **kwds)  -- pos-only
+    # Python >=3.8: (self, iterable=None, /, **kwds)  -- pos-only
     assert instantiate(builds(Counter, [1, 1, 2, 1])) == Counter([1, 1, 2, 1])
     assert instantiate(builds(Counter, a=1, b=2)) == Counter(a=1, b=2)
 

tests/test_utils.py

@@ -139,9 +139,6 @@ class SomeProtocol(Protocol[T]):  # type: ignore
 
 NoneType: TypeAlias = None
 
-vList = List[Any] if sys.version_info < (3, 8) else List
-vDict = Dict[Any, Any] if sys.version_info < (3, 8) else Dict
-
 
 @pytest.mark.parametrize(
     "in_type, expected_type",
@@ -158,14 +155,14 @@ class SomeProtocol(Protocol[T]):  # type: ignore
         (C, Any),  # unsupported primitives
         (type(None), Any),
         (set, Any),
-        (list, (vList if OMEGACONF_VERSION < Version(2, 2, 3) else list)),
+        (list, (List if OMEGACONF_VERSION < Version(2, 2, 3) else list)),
         (tuple, (Any if OMEGACONF_VERSION < Version(2, 2, 3) else tuple)),
-        (dict, (vDict if OMEGACONF_VERSION < Version(2, 2, 3) else dict)),
+        (dict, (Dict if OMEGACONF_VERSION < Version(2, 2, 3) else dict)),
         (callable, Any),
         (frozenset, Any),
-        (vList, vList),
+        (List, List),
         (Tuple, (Any if OMEGACONF_VERSION < Version(2, 2, 3) else Tuple)),
-        (Dict, vDict),
+        (Dict, Dict),
         (T, Any),
         (List[T], List[Any]),
         (Tuple[T, T], Tuple[Any, Any]),