feat: Add a convenient way of outputting system and dependency versions (#425)

src/skore/__init__.py

@@ -1,13 +1,16 @@
-"""Provide the Store class for managing information in a data science project."""
+"""Configure logging and global settings."""
 
 import logging
 
 import rich.logging
 
 from skore.project import Project, load
 
+from .utils._show_versions import show_versions
+
 __all__ = [
     "load",
+    "show_versions",
     "Project",
 ]
 

src/skore/utils/__init__.py

@@ -0,0 +1 @@
+"""Various utilities to help with development."""

src/skore/utils/_show_versions.py

@@ -0,0 +1,81 @@
+"""
+Utility methods to print system info for debugging.
+
+adapted from :func:`sklearn.show_versions`
+"""
+
+import importlib
+import platform
+import sys
+
+
+def _get_sys_info():
+    """System information.
+
+    Returns
+    -------
+    sys_info : dict
+        system and Python version information
+
+    """
+    python = sys.version.replace("\n", " ")
+
+    blob = [
+        ("python", python),
+        ("executable", sys.executable),
+        ("machine", platform.platform()),
+    ]
+
+    return dict(blob)
+
+
+def _get_deps_info():
+    """Overview of the installed version of main dependencies.
+
+    This function does not import the modules to collect the version numbers
+    but instead relies on standard Python package metadata.
+
+    Returns
+    -------
+    deps_info: dict
+        version information on relevant Python libraries
+
+    """
+    from importlib.metadata import PackageNotFoundError, version
+
+    deps = ["pip", "setuptools"]
+
+    requirements = importlib.metadata.requires("skore")
+    for requirement in filter(lambda r: "; extra" not in r, requirements):
+        deps.append(requirement)
+
+    deps_info = {
+        "skore": version("skore"),
+    }
+
+    for modname in deps:
+        try:
+            deps_info[modname] = version(modname)
+        except PackageNotFoundError:
+            deps_info[modname] = None
+    return deps_info
+
+
+def show_versions():
+    """Print useful debugging information.
+
+    Examples
+    --------
+    >>> from skore import show_versions
+    >>> show_versions()  # doctest: +SKIP
+    """
+    sys_info = _get_sys_info()
+    deps_info = _get_deps_info()
+
+    print("\nSystem:")  # noqa: T201
+    for k, stat in sys_info.items():
+        print(f"{k:>10}: {stat}")  # noqa: T201
+
+    print("\nPython dependencies:")  # noqa: T201
+    for k, stat in deps_info.items():
+        print(f"{k:>13}: {stat}")  # noqa: T201

tests/unit/utils/test_show_versions.py

@@ -0,0 +1,46 @@
+import os
+import tempfile
+
+from skore.utils._show_versions import _get_deps_info, _get_sys_info, show_versions
+
+
+def test_get_sys_info():
+    sys_info = _get_sys_info()
+    assert isinstance(sys_info, dict)
+    assert "python" in sys_info
+    assert "executable" in sys_info
+    assert "machine" in sys_info
+
+
+def test_get_deps_info():
+    deps_info = _get_deps_info()
+    assert isinstance(deps_info, dict)
+    assert "pip" in deps_info
+    assert "setuptools" in deps_info
+    assert "skore" in deps_info
+
+
+def test_show_versions(capfd):
+    show_versions()
+    captured = capfd.readouterr()
+    assert "python" in captured.out
+    assert "executable" in captured.out
+    assert "machine" in captured.out
+    assert "pip" in captured.out
+    assert "setuptools" in captured.out
+    assert "skore" in captured.out
+
+
+def test_get_deps_in_any_working_directory(capfd):
+    cwd = os.getcwd()
+    with tempfile.TemporaryDirectory() as temp_dir:
+        os.chdir(temp_dir)
+        show_versions()
+        captured = capfd.readouterr()
+        assert "python" in captured.out
+        assert "executable" in captured.out
+        assert "machine" in captured.out
+        assert "pip" in captured.out
+        assert "setuptools" in captured.out
+        assert "skore" in captured.out
+    os.chdir(cwd)